CN110023944B - Communication method, terminal equipment and core network equipment - Google Patents

Abstract

A data processing method and related equipment are provided, wherein the method comprises the following steps: the central node acquires a first hash value of first data from a first network node; the central node acquires the first data from a second network node and calculates a second hash value of the first data; the central node compares the first hash value with the second hash value; if the first hash value is the same as the second hash value, the central node determines that the first data is credible data; or, determining that the first data has not been tampered; alternatively, it is determined that the first hash value of the first data is a trusted hash value. By adopting the method and the device, the stored data can be effectively verified in a mode of respectively storing the data and the hashed values of the data, the validity of data storage is improved, and the tamper resistance of the data is also improved.

Description

Communication method and terminal equipment, core network equipment

technical field

The present application relates to the field of communication technologies, and in particular, to a data processing method and related equipment.

Background technique

Blockchain (block chain) is a distributed database, which can be understood as a chain data structure that combines data blocks in a sequential manner according to time sequence, and is cryptographically guaranteed. Tamperable and unforgeable distributed ledgers. In the prior art solution, the block chain generated by the network node is a data structure in which blocks containing transaction information are linked in a certain order. In this data structure, a block is composed of a block header containing metadata and a tight It is composed of one or more transaction information that constitutes the main body of the block, wherein the one or more transaction information is generated according to the data generated by the device node.

For a piece of data generated by a device node, the prior art solution is to generate a transaction information according to the data, and generate a block in the blockchain from the transaction through a consensus algorithm. In this way, if illegal personnel replace and tamper with the transaction information of the data in the blockchain, the correctness of the blockchain cannot be verified through the blockchain, which reduces the effectiveness of data storage.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data processing method and related equipment. By storing data and a hash value of the data respectively, effective verification of the stored data can be realized, the effectiveness of data storage is improved, and the data tamper resistance.

In a first aspect, an embodiment of the present application provides a data processing method, including:

the central node obtains the first hash value of the first data from the first network node;

The central node obtains the first data from the second network node, and calculates a second hash value of the first data;

the central node compares the first hash value with the second hash value;

If the first hash value is the same as the second hash value, the central node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that all The first hash value of the first data is a trusted hash value.

In a first aspect, the central node obtains the first hash value of the first data of the first network node, and obtains the first data of the second network node, and calculates the second hash value of the first data, and the first hash value is The column value and the hash value are compared to determine whether the first data is authentic data. This scheme realizes effective verification of the stored data, thereby improving the effectiveness of data storage.

In an optional embodiment, the method further includes, if the first hash value is different from the second hash value, determining, by the central node, that the first data is untrusted data; or, determining The first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value.

In an optional embodiment, the central node acquiring the first hash value of the first data from the first network node is specifically acquiring the first hash value corresponding to the first data from the second blockchain of the first network node A hash value; wherein, the second block chain is composed of blocks generated by transaction information containing hash value items of data.

In an optional embodiment, the central node acquiring the first data from the second network node specifically acquires the first data from the first blockchain of the second network node, wherein the The first blockchain is composed of blocks generated from transaction information containing data items.

In an optional embodiment, the method further includes: the central node acquires first hash value association information of the first data from a first network node, and the association information includes at least one of the following: the first hash value An index value of the data, time information of the first data, an identifier of a device node that sends the first data, an address for sending the first data, and an address for receiving the first data.

In an optional embodiment, the method further includes: the central node acquires association information of the first data from a second network node, where the association information includes at least one of the following: an index value of the first data , the time information of the first data, the identifier of the device node sending the first data, the address for sending the first data, and the address for receiving the first data.

In an optional embodiment, before the central node acquires the first hash value of the first data from the first network node, the method further includes: the central node selects a first network node and determines it as the target first network The central node obtains the first hash value of the first data from the first network node, specifically, obtains the first hash value of the first data from the second blockchain of the target first network node.

In an optional embodiment, the central node selecting a first network node and determining it as the target first network node includes: the central node selecting a first network node that satisfies the first legal condition from the at least one first network node The first network node is the target first network node; the first legal condition is: the number of nodes that are the same as the first hash value of the first data of the second blockchain of the target first network node exceeds the first threshold.

In an optional embodiment, before the central node acquires the first data from the second network node, the method further includes:

The central node selects a second network node and determines it as the target second network node. The obtaining, by the central node, the first data from the second network node includes: the central node obtaining the first data from the first blockchain of the target second network node.

In an optional embodiment, the central node selects a second network node and determines it as the target second network node, specifically, selects a network node that satisfies the second legal condition from at least one second network node as the second network node A target network node; the second legal condition is: the number of network nodes that are identical to the first data of the first blockchain of the target second network node exceeds a second threshold.

In an optional embodiment, the method further includes: if it is determined that the first data is trusted data, the central node determines that the i-th transaction information of the third blockchain meets the generation conditions, and generates a third area The i-th transaction information of the blockchain; or, if it is determined that the first data is untrusted data, the central node determines that the i-th transaction information of the third blockchain does not meet the generation conditions, and does not Generate the i-th transaction information of the third blockchain; or, if it is determined that the first data is untrusted data, the central node determines that the j-th transaction information of the third blockchain satisfies the generation condition, generate the jth transaction information of the third blockchain.

In a second aspect, an embodiment of the present application provides a data processing method, including:

The network node generates a block of the blockchain according to the at least one first transaction information. The first transaction information includes information corresponding to at least one of the following items: transaction identification item, node identification item that generated the first transaction information, data item, data index value item, data hash value item, time Information items, sender items of data, and receiver items of data.

In the second aspect, the device node sends the transaction information to the network node, which can relieve the storage pressure of the device node. In addition, a blockchain about the transaction information is generated at the network node, which improves the effectiveness of data storage.

In an optional embodiment, before the network node generates a block of the blockchain according to at least one first transaction information, the method further includes: receiving, by the network node, data information sent by at least one device node; The network node generates at least one first transaction information according to the data information. It can be seen that the first transaction information of the network node is generated by the network node.

In an optional embodiment, the data information includes at least one of the following: first data, a first hash value of the first data, an index value of the first data, the first data time information, the identifier of the device node sending the data information, the address of the device node and the address of the network node. Optionally, when the first transaction information is generated according to the data information, one or more items of information included in the first transaction information are also determined through the data information.

In an optional embodiment, if the data information includes the first data and does not include the first hash value, the network node calculates the first hash value of the first data; The generation of the at least one first transaction information by the network node according to the data information is specifically to generate at least one first transaction information according to the data information and the first hash value. Optionally, the first transaction information may be related to the first data, or the first transaction information may also be related to the first hash value.

In an optional embodiment, the network node sends the at least one first transaction information to other network nodes or at least one device node. For example, the network node broadcasts the at least one first transaction information.

In an optional embodiment, the method further includes: the network node receives at least one second transaction information sent by other network nodes or at least one device node; wherein the second transaction information includes at least one of the following Information: transaction identification item, node identification item that generates the second transaction information, data item, data index value item, data hash value item, time information item, the sender item of the data, and the data item. Receiver item.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a data item, the network node generates a first area based on a first algorithm according to the at least one first transaction information Blocks of the blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information includes a data item. One transaction information and/or the at least one second transaction information, based on the second algorithm, generate a block of the first blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a hash value item of data, the network node, according to the at least one first transaction information, based on a third algorithm, Generate the blocks of the second blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a hash value item of data, and the at least one second transaction information includes a hash value item of data, then the The network node generates a block of the second blockchain based on the fourth algorithm according to the at least one first transaction information and/or the at least one second transaction information.

In an optional embodiment, if the at least one first transaction information includes a data item, the network node generates the first blockchain based on the fifth algorithm according to the at least one first transaction information. and, if the at least one first transaction information contains a hash value item of data, and the at least one second transaction information contains a hash value item of data, the network node according to the at least one first transaction information A block of transaction information and/or the at least one second transaction information is generated based on the sixth algorithm; or,

If the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information and/or the at least one second transaction information, based on the seventh algorithm, generate a block of the first blockchain; and, if the at least one first transaction information contains a hash value item of data, then the network node, according to the at least one first transaction information, Based on the eighth algorithm, a block of the second blockchain is generated.

In an optional embodiment, in the case that the network node generates a first blockchain containing the first data and stores the hash value of the first data, the network node obtains the first data obtain the first data from the first blockchain, and calculate the second hash value of the first data; combine the first hash value with the second hash value Compare the column values; if the first hash value is the same as the second hash value, it is determined that the first data is trusted data; or, it is determined that the first data has not been tampered with; or, determining that the first hash value of the first data is a trusted hash value; or, if the first hash value is not the same as the second hash value, determining that the first data is not trusted data; or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, in the case that the network node generates a second blockchain about the first hash value containing the first data and stores the first data, the second block chain is stored from the second area. The block chain obtains the first hash value of the first data; obtains the stored first data, and calculates the second hash value of the first data; associates the first hash value with the first hash value Two hash values are compared; if the first hash value is the same as the second hash value, it is determined that the first data is trusted data; or, it is determined that the first data has not been tampered with; Or, determine that the first hash value of the first data is a trusted hash value; or, if the first hash value is not the same as the second hash value, determine that the first data is Untrusted data; or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, when the network node generates a first blockchain containing the first data and generates a second blockchain containing the hash value of the first data, Obtain the first hash value of the first data from the second blockchain; obtain the first data from the first blockchain, and calculate the second hash value of the first data; comparing the first hash value with the second hash value; if the first hash value is the same as the second hash value, determine that the first data is trusted data; Or, it is determined that the first data has not been tampered with; or, it is determined that the first hash value of the first data is a trusted hash value; or, if the first hash value is the same as the second hash value If the values are not the same, it is determined that the first data is untrusted data; or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, the method further includes: the network node sends the data information or the block of the blockchain to the central node. Optionally, the network node may send the data information or the block of the blockchain after receiving the data information or the block acquisition request of the central node.

In an optional embodiment, after the network node generates the block of the blockchain according to the at least one first transaction information, the method further includes: the network node sends a first notification message to the at least one device node , the first notification message is used to notify the device node that a block of the blockchain has been generated. Optionally, after receiving the first notification message, the device node performs corresponding processing on the data information, for example, deletion.

In an optional embodiment, the method further includes: the network node sends a first deletion message to the device node, where the first deletion message is used to instruct the device node to delete the data information or delete the block. Indication message.

In an optional embodiment, the method further includes: receiving, by the network node, a second deletion message sent by the at least one device node, where the second deletion message is used by the at least one device node to request deletion of the data information or delete blocks. Optionally, the network node determines the data information or block that can be deleted for the device node according to the second delete message, or the network node can send a delete permission message to the device node to indicate The device node itself determines the data information that can be deleted or the block that can be deleted.

In an optional embodiment, the method further includes: the network node determines a block to be deleted from a target blockchain, where the target blockchain is any blockchain stored by the network node.

In an optional embodiment, the method further includes: the network node sends a plurality of transaction information contained in the block of the blockchain to the upper-level network node. For example, when the storage pressure of the network node is high, multiple transaction information can be transferred to the network node of the upper level for storage, so as to reduce the storage pressure of the network node.

In an optional embodiment, the method further includes: the network node deletes the block to be deleted in the target blockchain. Optionally, the network node determines the block to be deleted from the target blockchain by determining the block to be deleted from the target blockchain according to a preset deletion rule; wherein, the preset deletion rule is: the network The number of blocks stored by the node in the target blockchain is greater than a preset threshold, or the block to be deleted is a block whose generation time duration exceeds the time threshold, or the block to be deleted is a block whose serial number is less than the serial number Threshold block. Optionally, the network node records the content of the block header of the block to be deleted, so as to determine the node where the deleted block is stored when receiving the query information about the deleted block.

In a third aspect, an embodiment of the present application provides a data processing method, including:

The network node receives one or more data information sent by at least one device node;

The network node generates at least one first transaction information according to the one or more pieces of data information.

The first transaction information includes information corresponding to at least one of the following items: a transaction identification item, a node identification item that generates the first transaction information, a data item, an index value item of the data, a hash value item of the data, and a time information item , the sender item of the data, and the receiver item of the data.

Optionally, the data information includes at least one of the following: data, the first hash value of the data, the index value of the data, the time when the data is generated, the identifier of the device node, the data of the device node. address and the address of the network node.

Optionally, when the first transaction information is generated according to the data information, one or more items of information included in the first transaction information are also determined through the data information.

In the second aspect, the device node sends data information to the network node, which can relieve the storage pressure of the device node. In addition, the network node can generate transaction information according to the data information for storage.

In an optional embodiment, the method further includes: if the data information includes the first data and does not include the first hash value, the network node calculates a first hash value of the first data column value; the network node generating at least one first transaction information according to the data information is specifically generating at least one first transaction information according to the data information and the first hash value.

In an optional embodiment, the method further includes: the network node sending the at least one first transaction information to other network nodes or at least one device node. For example, the network node broadcasts the at least one first transaction information.

In an optional embodiment, the method further includes: the network node receives at least one second transaction information sent by other network nodes or at least one device node; wherein the second transaction information includes at least one of the following Information: transaction identification item, node identification item that generates the second transaction information, data item, data index value item, data hash value item, time information item, the sender item of the data, and the data item. Receiver item.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a data item, the network node generates a first area based on a first algorithm according to the at least one first transaction information Blocks of the blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information includes a data item. One transaction information and/or the at least one second transaction information, based on the second algorithm, generate a block of the first blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a hash value item of data, the network node, according to the at least one first transaction information, based on a third algorithm, Generate the blocks of the second blockchain.

In an optional embodiment, the method further includes: if the at least one first transaction information includes a hash value item of data, and the at least one second transaction information includes a hash value item of data, then the The network node generates a block of the second blockchain based on the fourth algorithm according to the at least one first transaction information and/or the at least one second transaction information.

In an optional embodiment, if the at least one first transaction information includes a data item, the network node generates the first blockchain based on the fifth algorithm according to the at least one first transaction information. and, if the at least one first transaction information contains a hash value item of data, and the at least one second transaction information contains a hash value item of data, the network node according to the at least one first transaction information A block of transaction information and/or the at least one second transaction information is generated based on the sixth algorithm; or,

If the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information and/or the at least one second transaction information, based on the seventh algorithm, generate a block of the first blockchain; and, if the at least one first transaction information contains a hash value item of data, then the network node, according to the at least one first transaction information, Based on the eighth algorithm, a block of the second blockchain is generated.

Wherein, "the network node generates a block of the second blockchain based on the eighth algorithm according to the at least one first transaction information" may be equivalent to "the network node, according to the at least one first transaction information, Generate the blocks of the second blockchain". Specifically, the eighth algorithm may be an algorithm for determining which network node generates a block, or may be an algorithm for the network node to use the eighth algorithm to generate a block. For example, the eighth algorithm may be that the network node generates all the second blockchain blocks by itself. No other network nodes are involved in generating the blocks of the second blockchain.

Similarly, when the network node does not form a blockchain with other network nodes, but only the network node independently generates all blocks to form a blockchain, then the first algorithm, the third algorithm, and the fifth algorithm can be: Network nodes generate all blocks in the blockchain.

In a word, "the network node generates a block of the first blockchain based on the fifth algorithm according to the at least one first transaction information", which can be equivalent to "the network node generates a block of the first blockchain according to the at least one first transaction information" , to generate a block of the first blockchain"; or, "If the at least one first transaction information contains the hash value item of the data, the network node will, according to the at least one first transaction information, based on the third Algorithm to generate the block of the second blockchain" can be equivalent to "if the at least one first transaction information contains the hash value item of the data, the network node generates the first transaction information according to the at least one first transaction information. two blocks of the blockchain"; or "the network node generates a block of the first blockchain according to the at least one first transaction information and based on the first algorithm" may be equivalent to "the network node generates a block of the first blockchain according to the Describe at least one first transaction information to generate a block of the first blockchain".

For the network node and other network nodes, if only the network node generates blocks of all blockchains alone, and other network nodes do not generate blocks, for example, the fourth algorithm is also the network node that generates all blockchains block. And so on. The algorithm may be used to decide who generates blocks. For example, if the network node generates the block by default, the network node can directly generate the block without needing to judge the algorithm every time.

In an optional embodiment, the method further includes: in the case that the network node generates a first blockchain including the first data and stores the hash value of the first data, obtaining the first data a first hash value; obtain the first data from the first blockchain, and calculate a second hash value of the first data; combine the first hash value with the second hash If the first hash value is the same as the second hash value, it is determined that the first data is trusted data; or, it is determined that the first data has not been tampered with; or, it is determined that The first hash value of the first data is a trusted hash value; or, if the first hash value is different from the second hash value, it is determined that the first data is untrusted data or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, the method further includes: in the case that the network node generates a second blockchain about the first hash value including the first data and stores the first data, from the The second blockchain obtains the first hash value of the first data; obtains the stored first data, and calculates the second hash value of the first data; associates the first hash value with The second hash value is compared; if the first hash value is the same as the second hash value, it is determined that the first data is trusted data; or, it is determined that the first data is not tampered; or, determine that the first hash value of the first data is a trusted hash value; or, if the first hash value is different from the second hash value, determine that the first hash value is A piece of data is untrusted data; or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, the method further includes: generating, for the network node, a first block chain containing the first data and a second block chain containing the hash value of the first data. In the case of obtaining the first hash value of the first data from the second blockchain; obtaining the first data from the first blockchain, and calculating the second hash value of the first data column value; compare the first hash value with the second hash value; if the first hash value is the same as the second hash value, determine that the first data is valid or, determining that the first data has not been tampered with; or, determining that the first hash value of the first data is a trusted hash value; or, if the first hash value is the same as the first hash value If the two hash values are different, it is determined that the first data is untrusted data; or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value. By storing the data and the hash value of the data separately, even if the data is tampered, effective verification of the stored data can be achieved, the effectiveness of data storage is improved, and the tamper-proof capability of the data is also improved.

In an optional embodiment, the method further includes: the network node sends the data information or the block of the blockchain to the central node. Optionally, the network node may send the data information or the block of the blockchain after receiving the data information or the block acquisition request of the central node.

In an optional embodiment, after the network node generates the block of the blockchain according to the at least one first transaction information, the method further includes: the network node sends a first notification message to the at least one device node , the first notification message is used to notify the device node that a block of the blockchain has been generated. Optionally, after receiving the first notification message, the device node performs corresponding processing on the data information, for example, deletion.

In an optional embodiment, the method further includes: the network node sends a first deletion message to the device node, where the first deletion message is used to instruct the device node to delete the data information or delete the block. Indication message.

In an optional embodiment, the method further includes: receiving, by the network node, a second deletion message sent by the at least one device node, where the second deletion message is used by the at least one device node to request deletion of the data information or delete blocks. Optionally, the network node determines the data information or block that can be deleted for the device node according to the second delete message, or the network node can send a delete permission message to the device node to indicate The device node itself determines the data information that can be deleted or the block that can be deleted.

In an optional embodiment, the method further includes: the network node determines a block to be deleted from a target blockchain, where the target blockchain is any blockchain stored by the network node.

In an optional embodiment, the method further includes: the network node sends a plurality of transaction information contained in the block of the blockchain to the upper-level network node. For example, when the storage pressure of the network node is high, multiple transaction information can be transferred to the network node of the upper level for storage, so as to reduce the storage pressure of the network node.

In an optional embodiment, the method further includes: the network node deletes the block to be deleted in the target blockchain. Optionally, the network node records the content of the block header of the block to be deleted, so as to determine the node where the deleted block is stored when receiving the query information about the deleted block.

In an optional embodiment, the network node determining the block to be deleted from the target blockchain includes: determining the block to be deleted from the target blockchain according to a preset deletion rule; wherein, the The preset deletion rule is: the number of blocks stored in the target blockchain by the network node is greater than a preset threshold, or the block to be deleted is a block whose generation time duration exceeds the time threshold, or the block to be deleted The deleted block is the block whose block sequence number is less than the sequence number threshold.

In a fourth aspect, an embodiment of the present application provides a data processing method, including:

The device node sends one or more pieces of data information to the network node, where the data information includes at least one of the following: first data, a first hash value of the first data, an index value of the first data, the The time information of the first data, the identifier of the device node sending the data information, the address of the device node and the address of the network node; the data information is used by the network node to generate the first transaction information. In this way, the device node can reduce the storage pressure of the device node by sending the data information to the network node.

Alternatively, the device node generates at least one second transaction information according to one or more pieces of data information, and sends the at least one second transaction information to the network node; the second transaction information includes at least one of the following information: A data item, an index value item of the data, a hash value item of the data, a time information item, a sender item of the data, and a receiver item of the data. In this way, the device node can also reduce the storage pressure of the device node by sending the transaction information to the network node.

In an optional embodiment, the device node receives a blockchain first notification message sent by a network node, where the first notification message is used to notify the network node that the blockchain has been generated according to the data information message of the block.

In an optional embodiment, the device node receives the block sent by the network node.

In an optional embodiment, the method further includes: the device node receives a first deletion message sent by the network node, where the first deletion message is used to instruct the device node to delete the data information or delete Indication message for the block. The device node may perform deletion processing on the data information or the block in the case of receiving the first deletion message.

In an optional embodiment, the method further includes: a second deletion message sent by the device node to the network node, where the second deletion message is used to request deletion of the data information or deletion of a block. For example, in the case of high storage pressure, the device node may send a second delete message to the network node.

In an optional embodiment, the method further includes: the device node deletes the data information.

In an optional embodiment, the deletion of the data information by the device node specifically deletes the data information whose generation duration exceeds the first time threshold, which can reduce the storage pressure of the device node.

In an optional embodiment,

In a fifth aspect, an embodiment of the present application provides a central node, including:

an acquisition module for acquiring the first hash value of the first data from the first network node;

a calculation module, configured to obtain the first data from the second network node, and calculate a second hash value of the first data;

a comparison module, configured to compare the first hash value with the second hash value;

a determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or, determine The first hash value of the first data is a trusted hash value.

The central node provided by the fifth aspect of the embodiment of the present application is configured to execute the data processing method provided by the first aspect of the present application. For details, reference may be made to the description of the first aspect of the embodiment of the present application, which will not be repeated here.

In a possible design, the structure of the central node includes a processor and a transceiver, and the processor is configured to execute the data processing method provided by the first aspect of the present application. Optionally, it may further include a memory, where the memory is configured to store application program codes that support the central node to execute the above method, and the processor is configured to execute the application program stored in the memory.

In a sixth aspect, an embodiment of the present application provides a network node, including:

The block generation module is configured to generate a block of the blockchain according to at least one first transaction information.

The first transaction information includes information corresponding to at least one of the following items: a transaction identification item, a node identification item that generates the first transaction information, a data item, an index value item of the data, a hash value item of the data, and a time information item , the sender item of the data, and the receiver item of the data.

The network node provided by the sixth aspect of the embodiment of the present application is configured to execute the data processing method provided by the second aspect of the present application. For details, reference may be made to the description of the second aspect of the embodiment of the present application, which will not be repeated here.

In a seventh aspect, an embodiment of the present application provides another network node, including:

a receiving module, configured to receive one or more data information sent by at least one device node;

A generating module, configured to generate at least one first transaction information according to the one or more pieces of data information. The first transaction information includes information corresponding to at least one of the following items: a transaction identification item, a node identification item that generates the first transaction information, a data item, an index value item of the data, a hash value item of the data, and a time information item , the sender item of the data, and the receiver item of the data.

The network node provided by the seventh aspect of the embodiment of the present application is configured to execute the data processing method provided by the third aspect of the present application. For details, reference may be made to the description of the third aspect of the embodiment of the present application, which is not repeated here.

In a possible design, the structure of the network node includes a processor and a transceiver, and the processor is configured to execute the data processing method provided in the second aspect or the third aspect of the present application. Optionally, a memory may be further included, the memory is used for storing application program codes that support the network node to perform the above method, and the processor is configured to execute the application program stored in the memory.

In an eighth aspect, an embodiment of the present application provides a device node, including:

A sending module, configured to send one or more data information to a network node, the data information including at least one of the following: first data, a first hash value of the first data, and an index value of the first data , the time information of the first data, the identifier of the device node sending the data information, the address of the device node and the address of the network node;

The data information is used by the network node to generate the first transaction information;

or,

a generating module, configured to generate at least one second transaction information according to one or more data information, and send the at least one second transaction information to the network node;

The second transaction information includes information corresponding to at least one of the following items: data item, data index value item, data hash value item, time information item, data sender item and data receiver item.

The device node provided by the eighth aspect of the embodiment of the present application is used to execute the data processing method provided by the fourth aspect of the present application. For details, reference may be made to the description of the fourth aspect of the embodiment of the present application, which is not repeated here.

In a possible design, the structure of the device node includes a processor and a transceiver, where the processor is configured to execute the data processing method provided by the fourth aspect of the present application. Optionally, a memory may be further included, where the memory is configured to store application program code that supports the device node to perform the above method, and the processor is configured to execute the application program stored in the memory.

In a ninth aspect, an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the above-mentioned central node, which includes a program designed for executing the above-mentioned aspects.

In a tenth aspect, an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the above-mentioned network node, which includes a program designed for executing the above-mentioned aspects.

In an eleventh aspect, an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the above-mentioned device node, which includes a program designed for executing the above-mentioned aspects.

In the embodiments of this application, the names of the central node, network node, device node, first network node, and second network node do not limit the devices themselves. In actual implementation, these devices may appear with other names. As long as the functions of the respective devices are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalents.

In the embodiment of the present application, by sending one or more first data in the device node to other network nodes for storage, the storage pressure of the device node can be relieved, and in addition, the data and the hash value can be stored separately in the network node , even if the data has been tampered with, the data can be verified by the stored hash value, so the tamper-proof capability of the data is improved.

Description of drawings

FIG. 1 is a possible network structure diagram provided by an embodiment of the present application;

FIG. 2 is another possible network structure diagram provided by an embodiment of the present application;

3 is a schematic flowchart of a data processing method provided by an embodiment of the present application;

4 is a schematic flowchart of another data processing method provided by an embodiment of the present application;

5 is a schematic flowchart of another data processing method provided by an embodiment of the present application;

6 is a schematic flowchart of another data processing method provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of another data processing method provided by an embodiment of the present application;

FIG. 8 provides a modular schematic diagram of a central node according to an embodiment of the present application;

FIG. 9 provides a schematic structural diagram of another central node according to an embodiment of the present application;

FIG. 10 provides a modular schematic diagram of a network node according to an embodiment of the present application;

FIG. 11 provides a schematic structural diagram of another network node according to an embodiment of the present application;

FIG. 12 provides a modular schematic diagram of a device node according to an embodiment of the present application;

FIG. 13 provides a modular schematic diagram of another device node according to an embodiment of the present application;

FIG. 14 provides a schematic structural diagram of a device node according to an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to FIG. 1 , a possible network architecture diagram is provided for this embodiment of the present application. The network architecture shown in FIG. 1 includes a first network node, a second network node and a device node. The device node is a source for collecting data or generating data, the first network node may be used to store data sent by the device node, and the second network node may be used to store a hash value generated from the data in the device node. In this way, when the storage capacity of the device node is limited, other network nodes can be used for storage, which relieves the storage pressure of the device node.

Further, both the first network node and the second network node may generate their own blockchains. For example, the first network node may generate the second blockchain according to the hash value of the data sent by the device node, and the second network node may The first blockchain is generated according to the data sent by the device node. The data and the hash value are stored separately through the blockchain, and even if all the data of the first blockchain generated from the data is tampered with, the first block can be identified by the hash value of the second blockchain. The data in the chain is verified, so this improves the tamper resistance of the data.

Further, referring to FIG. 2 , another possible network architecture diagram is provided in this embodiment of the present application. The network architecture shown in FIG. 2 includes a first network node and a device node. The device node has the same function as the device node shown in FIG. 1 , and the first network node shown in FIG. 2 can not only store the data sent by the device node, but also store the hash value generated from the data in the device node. Under the network architecture shown in FIG. 2 , the storage pressure of the device node can still be relieved by storing the data and the hash value by the first network node when the storage capacity of the device node is limited.

Further, the first network node may generate the first blockchain according to the data sent by the device node, and generate the second blockchain according to the hash value of the data sent by the device node. It is realized that the data and the hash value are stored separately through the blockchain. Even if all the data of the first blockchain generated from the data are tampered with, the hash value of the second blockchain can be used for the first blockchain. The data in the blockchain is verified, so this improves the tamper resistance of the data.

The device nodes involved in this application may include industrial device nodes, various industrial sensors, control units, etc.; may also include wearable devices, household appliances, home sensors, home control units, etc.; may also include user equipment, including mobile phones , intelligent terminals, multimedia equipment, streaming media equipment, etc. This application does not make any limitation on the form and type of the device node. The device node has the capability of data collection and/or data transmission.

The network nodes involved in this application are devices with storage and communication functions, for example, capable of receiving data or data hash values of device nodes, and receiving data or hash values from other network nodes. A network node can be a base station, a gateway, a network storage unit, a cloud server, a computer device, and so on.

Please refer to FIG. 3 , which provides a schematic flowchart of a data processing method according to an embodiment of the present application. As shown in FIG. 3 , the embodiment of the present application involves a first network node, a second network node, a device node, and a central node. The data processing method is executed by the central node. For the specific execution process, please refer to the following detailed introduction.

101. The central node acquires the first hash value of the first data from the first network node.

Optionally, the first network node may directly store the first hash value of the first data, or the first hash value of the first data may be stored in a second hash value of the first network node. In the blockchain, the second blockchain is composed of blocks generated by transaction information including hash value items of data.

Optionally, the central node obtains first hash value association information of the first data from a first network node, and the association information includes at least one of the following: an index value of the first data, the first hash value of the first data Time information of a piece of data, an identifier of a device node that sends the first data, an address for sending the first data, and an address for receiving the first data.

102. The central node acquires the first data from the second network node, and calculates a second hash value of the first data.

Optionally, the second network node may directly store the first data, or the first data may be stored in a first blockchain in the second network node, where the first blockchain Consists of blocks generated from transaction information containing data items.

The central node acquires association information of the first data from the second network node, and the association information includes at least one of the following: an index value of the first data, time information of the first data, sending the The device node identification of the first data, the address for sending the first data, and the address for receiving the first data.

It should be noted that, in the embodiments of the present application, the blockchain storing the first data is set as the first blockchain, and the network node storing the first blockchain is set as the second network node. The blockchain storing the first hash value of the first data is set as the second blockchain, and the network node storing the second blockchain is set as the first network node, but whether the first data is stored in the first The blockchain and whether the first hash value of the first data is stored in the second blockchain are not limited in the embodiments of the present application. Next, based on the above settings, the description of the embodiments of the present application is completed.

In the first optional solution, the first hash value of the first data is not stored in the second blockchain of the first network node, but is directly stored by the first network node; and the first data is stored in in the first blockchain of the second network node. In this solution, the central node directly obtains the first hash value of the first data from the first network node; the central node obtains the first data through the first blockchain of the second network node, and calculates the The second hash value of the first data. Next, the central node performs step 103 to compare the first hash value with the second hash value, and obtains the comparison result as in step 104 or step 105 .

In the second optional solution, the first hash value of the first data is stored in the second blockchain of the first network node; and the first data is not stored in the first blockchain of the second network node, Instead, it is directly stored by the second network node. In this solution, the central node obtains the first hash value of the first data through the first blockchain of the first network node; the central node directly obtains the first data from the second network node, and calculates the hash value of the first data. The second hash value. Next, the central node performs step 103 to compare the first hash value with the second hash value, and obtains the comparison result as in step 104 or step 105 .

In a third optional solution, the first hash value of the first data is stored in the second blockchain of the first network node; the first data is stored in the first blockchain of the second network node. In this solution, the central node obtains the first hash value of the first data through the second blockchain of the first network node; the central node obtains the first hash value through the first blockchain of the second network node data, and calculate a second hash value of the first data. Next, the central node performs step 103 to compare the first hash value with the second hash value, and obtains the comparison result as in step 104 or step 105 .

103. The central node compares the first hash value with the second hash value.

104. If the first hash value is the same as the second hash value, the central node determines that the first data is trusted data; or, determines that the first data has not been tampered with; or, It is determined that the first hash value of the first data is a trusted hash value.

106. If it is determined that the first data is trusted data, the central node determines that the i-th transaction information of the third blockchain meets the generation condition, and generates the i-th transaction information of the third blockchain.

Specifically, the central node can set whether the first data is feasible data, and set it as the generation condition for the central node to determine whether to generate the i-th transaction information of the third blockchain, so as to determine the first After the data is trusted data, it is determined that the i-th transaction information of the third blockchain meets the generation conditions, and the i-th transaction information is generated.

105. If the first hash value is different from the second hash value, the central node determines that the first data is untrusted data; or, determines that the first data has been tampered with; or , determining that the first hash value of the first data is an untrusted hash value.

107. If it is determined that the first data is untrusted data, the central node determines that the i-th transaction information of the third blockchain does not meet the generation condition, and does not generate the transaction information of the third blockchain. i-th transaction information.

Specifically, in combination with the central node's setting of the conditions for generating the i-th transaction information of the third blockchain in step 106, after determining that the first data is untrusted data, determine the third If the i-th transaction information of the blockchain does not meet the generation condition, the i-th transaction information of the third blockchain is not generated.

Further optionally, if it is determined that the first data is untrusted data, the central node determines that the jth transaction information of the third blockchain meets the generation conditions, and generates the jth transaction information of the third blockchain. j transaction information.

For the solution of step 106 and step 107, an example is given:

Step 106, for example, the condition for generating the i-th transaction of the third blockchain is to determine that the first data is trusted data, and when the first data is trusted data, use the first data to process certain things, For example, fetching the first data for big data analysis, and doing various data analysis and extraction, is not limited here.

For example, the first data is the measured value of PM2.5, extract the first data within a period of time (for example, one week), and calculate a plurality of first data according to the first data to calculate the PM2.5 concentration during this period, To get this week's air quality.

For example, the first data is the measurement data value of the instrument of the industrial equipment, extract the first data within a period of time (for example, one week), and obtain the measurement data value exceeding the threshold 1 according to the first data, through the number of data and the corresponding time , to judge the instrument failure rate.

For example, the first data is a medical record of a hospital, a government agency or a third-party agency (reimbursement unit) or a foreign hospital, if the first data is trusted data, the first data is called.

For example, the i-th transaction information is: calling the first data, and the transaction information specifically includes at least one of the following: the user ID of calling the first data, the time of calling the first data, the authority to call the first data, the index value of the first data , the source of the first data (sender address), and so on.

The condition for generating the i-th transaction is: when the first data is trusted data, the first data is called. The calling of the first data can be used for big data analysis, the first data can be viewed, and the like.

Similarly, for the jth transaction information in step 107, the same is true. For example, the jth transaction may be: calling the first data. The jth transaction information may be that the central node sends a data error message to the device 1 . Therefore, the condition for generating the jth transaction information is: when the first data is trusted data, the first data is called; or the condition for generating the jth transaction information is: when the first data is untrustworthy data, the central node Send a data error message to device 1;

Of course, the transaction information forming the blockchain can be of various kinds. This application does not limit the content and form of the third blockchain transaction, and the transaction information of the third blockchain is not limited to calling the first data. Taking Bitcoin as an example, a transaction is a sum of money (for example, 10 yuan) from sender A to receiver B. But in the Internet of Things, the action performed by the device is a kind of transaction information, for example, device A sends a message to device B. Or the data of the calling device A is a kind of transaction information.

Steps 106 and 107 are optional steps.

It should be noted that, in the embodiments of the present application, it is not limited whether the central node, the first network node, and the second network node are different devices with communication or storage functions. Next, the implementation manner of the central node, the first network node and the second network node will be described.

In optional solution A, the central node, the first network node and the second network node are physically separated devices with communication or storage functions, for example, the first network node is a base station, the second network node is a storage device, and the center Nodes are third-party devices. The first data may be data sent by the device node to the second network node for storage; the first hash value of the first data may be the hash value of the data sent by the device node to the first network node, or the The first hash value of a piece of data is generated by the first network node according to the first data sent by the device node.

Based on the optional solution A, it is further optional that the system as shown in FIG. 1 includes multiple device nodes, multiple first network nodes, and multiple second network nodes. Wherein, the second blockchain is generated by the plurality of first network nodes based on an algorithm (such as a consensus algorithm), and the central node obtains the first data from the second blockchain of the first network node. Before a hash value, a first network node may be selected from a plurality of first network nodes and determined as the target first network node. In an optional solution, the central node may randomly select a first network node and determine it as the target first network node. Or, in another optional solution, the central node selects a first network node that satisfies the first legal condition from at least one first network node as the target first network node. The first legal condition is that the number of nodes that are the same as the first hash value of the first data of the second blockchain of the target first network node exceeds a first threshold. For example, assuming that the number of first network nodes is 10, the first threshold is 5, and the central node obtains the first hash value of the first data in the block storing the first data. There are three first hash values of the first data in a network node, the number of the first hash values of the first data of each value is counted separately, if the number of the first hash values of the same value exceeds 5, select one of the first network nodes where the first hash value of the numerical value is located and determine it as the target first network node.

In the system shown in FIG. 1 , further optionally, the first blockchain is generated by the plurality of second network nodes based on an algorithm, and the central node is generated from the first blockchain of the second network node at the central node. Before acquiring the first data in the process, a second network node may be selected from a plurality of second network nodes and determined as the target second network node. In an optional solution, the central node may randomly select a second network node and determine it as the target second network node. Or, in another optional solution, the central node selects a second network node that satisfies the second legal condition from at least one second network node as the target second network node. Wherein, the second legal condition is: the number of nodes identical to the first data of the first blockchain of the target second network node exceeds a second threshold. For example, assuming that the number of second network nodes is 10, the second threshold is 5, and the central node obtains the first data in the block storing the first data, if there are 3 second network nodes in the plurality of second network nodes If the number of first data of the same value exceeds 5, select one of the second network nodes where the first data of the value is located to determine the number of first data of each value. is the target second network node.

In optional solution B, the first network node and the second network node are physically separated devices with communication or storage functions, and the central node is either the first network node or the second network node. The first data may be data sent by the device node to the second network node for storage; the first hash value of the first data may be the hash value of the data sent by the device node to the first network node, or the The first hash value of a piece of data is generated by the first network node according to the first data sent by the device node.

Optionally, with reference to the system architecture shown in FIG. 1 , the first network node is the base station, the second network node is the storage device, and the central node is the first network node. Since the central node is the first network node, the first network node may select one of multiple second network nodes and determine it as the target second network node. For the specific selection method, please refer to the specific introduction in the optional solution A. It is not repeated here. Because the difference between the first network node and the second network node is in the blockchains that store different data, for example, the second network node stores the first blockchain with the first data, the first network node stores the first data The second blockchain of the hash value, therefore, for the scheme in which the central node is the second network node, reference may be made to the description of the optional scheme B that the central node is the first network node, which will not be repeated here.

In the optional solution C, the first network node and the second network node are the same device with a communication or storage function, and the central node is a third-party device. Referring to FIG. 2, in the system architecture shown in FIG. 2, both the first data and the first hash value of the first data are stored in the first network node, and the first network node can receive the first data sent by the device node by Store or generate blocks of the first blockchain, and in the storage phase, the first network node calculates the first hash value of the first data according to the received first data and stores or generates the second block block of the chain.

Based on the optional solution C, further optional, the first blockchain is generated by the first network node that receives the first data, and the second blockchain is generated by multiple first network nodes based on algorithms (such as consensus algorithm) and generated according to the first hash value of the first data. Alternatively, the first blockchain is generated by a plurality of first network nodes based on an algorithm (for example, a consensus algorithm) and according to the first data; the second blockchain is obtained by first calculating the first network node that receives the first data The first hash value is then generated.

In an optional solution, the first blockchain is generated by the first network node that receives the first data, and the second blockchain is generated by multiple first network nodes based on an algorithm (such as a consensus algorithm) In the case of generating according to the first hash value of the first data, when the central node executes step 101, it can first determine a target first network node from a plurality of first network nodes, and then select a target first network node from the target first network node. Obtain the first hash value of the first data in the second blockchain; the central node may directly obtain the first data from the first network node where the first data is located by performing step 102 .

In another optional solution, the first blockchain is generated by multiple first network nodes based on an algorithm (such as a consensus algorithm) and according to the first data; the second blockchain receives the first data The first network node of the first network node first calculates and obtains the first hash value and then generates it. When the central node performs step 101, it can obtain the first hash value from the first network node that receives the first data and calculates and obtains the first hash value. The second block chain is obtained. When step 102 is performed for the central node, a target first network node may be determined from a plurality of first network nodes, and then the first block chain in the first block chain may be obtained from the target first network node. a data.

Wherein, for the solution of determining the target first network node from the multiple first network nodes, reference may be made to the specific introduction in the optional solution A, which will not be repeated here.

In the optional solution D, the central node, the first network node and the second network node are the same device with a communication or storage function. The specific implementation manner of the specific central node performing step 101 and step 102 can be specifically introduced with reference to the optional solution C, which is not repeated here.

In this embodiment of the present application, the central node obtains the first hash value of the first data of the first network node, obtains the first data of the second network node, and calculates the second hash value of the first data, A hash value is compared with the hash value, so as to determine whether the first data is authentic data. This solution can realize effective verification of the stored data, thereby improving the effectiveness of data storage. In addition, in the scenario of separately generating a blockchain related to the first data and a blockchain related to the first hash value of the first data, even if the data of the first blockchain generated from the data are all tampered with , the data in the first blockchain can be verified through the hash value of the second blockchain, thus improving the tamper-proof capability of the data.

Please refer to FIG. 4 , which provides a schematic flowchart of a data processing method according to an embodiment of the present application. As shown in FIG. 4 , an embodiment of the present application involves a first network node, other first network nodes, a second network node, and other The second network node and the device node. Wherein, the first network node and the second network node are different communication devices, and reference may be made to the network architecture shown in FIG. 1 , and the data processing method is jointly completed by the above nodes, wherein the device node executes step 201 In the process to step 210, the device node is any one of a plurality of device nodes that establish a communication connection with the second network node, and further, the device node may execute the first network node that establishes a communication connection. Steps 211 to 216. For the specific execution process, please refer to the following detailed introduction.

201. The device node sends one or more pieces of data information to a second network node.

Wherein, in step 201 of this embodiment of the present application, the data information includes first data, and may also include at least one of the following: an index value of the first data, time information of the first data, sending the The identification of the device node of the data information, the address of the device node and the address of the network node. Optionally, the time information of the first data may be the sending time of the first data or the generation time of the first data, which is not limited in this embodiment of the present application.

It should be noted that, in step 201, the device node sends the first data to the second network node; in step 211, the device node sends the hash value of the first data to the first network node. Steps 201 and 211 are executed in no particular order.

For example, please refer to Table 1, which is a possible data information.

Table 1

Correspondingly, the second network node receives one or more pieces of data information sent by the device node.

202. The second network node generates at least one first transaction information according to the one or more pieces of data information.

Wherein, if there is one piece of data information, the second network node may generate one piece of first transaction information. If there are multiple pieces of data information, the second network node may generate one piece of first transaction information, or generate multiple pieces of first transaction information not greater than the number of data information. Optionally, the first transaction information includes information corresponding to at least one of the following items: transaction identifier, data item, data hash value, node identifier item that generates the first transaction information, data index value item, time Information items, sender items of data, and receiver items of data. The time information item may refer to the sending time of the data or the generating time of the transaction, which is not limited in this embodiment of the present application.

Applicable to all the embodiments of this application, whether it is the first transaction information or other transaction information: assuming that the first transaction information is transaction information representing the first data, wherein the information corresponding to the data item is the first data , the information corresponding to the hash value item of the data is the hash value of the first data, the information corresponding to the index value item of the data is the index value of the data, the information corresponding to the data sending item is the sender address of the data, the receiver of the data The information corresponding to the item is the recipient address of the data, the information corresponding to the identification item of the device node is the identification of the device node, and the information corresponding to the identification item of the node generating the first transaction information is the identification of the network node.

Further, for example, in the case where the second network node generates a first transaction information according to a plurality of data information, the second network node generates a data packet by packaging the plurality of data information, and further One data packet generates a first transaction message. Optionally, the embodiment of the present application does not limit the number of first transaction information generated from multiple pieces of data information, which is less than the number of data information. Since other transaction information may be involved in this embodiment of the present application, here, whether one or more first transaction information generated by the second network node is represented by A1 to distinguish it.

Taking Table 1 as an example, the second network node may generate three transaction information, as shown in Table 2.

Table 2

It should be further noted that, please refer to Table 2A for the case where the hash value item is included in the transaction information.

Table 2A

It should be further noted that, Table 2 may also be identified in the form of Table 2B.

Table 2B

In the first transaction information, the data item refers to the first data, the index value item of the data refers to the index value of the first data, the data sending item refers to the sender address of the data, and the data receiver item refers to the receiver of the data. The address, the identification item of the device node refers to the identification of the device node, or the identification item of the network node refers to the identification of the network node. By analogy, all the examples of this application are used. Table 3, Table 4, Table 5, Table 6 or Table 7 may have corresponding Table 3B, Table 4B, Table 5B, Table 6B or Table 7B similarly, and they will not be repeated. In a word, the first transaction information, the second transaction information and other transaction information involved in this application, the above-mentioned equivalent relationship can all be applied.

Alternatively, the second network node may generate two transaction information, as shown in Table 3.

table 3

For example in Table 3, data 1 in the data item of transaction 1 is the first data, and 100 in the data index value item is the index value item of data 1. And so on, without repeating them one by one.

Alternatively, the second network node may generate two transaction information, as shown in Table 4.

Table 4

203. The second network node sends the generated at least one first transaction information to other second network nodes.

The second network node involved in the embodiment of the present application is any one of multiple second network nodes, and the other second network nodes are other than the one second network node among the multiple second network nodes the second network node.

Correspondingly, any one of the other second network nodes receives the at least one first transaction information A1.

Optionally, the second network node may perform step 204 to generate a block in the first blockchain according to the received at least one first transaction information. The first blockchain in this step is denoted by L1. For example, as shown in Table 5, an optional block generated by the at least one first transaction information is given, and the first transaction information shown in Table 5 is generated by a piece of data information. If the first transaction information is generated by a plurality of first transaction information, please refer to Table 6.

table 5

Table 6

205. At least one second transaction information sent by the other second network node to the second network node.

Among them, in the embodiment of the present application, the second transaction information sent by other second network nodes is represented by A2. It should be noted that the second transaction information A2 and the first transaction information A1 here both contain data items, which can further realize Generating transaction information generated by the data item generates a block in the first blockchain. For example, specifically, the second network node is, for example, the network node A. Based on the data information sent by the device node A, the data information includes a piece of first data, and the first data is data A, for example. Based on the data A, the network node A generates the first transaction information A1 according to the method of generating the first transaction in step 303 . The other second network node is, for example, the network node B based on the data information sent by the device node B received by the network node B, and the data information includes a piece of first data, and the first data is data B, for example. Based on the data B, the network node B generates the second transaction information A2 according to the method of generating the first transaction in the above step 303 .

Optionally, the generation method of the second transaction information is the same as the generation method of the first transaction information in the embodiment of the present application. For details, reference may be made to the detailed descriptions in steps 201 to 202 , which will not be repeated here.

Correspondingly, the second network node receives at least one second transaction information sent by other second network nodes.

206. The second network node generates a block in the first blockchain according to the first transaction information and/or the second transaction information.

Optionally, the second network node broadcasts the generated first blockchain block to other network nodes.

In this embodiment, the generation of the first blockchain block by the second network node is taken as an example. In fact, other network nodes (eg, network node B) may generate blocks of the first blockchain according to the first transaction information B1 and the second transaction information B2. Similarly, other second network nodes (eg, network node B) broadcast the generated first blockchain block to other second network nodes (other network nodes other than network node B, second network nodes). For example, in one case, the second network node generates blocks, and in another case, other network nodes generate blocks. The second network node and other network nodes may determine who generates the ith block (i is a natural number greater than or equal to 1) according to a certain algorithm. In conclusion, according to the above steps, the first network node and other network nodes form the first blockchain.

Wherein, the first block chain in step 206 and the first block chain in step 204 are both composed of blocks generated by transaction information including data items, but the first block chain in the two steps is composed of blocks. According to different transaction information, they are distinguished by the first blockchain L1 and the first blockchain L2.

Further, in the process of generating the blocks of the first blockchain L2, the second network node and other second network nodes need to determine which network to use based on a preset mechanism or algorithm (for example, a consensus algorithm). Nodes generate blocks in the first blockchain L2. Taking the consensus algorithm as an example, the preset consensus algorithm is to calculate which second network node among the multiple second network nodes has the algorithm for writing blocks in the first blockchain L2. The second network node obtains the right to write a block in the first blockchain L2, then the target second network node sends the block to the nodes other than the target second network node among the plurality of second network nodes. The incoming block, so that after each second network receives this block, the block is stored in the respective first blockchain L2. The consensus algorithm can be, but is not limited to, for example, Practical Byzantine Fault Tolerance (PBFT) consensus algorithm, Paxos/Raft algorithm, Proof-of-Work (PoW), Proof-of-Stake (PoS). Regarding the preset mechanism or algorithm, the above content is applicable to all embodiments of the present application.

The algorithm in this application may also be a mechanism, and the algorithm may be a consensus algorithm or other algorithms, which are not limited in this application. In this application, consensus algorithms are used as examples to illustrate the application content. In addition, in the present invention, the preset mechanism or algorithm may be a consensus mechanism or a consensus algorithm for determining which network node has the right to generate blocks, and the preset mechanism or algorithm may also be used for how network nodes generate blocks block algorithm. In short, as the specific definition and use of the mechanism or algorithm, the present invention does not limit too much. The above applies to the full text.

In all the embodiments and application contents of this application, a consensus algorithm may be equivalent to a consensus mechanism, and an algorithm may be equivalent to a mechanism.

For the first algorithm, the second algorithm, the third algorithm, the fourth algorithm, etc. involved in the whole of this application, the two algorithms may be the same algorithm or different algorithms. There is no limitation in this embodiment of the present application.

For the first algorithm, the second algorithm, the third algorithm, the fourth algorithm, etc. involved in the full text of this application, the algorithms may or may not be consensus algorithms. In most of the embodiments, we use the consensus algorithm to illustrate the problem, but this application does not make any limitations on the algorithm.

207. After generating the first blockchain, the second network node sends a first notification message to the device node.

The first notification message is used to notify the device node that the second network node has generated a block of the blockchain according to the data information. Optionally, the first notification message may be sent after any one of the first blockchain L1 and the second blockchain L2 is generated. It should be noted that step 207 is an optional step.

Correspondingly, the device node receives the first notification message sent by the second network node.

210. After generating the first blockchain, the device node will delete the data information.

Optionally, the device node may delete data information whose generation time duration exceeds the first time threshold. The device node may record the generation duration of the data information, and delete it when the generation duration exceeds the first time threshold.

Further, optionally, the second network node executes step 209 to send a first delete message to the device node. Correspondingly, after receiving the first deletion message sent by the second network node, the device node performs step 210 . The first deletion message is an instruction message used to instruct the device node to delete data information. In an optional solution, the second network node may indicate the data information to be deleted in the first deletion message. In another optional solution, the second network node may not specify the data information to be deleted, but is determined by the device node, so that the function of the first deletion message is to notify the device node to delete the data information.

Further, optionally, the second network node performs step 209, which may also be a first delete message sent to the device node after the second network node receives the second delete message sent by the device node. The second deletion message is used by the at least one device node to request deletion of data information. The second deletion message may be a message for the device node to apply to the second network node for permission to delete one or more pieces of data information, so that the second network node may feed back a first deletion message containing the permission or Messages that are not allowed to be deleted. Alternatively, the second deletion message may also be a message for the device node to request the second network node to determine data information that can be deleted for the device node, so that the second network node can determine a piece of data to be deleted. information, and add it to the first delete message and send it to the device node. The manner used for the second deletion message in this embodiment of the present application is not limited.

Next, the interaction process between the first network node and the device node is introduced in detail.

211. The device node sends one or more pieces of data information to the first network device.

Wherein, in step 211 of this embodiment of the present application, the data information includes a hash value of first data, where the first data is content included in the data information in step 201 . The device node sends the first data to the second network node, and sends the hash value of the first data to the first network node, so that the first data and the hash value of the first data are stored separately. If it has been tampered with, the first data can also be verified through the hash value, so as to improve the tamper-proof capability of the data. The data information may further include at least one of the following: an index value of the first data, time information of the first data, an identifier of a device node sending the data information, an address of the device node, and the The address of the network node. Optionally, the time information of the first data may be the sending time of the hash value of the first data or the generation time of the hash value of the first data or the generation time of the first data. The application embodiments do not limit this.

Correspondingly, the first network node receives one or more pieces of data information sent by the device node.

212. The first network node generates at least one first transaction information according to the one or more pieces of data information.

Wherein, the first transaction information here is generated at the first network node, and is represented by B1 to distinguish it. The generation method of the first transaction information B1 is the same as the generation method of the first transaction information A1, and further reference may be made to the detailed description in step 202, which will not be repeated here.

213. The first network node sends the generated at least one first transaction information to other first network nodes.

Optionally, the first network node may execute step 204 to generate a block in the second blockchain according to the received at least one first transaction information. The second blockchain in this step is denoted by L3. For the generation of the blocks of the second blockchain L3, reference may be made to the generation method of the first blockchain L1 in step 203, and details are not repeated here.

215. At least one second transaction information sent by the other first network node to the first network node.

Wherein, the second transaction information in this step is represented by B2.

216. The first network node generates a block in the second blockchain according to the first transaction information and/or the second transaction information.

Optionally, the first network node broadcasts the generated second blockchain block to other network nodes.

In this embodiment, the generation of the second blockchain block by the first network node is taken as an example. In fact, other network nodes (eg, network node B) may generate blocks of the second blockchain according to the first transaction information B1 and the second transaction information B2. Similarly, other network nodes (eg, network node B) broadcast the generated second blockchain block to other network nodes (other network nodes other than network node B, the first network node). For example, in one case, the first network node generates blocks, and in another case, other network nodes generate blocks. The first network node and other network nodes can determine who generates the ith block (i is a natural number greater than or equal to 1) according to a certain algorithm (eg, a consensus algorithm). In conclusion, according to the above steps, the first network node and other network nodes form a second blockchain.

Wherein, the second blockchain in this step is represented by L4. The first network node generates the second blockchain L4 according to the first transaction information B1 and/or the second transaction information B2, and the second network node generates the second blockchain L4 according to the first transaction information A1 and/or the second transaction information. The manner in which A2 generates the first blockchain L2 is the same. For details, please refer to the detailed description in step 206, which will not be repeated here.

Further, optionally, the first network node may also send a first notification message to the device node after generating the second blockchain, for notifying the device node that the first network node has generated the data information according to the data information. The message of the block of the blockchain.

Further, the first network node can send the hash value of the first data to the central node, and the second network node can send the first data to the central node, so that the central node can calculate the hash value of the first data. The second hash value, and the second hash value is compared with the first hash value to check whether the first data has been tampered with, whether it is trusted data, etc. The specific implementation process can refer to the implementation shown in FIG. 1 . The specific description of the example will not be repeated here.

Further optionally, both the first network node or the second network node may determine the block to be deleted from the target blockchain.

Wherein, for the first network node, the target blockchain is the second blockchain L3 or the second blockchain L4 in the first network node; for the second network node, the target blockchain The blockchain is the first blockchain L1 or the first blockchain L2 in the second network node.

An optional solution for the first network node or the second network node to determine the block to be deleted may be: taking the second network node as an example, the second network node may determine from the target blockchain according to preset deletion rules Blocks to be deleted. Wherein, the preset deletion rule may include, but is not limited to, the number of blocks stored in the target blockchain by the second network node is greater than a preset threshold, or the block to be deleted is the generation time duration exceeding the time period A block with a threshold value, or the block to be deleted is a block with a block sequence number smaller than the sequence number threshold value. After the block to be deleted is deleted, the first network node or the second network node may record the content of the block header of the block to be deleted.

Further optionally, the first network node or the second network node may send a plurality of transaction information contained in the blocks of the generated blockchain to the upper-level network node. Optionally, after determining the block to be deleted, the first network node or the second network node may send at least one transaction information included in the block to be deleted to the upper-level network node. Optionally, the original storage location information of the at least one transaction information may be recorded in the upper-level network node. The upper-level network node of the first network node and the upper-level network node of the second network node may be the same or different, which is not limited in this embodiment of the present application.

It should be noted that the one or more pieces of data information sent by the device node to the first network node in step 211 include the first hash value of the first data. Specifically, the device node calculates and obtains the data according to the first data. the first hash value of the first data, and sending data information including the first hash value of the first data to the first network node. Alternatively, one or more pieces of data information sent by the device node to the first network data node may include first data, and after the first network node receives the data information, according to the first data included in the data information, The calculation obtains the first hash value of the first data. Alternatively, the one or more pieces of data information sent by the device node to the first network data node include both the first data and the first hash value of the first data, which is not limited in this embodiment of the present application.

In this embodiment, the content of the present application is described by taking the first network node and other first network nodes forming a second blockchain, and the second network node and other second network nodes forming a first blockchain as an example. The device nodes may be multiple device nodes to perform steps 201 and 211 . In addition, in fact, in the embodiment shown in FIG. 4 , only the second network node and other second network nodes may form the first blockchain, and after the first network node receives the data information of the device node (step 211 ), You can just keep storing the received data information without forming a second blockchain. Alternatively, in the embodiment shown in FIG. 4 , only the first network node and other first network nodes may form a second blockchain, and after receiving the data information of the device node (step 201 ), the second network node may only The received data information is continuously stored, and the first blockchain is not formed.

In the embodiment of the present application, by sending one or more first data in the device node to other network nodes for storage, the storage pressure of the device node can be relieved. In addition, the first network node and the second network node are respectively A block chain related to the first data and a block chain related to the first hash value of the first data are generated, and the data and the hash value are respectively stored through the block chain, even if the first area generated according to the data is used. When all the data in the blockchain is tampered with, the data in the first blockchain can be verified through the hash value of the second blockchain, thus improving the tamper-proof capability of the data.

Please refer to FIG. 5 , which provides a schematic flowchart of another data processing method in an embodiment of the present application. As shown in FIG. 5 , the embodiment of the present application involves a first network node, other first network nodes, and device nodes. Referring to the network architecture shown in FIG. 2, the data processing method is jointly completed by the above nodes, wherein, in the process of executing steps 301 to 312 by the device node, the device node is the same as the first node. Any one of a plurality of device nodes to which a network node establishes a communication connection. It should be noted that, in this embodiment of the present application, the steps performed by the first network node and other first network nodes may also be performed by the second network node and other second network nodes. The embodiment shown in FIG. 5 is The description is made by taking the first network node as an example. For the specific execution process, please refer to the following detailed introduction.

301. The device node sends one or more pieces of data information to the first network node.

The device node may send data information including the first data to the first network node. Alternatively, the device node may send data information including the first data and the first hash value of the first data to the first network node. On the basis of the above two optional data information, the data information may further include at least one of the following: the index value of the first data, the time information of the first data, the device sending the data information The identity of the node, the address of the device node and the address of the first network node that receives the data information. Optionally, the time information of the first data may be the sending time of the first data or the generation time of the first data, which is not limited in this embodiment of the present application.

Optionally, for the representation form of one or more data information, reference may be made to the detailed description of the data information in step 201 in the embodiment shown in FIG. 4 , which will not be repeated here.

302. The first network node calculates a first hash value of the first data.

Wherein, in the case that the first hash value of the first data is not included in the data information, the first network node executes step 302 . In the case where the data information includes the first hash value of the first data, the first network node may calculate the first hash value of the first data, and compare the carried first hash value to determine the first hash value of the first data. Whether a piece of data has been tampered with during the transmission process, if the two are not the same, it is determined that the first data has been tampered with, the device node can be notified of a notification message that the first data has been tampered with, and the subsequent steps of this embodiment of the present application are not performed, so that The security of the first data transmission is enhanced.

In conclusion, the first network node may obtain or calculate a first hash value corresponding to each first data from the data information. It can be understood that, in addition to receiving one or more pieces of data information sent by the device node, the first network node can also receive one or more pieces of data information sent by other device nodes.

For example, as shown in Table 7, a plurality of first hash values determined by the first network node are included. In Table 7, the data index value may be the index value of the first data, or may be the index value of the first hash value corresponding to the index value of the first data. Either way, in the case of searching for the first data and the first hash value of the first data respectively, the index value of the first data or the combination of the index value of the first data and the first hash value can be used. The correspondence between the index values can be searched for the first data and the first hash value corresponding to the first data.

Table 7

303. The first network node generates first transaction information B1 according to the first hash value.

The first transaction information is generated by using a hash value, and in this embodiment of the present application, B1 is used to represent the first transaction information generated in this step to distinguish.

Further, if the number of first hash values is one, the first network node may generate one first transaction information B1. For example, the first data may be data 1, data 2, data 3 . . . or data n. Different data have different hash values, so for example, the hash value of data 1 is hash value 1, the hash value of data 2 is hash value 2, and so on. If the number of the first hash values is multiple, the first network node may generate at least one first transaction information B1. Optionally, the first transaction information includes information corresponding to at least one of the following items: transaction identifier, data item, data hash value, node identifier item that generates the first transaction information, data index value item, time Information items, sender items of data, and receiver items of data. The time information item may refer to, for example, the sending time of the data or the generating time of the transaction, which is not limited in this embodiment of the present application.

Table 8

Taking the first hash value included in Table 7 as an example, the first network node may generate the first transaction information B1 as shown in Table 8.

Or, taking the first hash value included in Table 7 as an example, the first network node may generate the first transaction information B1 shown in Table 9. Wherein, Tx may be the time when the data packet 1 is generated or the time when the transaction 1 is generated, which is not limited in this embodiment of the present application. Wherein, the first network node regards the data hash values of the plurality of data as a data packet, and the data packet is regarded as the data item content of the transaction. Regarding addresses, specifically, Table 9 is illustrated as an example, the address of the receiver can be, for example, the address of the first network node, and the address of the sender, for example, the data hash value of the data packet 1 all comes from the device node 1, that is Let the sender address be the address of device node 1.

Table 9

Among them, the content of the data packet can be referred to as shown in Table 10.

Table 10

304. The first network node sends the at least one first transaction information to other first network nodes.

Wherein, the first network node involved in the embodiment of the present application is any one of multiple first network nodes, and the other first network nodes are other than the one first network node among the multiple first network nodes The first network node.

Correspondingly, any one of the other first network nodes receives the at least one first transaction information B1.

305. At least one second transaction information sent by the other first network node to the first network node.

Among them, in the embodiment of the present application, the second transaction information sent by other first network nodes is represented by B2. It should be noted that both the second transaction information B2 and the first transaction information B1 here contain the hash value item of the data. , and then can realize the generation of transaction information generated by the hash value item of the data to generate the block in the second block chain. For example, specifically, the first network node is, for example, the network node A. Based on the data information sent by the device node A, the data information includes a piece of first data, for example, data A. The network node A obtains the hash value A of the data A according to the data A (for example, the hash value A is calculated by using the data A). Based on the hash value A, the first transaction information B1 is generated according to the method of generating the first transaction in the above step 303 . The other first network node is, for example, the network node B based on the data information sent by the device node B received by the network node B, and the data information includes a piece of first data, and the first data is data B, for example. The network node B obtains the hash value B of the data B according to the data B (using the data B to calculate the hash value B). Based on the hash value B, the second transaction information B2 is generated according to the method of generating the first transaction in the above step 303 .

Optionally, the generation method of the second transaction information is the same as the generation method of the first transaction information in this embodiment of the present application. For details, reference may be made to the detailed descriptions in steps 301 to 203 , which will not be repeated here.

Correspondingly, the first network node receives at least one second transaction information sent by other first network nodes.

306. The first network node generates a block in the second blockchain according to the first transaction information and/or the second transaction information.

Wherein, the first network node generates a block in the second blockchain according to the first transaction information B1 and the received second transaction information B2. Optionally, the first network node broadcasts the generated second blockchain block to other network nodes.

In this embodiment, the generation of the second blockchain block by the first network node is taken as an example. In fact, other network nodes (eg, network node B) may generate blocks of the second blockchain according to the first transaction information B1 and the second transaction information B2. Similarly, other network nodes (eg, network node B) broadcast the generated second blockchain block to other network nodes (other network nodes other than network node B, the first network node). For the generation method of the second blockchain L4 in the embodiment of the present application, reference may be made to the generation method of the second blockchain L4 in step 216 in the embodiment shown in FIG. 4 , and details are not repeated here.

307. The first network node generates first transaction information A1 according to the first data.

Step 307 and step 302 are parallel steps, and the order of execution is not specific.

308. The first network node generates a block of the first blockchain L1 according to the first transaction information A1.

Wherein, in steps 307 and 308, the first network node generates the first transaction information according to the first data included in the data information received from the device node. The specific implementation may be, for example, generating the first transaction A1(1) according to the first data 1 sent by the device node 1, generating the first transaction A1(2) according to the first data 2 sent by the device node 2, and generating the first transaction A1(2) according to the first data 3 A first transaction A2(3) is generated. Or, the first network node generates the first transaction A1 according to the data packet composed of the first data 1, the first data 2, and the first data 3. In a word, the first network node generates at least one first transaction information according to the first data contained in one or more data information, and generates a block of the first blockchain according to the generated at least one transaction information. For a specific implementation manner, reference may be made to the detailed description of steps 212 to 214 in the embodiment shown in FIG. 4 , which will not be repeated here.

Specifically, the first network node independently generates all the blocks of the first blockchain to independently form a first blockchain. Specifically, the network node can send the blocks to itself, and/or save the blocks that it continuously generates.

Specifically, the first network node generates a block of the first blockchain based on the first algorithm according to at least one first transaction information A1. The first algorithm may be equivalent to the first mechanism. The first algorithm can be used to determine which network node generates the block of the first blockchain, so the first algorithm, for example, can be: the first network node is the only one that generates the first blockchain block. node. Alternatively, the first algorithm may also be used for an algorithm of how the first network node generates the block.

Similarly, for the first algorithm, the third algorithm, the fifth algorithm, and the seventh algorithm mentioned in the claims, the algorithms are equivalent to the mechanism, and the algorithm may be a specific algorithm or a very simple mechanism. For example, a certain node is specified as the only node that generates the block of the blockchain, or the network node directly generates the block according to the transaction, and so on. In short, as the specific definition and usage of the mechanism or algorithm, the present invention does not limit too much.

309. After the first network node generates the blockchain, send a first notification message to the device node.

The first notification message is used to notify the device node that the first network node has generated a block of the blockchain according to the data information. Optionally, the first notification message may be sent after any one of the first blockchain L1 and the second blockchain L4 is generated. It should be noted that step 309 is an optional step.

Correspondingly, the device node receives the first notification message sent by the first network node.

310. The device node sends the second delete message to the first network device.

The second deletion message is used by the at least one device node to request deletion of data information.

311. The first network node sends a first delete message to the device node.

The first deletion message is an instruction message used to instruct the device node to delete data information.

312. The device node deletes the data information.

Wherein, optionally, the device node may delete the data information according to a deletion condition. For example, the data information whose time exceeds the threshold 1 is deleted. For example, the device node deletes data information whose storage time exceeds the threshold 1.

It should be noted that step 310, step 311, and step 312 are all optional steps, and the specific implementation can refer to the detailed description of step 208, step 209 and step 210 in the embodiment shown in FIG. 4, which will not be repeated here.

Further optionally, the first network node may determine the block to be deleted from the target blockchain. The target blockchain is the first blockchain L1 or the second blockchain L4 in the first network node.

An optional solution for the first network node to determine the block to be deleted may be: taking the first network node as an example, the first network node may determine the block to be deleted from the target blockchain according to a preset deletion rule. Wherein, the preset deletion rule may include, but is not limited to, the number of blocks stored in the target blockchain by the first network node is greater than a preset threshold, or the block to be deleted is the generation time duration exceeding the time period A block with a threshold value, or the block to be deleted is a block with a block sequence number smaller than the sequence number threshold value. After deleting the block to be deleted, the first network node may record the content of the block header of the block to be deleted.

Further optionally, the first network node may send a plurality of transaction information contained in the blocks of the generated blockchain to the upper-level network node. Optionally, after determining the block to be deleted, the first network node or the first network node may send at least one transaction information included in the block to be deleted to the upper-level network node. Optionally, the original storage location information of the at least one transaction information may be recorded in the upper-level network node.

Further, the first network node may send the hash value of the first data and the first data to the central node, so that the central node calculates the second hash value of the first data, and sends the second hash value to the central node. The value and the first hash value are compared to check whether the first data has been tampered with, whether it is trusted data, etc. The specific implementation process can refer to the specific description of the embodiment of the system shown in FIG. 2, which will not be repeated here. .

In this embodiment, the first network node and other first network nodes form the second blockchain, and the first network node generates the first transaction according to the received data information to form the first blockchain. The device node may be at least one device node to perform step 301. In addition, in the second embodiment, only the first network node and other first network nodes may form a second blockchain, and the first network node receives the device After the data information of the node (step 301), steps 307 and 308 are not performed, and the received data information can be stored continuously without forming the first blockchain.

In this embodiment of the present application, by sending one or more first data in the device node to the first network node for storage, the storage pressure of the device node can be relieved. A block chain of data and a block chain about the first hash value of the first data, realizes that the data and the hash value are stored separately through the block chain, even if the data of the first block chain is generated according to the data In the case of tampering, the data in the first blockchain can be verified through the hash value of the second blockchain, thus improving the tamper-proof capability of the data.

Referring to FIG. 6 , a schematic flowchart of another data processing method is provided in this embodiment of the present application. As shown in FIG. 6 , the embodiment of the present application involves a first network node, other first network nodes, device nodes, and other device nodes. Referring to the network architecture shown in FIG. 2, the data processing method is jointly completed by the above nodes, wherein, in the process of performing steps 401 to 413 on the device node, the device node is the same as the first node. Any one of a plurality of device nodes to which a network node establishes a communication connection. For the specific execution process, please refer to the following detailed introduction.

401. The device node generates at least one second transaction information according to one or more pieces of data information.

Wherein, the second transaction information includes information corresponding to the data item, such as first data. Optionally, the second transaction information may further include at least one item of corresponding information: data index value item, data hash value item, time information item, data sender item and data receiver item. Wherein, if the hash value item of the data is included, the information corresponding to the item is the first hash value calculated by the device node for the first data. The time information item may refer to the generation time of the first data or the generation time of the second transaction information, which is not limited in this embodiment of the present application. In the embodiment of the present application, the second transaction information generated by the device node is denoted by C1 to distinguish it.

402. The device node sends the at least one second transaction information to the first network node.

Correspondingly, the first network node receives the at least one second transaction information.

402a. Other device nodes send second transaction information to the first network node.

There are multiple device nodes in the network. In step 402, the first network node receives the second transaction information (represented by C1) sent by the device node, and the first network node can also receive and communicate with the first network node. The second transaction information sent by other device nodes that establish a communication connection by a network node, and the second transaction information sent by other devices are represented by C2 to distinguish them. For the content included in the second transaction information, reference may be made to the detailed introduction of the content included in the second transaction information in step 401, which is not repeated here.

403. The first network node generates a block of the first blockchain according to the at least one second transaction information.

Wherein, the first control node generates the blockchain according to the second transaction information sent by multiple device nodes connected to it. Based on the fact that the second transaction information includes data items, the first network node may generate a block of the first blockchain L1.

Specifically, the first network node independently generates all the blocks of the first blockchain to independently form a first blockchain. Specifically, the network node can send the blocks to itself, and/or save the blocks that it continuously generates.

Specifically, the first network node generates a block of the first blockchain based on the first algorithm according to at least one second transaction information. The first algorithm may be equivalent to the first mechanism. The first algorithm is used to determine which network node generates the block of the first blockchain, so the first algorithm, for example, can be: the first network node is the only node that generates the first blockchain block .

404. The first network node determines at least one piece of included first data according to at least one piece of second transaction information. Specifically, the first network node determines the first first data C1 from the first data C1 included in the second transaction information C1 according to the first second transaction information (C1); the first network node The second first data C2 is determined according to the second second transaction information (C2); the first network node determines the third first data C3 according to the third second transaction information (C3), and so on. To sum up, the first network node determines the included at least one first data according to the at least one second transaction information.

Wherein, the first network node may determine a plurality of data information according to the transaction information sent by the device node, the data information includes first data, and may also include at least one of the following: The index value, the time information of the first data, the identifier of the device node sending the data information, the address of the device node, and the address of the network node.

405. The first network node calculates a first hash value of the first data.

Optionally, if each transaction information sent by the device node includes a hash value item of data, the first network node may not perform step 405.

406. The first network node generates first transaction information B1 according to the first hash value.

Steps 405 and 403 may be parallel steps, and the sequence is not limited. Similarly, step 406 and step 403 may be parallel steps, and the sequence is not limited.

Wherein, the first network node determines a plurality of data information from the transaction information sent by the device node. After the first network node calculates the first hash value of the first data in the data information through step 405, it can determine the time information item and the value of the data according to other information in the data information corresponding to the first data. Index value item, sender item of data, and receiver item of data.

407. The first network node sends the generated at least one first transaction information B1 to other first network nodes.

408. The first network node may also receive at least one second transaction information B2 sent by other first network nodes.

409. The first network node generates a block of the second blockchain L4 according to at least one first transaction information B1 and/or at least one second transaction information B2. Alternatively, the first network node and other first network nodes, based on an algorithm, generate a second blockchain L4 according to at least one first transaction information B1 and/or at least one second transaction information B2.

Regarding "the first network node generates the blocks of the second blockchain L4 according to at least one first transaction information B1 and/or at least one second transaction information B2.": In this embodiment, the Take the first network node to generate the first blockchain block as an example. In fact, other network nodes (eg, network node B) may generate blocks of the first blockchain according to the first transaction information B1 and the second transaction information B2. Similarly, other first network nodes (eg, network node B) broadcast the generated first blockchain block to other first network nodes (other network nodes other than network node B, first network node). For example, in one case, the first network node generates blocks, and in another case, other network nodes generate blocks. The first network node and other network nodes may determine who generates the ith block (i is a natural number greater than or equal to 1) according to a certain algorithm. In conclusion, according to the above steps, the first network node and other network nodes form the first blockchain L4. Therefore, the first network node and other first network nodes, based on an algorithm, generate a second blockchain L4 according to at least one first transaction information B1 and/or at least one second transaction information B2.

Subsequent optional steps: After completing the "generate block of the second blockchain L4", the first network node broadcasts the generated first blockchain block to other network nodes.

Among them, steps 407 to 409 are to generate a second blockchain about the hash value item, and are generated by a plurality of first network nodes based on an algorithm. Here, L4 is used to represent the second blockchain. Specifically, the second blockchain is generated. For the execution process of the blockchain L4, reference may be made to the detailed description of step 216 in the embodiment shown in FIG. 4 , which will not be repeated here.

410. After the first network node generates the blockchain, send a first notification message to the device node.

The first notification message is used to notify the device node that the first network node has generated a block of the blockchain according to the data information. Optionally, the first notification message may be sent after any one of the first blockchain L1 and the second blockchain L4 is generated. It should be noted that step 410 is an optional step.

Correspondingly, the device node receives the first notification message sent by the first network node.

411. The device node sends the second delete message to the first network device.

The second deletion message is used by the at least one device node to request deletion of data information.

412. The first network node sends a first delete message to the device node.

The first deletion message is an instruction message used to instruct the device node to delete data information.

413, the device node will delete the data information.

It should be noted that step 411, step 412, and step 413 are all optional steps, and the specific implementation can refer to the detailed description of step 208, step 209 and step 210 in the embodiment shown in FIG. 4, which will not be repeated here.

Further optionally, the first network node may determine the block to be deleted from the target blockchain. The target blockchain is the first blockchain L1 or the second blockchain L4 in the first network node.

An optional solution for the first network node to determine the block to be deleted may be: the first network node may determine the block to be deleted from the target blockchain according to a preset deletion rule. Wherein, the preset deletion rule may include, but is not limited to, the number of blocks stored in the target blockchain by the first network node is greater than a preset threshold, or the block to be deleted is the generation time duration exceeding the time period A block with a threshold value, or the block to be deleted is a block with a block sequence number smaller than the sequence number threshold value. After deleting the block to be deleted, the first network node may record the content of the block header of the block to be deleted.

Further optionally, the first network node may send a plurality of transaction information contained in the blocks of the generated blockchain to the upper-level network node. Optionally, after determining the block to be deleted, the first network node or the first network node may send at least one transaction information included in the block to be deleted to the upper-level network node. Optionally, the original storage location information of the at least one transaction information may be recorded in the upper-level network node.

Further, the first network node may send the hash value of the first data and the first data to the central node, so that the central node calculates the second hash value of the first data, and sends the second hash value to the central node. The value and the first hash value are compared to check whether the first data has been tampered with, whether it is trusted data, etc. The specific implementation process can refer to the specific description of the embodiment of the system shown in FIG. 2, which will not be repeated here. .

Further optionally, the first network node obtains the first hash value of the first data from the second blockchain; the first network node obtains the first hash value from the first blockchain. data, and calculate a second hash value of the first data; the first network node compares the first hash value with the second hash value; if the first hash value If the value is the same as the second hash value, the first network node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that the first data is The first hash value is a trusted hash value; or, if the first hash value is different from the second hash value, the first network node determines that the first data is untrusted data or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value.

In this embodiment of the present application, the device node may send one or more transaction information about the data information to the first network node for storage, and the first network node generates a block chain about the first data and a block chain about the first data respectively at the first network node. A block chain of the first hash value of the data realizes that the data and the hash value are stored separately through the block chain. Even if all the data of the first block chain generated by the data is tampered with, it can be The data in the first blockchain is verified through the hash value of the second blockchain, thus improving the tamper-proof capability of the data.

Please refer to FIG. 7 , which is a schematic flowchart of another data processing method provided in this embodiment of the present application. As shown in FIG. 7 , the embodiment of the present application involves a first network node, other first network nodes, device nodes, and other device nodes. Referring to the network architecture shown in FIG. 2, the data processing method is jointly completed by the above nodes, wherein, in the process of executing steps 501 to 514 on the device node, the device node is the same as the first node. Any one of a plurality of device nodes to which a network node establishes a communication connection. For the specific execution process, please refer to the following detailed introduction.

501. The device node generates at least one second transaction information according to one or more pieces of data information.

Wherein, the second transaction information includes information corresponding to the data item, such as first data. Optionally, the second transaction information may further include at least one item of corresponding information: data index value item, data hash value item, time information item, data sender item and data receiver item. Wherein, if the hash value item of the data is included, the information corresponding to the item is the first hash value calculated by the device node for the first data. The time information item may refer to the generation time of the first data or the generation time of the second transaction information, which is not limited in this embodiment of the present application. In the embodiment of the present application, the second transaction information generated by the device node is denoted by C1 to distinguish it.

502. The device node sends the at least one second transaction information to the first network node and other device nodes.

Correspondingly, the first network node receives the at least one second transaction information C1. The other device nodes receive the at least one second transaction information C1. Wherein, the other device nodes and the device nodes have established communication connections with the first network node, and each device node can also communicate with each other.

503. The other device node sends at least one second transaction information C2 to the device node and the first network node.

Correspondingly, the device node receives at least one second transaction information C2 sent by other device nodes.

The first network node receives at least one second transaction information C2 sent by other device nodes.

Specifically, in step 503, other device nodes may broadcast the second transaction information C2, whereby the device node receives the second transaction information C2, and the first network node receives the second transaction information C2. Therefore, for the device node side, the device node receives at least one second transaction information C2 sent by other device nodes.

The device node can receive the second transaction information sent by other device nodes, and the second transaction information sent by other devices is represented by C2. For the content included in the second transaction information, reference may be made to the detailed introduction of the content included in the second transaction information in step 501, which is not repeated here.

504. The device node generates a block of the second blockchain L2 according to the at least one second transaction information. Alternatively, the device node, other device nodes and the first network node generate the first blockchain L2 based on the second transaction information based on an algorithm.

Explanation on "The device node generates a block of the second blockchain L2 according to at least one second transaction information.": In this embodiment, the device node is used to generate the second blockchain block For example. In fact, other device nodes (eg, device node B) or the first network node may generate blocks of the second blockchain according to the second transaction information. Similarly, other said device nodes (eg network node B) or the first network node broadcasts the generated second blockchain block to other said device nodes (other network nodes except network node B, said device node). Therefore, for example, in one case, the device node generates blocks, and in another case, other device nodes generate blocks or the first network node generates blocks. The device node, other device nodes and the first network node may determine who generates the ith block (i is a natural number greater than or equal to 1) according to a certain algorithm. In conclusion, according to the above steps, the device node, other device nodes and the first network node form a second blockchain L2. Therefore, the device node, other device nodes and the first network node, based on an algorithm, generate a first blockchain L2 according to at least one second transaction information C1 and/or at least one first transaction information C2.

Subsequent optional steps: After completing "generating the block of the second blockchain L2", the device node broadcasts the generated first blockchain block to other device nodes and the first network node.

For the specific execution process of generating the second blockchain L2, reference may be made to the detailed description of step 216 in the embodiment shown in FIG. 4 , which will not be repeated here.

505. The first network node determines at least one piece of included first data according to at least one piece of second transaction information.

After step 502 and/or step 503, the first network node may execute step 505.

506. The first network node calculates a first hash value of the first data.

507. The first network node generates first transaction information B1 according to the first hash value.

508. The first network node sends the generated at least one first transaction information B1 to other first network nodes.

509. The first network node may also receive at least one second transaction information B2 sent by other first network nodes.

510. The first network node and other first network nodes, based on an algorithm, generate blocks of the second blockchain L4 according to at least one first transaction information B1 and/or at least one second transaction information B2.

In this embodiment, the generation of the first blockchain block by the first network node is taken as an example. In fact, other network nodes (eg, network node B) may generate blocks of the first blockchain according to the first transaction information B1 and the second transaction information B2. Similarly, other first network nodes (eg, network node B) broadcast the generated first blockchain block to other first network nodes (other network nodes other than network node B, first network node). For example, in one case, the first network node generates blocks, and in the other case, other network nodes generate blocks. The first network node and other network nodes may determine who generates the ith block (i is a natural number greater than or equal to 1) according to a certain algorithm. In conclusion, according to the above steps, the first network node and other network nodes form the first blockchain L4.

Optional step after "generate block": Optionally, the first network node broadcasts the generated first blockchain block to other network nodes.

The contents of steps 505 to 510 are the same as those of steps 404 to 409 in the embodiment shown in FIG. 6 . For details, reference may be made to the specific introduction of the embodiment shown in FIG. 6 , which will not be repeated here.

511. After the first network node generates the blockchain, send a first notification message to the device node.

Correspondingly, the device node receives the first notification message sent by the first network node.

512. The device node sends the second delete message to the first network device.

Wherein, the second deletion message is used by the at least one device node to request to delete a block.

513. The first network node deletes the block to be deleted.

Wherein, after generating the first block chain L2 or the second block chain L4, the first network node may determine the block to be deleted, and delete the block to be deleted. Wherein, the first network node may determine the block to be deleted from the target blockchain according to a preset deletion rule. For the first network node, the target blockchain is the first blockchain L2 or the second blockchain L4. The preset deletion rules may include, but are not limited to, the number of blocks stored in the target blockchain by the first network node is greater than a preset threshold, or the blocks to be deleted are those whose generation time and duration exceed the time threshold. block, or the block to be deleted is a block whose block serial number is less than the serial number threshold. After deleting the block to be deleted, the first network node or the first network node may record the content of the block header of the block to be deleted.

Further optionally, the first network node may send a plurality of transaction information contained in the blocks of the generated blockchain to the upper-level network node. Optionally, after determining the block to be deleted, the first network node or the second network node may send at least one transaction information included in the block to be deleted to the upper-level network node. Optionally, the original storage location information of the at least one transaction information may be recorded in the upper-level network node.

Optionally, the first network node may also perform step 513 after receiving the second delete message.

514. The first network node sends a first delete message to the device node.

The first deletion message is an instruction message for instructing the device node to delete a block. In an optional solution, the first network node may indicate the block to be deleted in the first deletion message, and the optional block to be deleted may be the area to be deleted deleted by the first network node in step 513. piece. In another optional solution, the first network node may not specify the block to be deleted, and the device node can determine the block to be deleted by itself, so that the function of the first deletion message is to notify the device node to delete the data. message.

515, the device node will delete the block.

Optionally, the device node may execute the step to delete the block in the first blockchain L2 without executing the step 512 and receiving the first deletion message in the step 514 . Specifically, the block to be deleted may be determined from the first blockchain L2 according to the preset deletion rule. Wherein, the preset deletion rule may include, but is not limited to, the number of blocks stored in the target blockchain by the first network node is greater than a preset threshold, or the block to be deleted is the generation time duration exceeding the time period A block with a threshold value, or the block to be deleted is a block with a block sequence number smaller than the sequence number threshold value.

Optionally, the device node may perform step 515 after receiving the first delete message in step 514 . If the first deletion message carries the block to be deleted, the device node may delete the carried block; if the first deletion message does not carry the block to be deleted, the The device node may determine the block to be deleted according to the first optional solution.

Further optionally, after deleting the block in the blockchain, the device node may record the block header content of the block to be deleted. The device node may send at least one transaction information contained in the block to be deleted to the upper-level node. Optionally, the original storage location information of the at least one transaction information may be recorded in the upper-level node. In this embodiment of the present application, the upper-level node may be the first network node, or may be another node, which is not limited in this embodiment of the present application.

By executing step 515 to delete the block in the blockchain, the storage pressure of the device node can be reduced.

Further, the first network node or the device node can send the first data to the central node, and the first network node can send the hash value of the first data to the central node, so that the central node can calculate all the data. Describe the second hash value of the first data, and compare the second hash value with the first hash value to check whether the first data has been tampered with, whether it is trusted data, etc. The specific implementation process can refer to The specific description of the embodiment of the system shown in FIG. 2 will not be repeated here.

Further optionally, the device node obtains the first hash value of the first data from the second blockchain; the device node obtains the first data from the first blockchain, and Calculate the second hash value of the first data; the device node compares the first hash value with the second hash value; if the first hash value and the second hash value If the hash values are the same, the device node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that the first hash value of the first data is trusted or, if the first hash value is different from the second hash value, the device node determines that the first data is untrusted data; or, determines that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value.

Further optionally, the first network node obtains the first hash value of the first data from the second blockchain; the first network node obtains the first hash value from the first blockchain. data, and calculate a second hash value of the first data; the first network node compares the first hash value with the second hash value; if the first hash value If the value is the same as the second hash value, the first network node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that the first data is The first hash value is a trusted hash value; or, if the first hash value is different from the second hash value, the first network node determines that the first data is untrusted data or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value.

In this embodiment of the present application, the device node can send one or more transaction information about the data information to the first network node for storage, and can jointly generate a blockchain about the first data with the first network node. In addition, A block chain about the first hash value of the first data is generated at the first network node, so that the data and the hash value are stored separately through the block chain, even if all the first block chain generated by the data is used. In the case that all data has been tampered with, the data in the first blockchain can be verified through the hash value of the second blockchain, thus improving the tamper-proof capability of the data.

FIG. 8 provides a modular schematic diagram of a central node according to an embodiment of the present application. The central node in this embodiment of the present application may be the central node described in any of the method embodiments shown in FIG. 3 . Therefore, content is repeated in the method embodiment shown in FIG. 3 , and details may not be repeated in this embodiment.

As shown in FIG. 8 , the central node 1 in this embodiment of the present application may include: an acquisition module 11 , a calculation module 12 , a comparison module 13 , and a determination module 14 . Optionally, the central node 1 further includes a generating module 15 .

an obtaining module 11, configured to obtain the first hash value of the first data from the first network node;

a calculation module 12, configured to obtain the first data from the second network node, and calculate a second hash value of the first data;

A comparison module 13, configured to compare the first hash value obtained by the obtaining module 11 with the second hash value calculated by the calculation module 12;

A determination module 14, configured to determine that the first data is trusted data if the comparison module 13 determines that the first hash value is the same as the second hash value; or, determine the first data The data has not been tampered with; or, it is determined that the first hash value of the first data is a trusted hash value.

Optionally, the determining module 14 is further configured to determine that the first data is untrusted data if the comparison module 13 determines that the first hash value is different from the second hash value or, it is determined that the first data has been tampered with; or, it is determined that the first hash value of the first data is an untrusted hash value.

Optionally, the obtaining module 11 is specifically configured to: obtain the first hash value corresponding to the first data from the second blockchain of the first network node; wherein, the second blockchain is composed of data containing data The hash value of the item's transaction information is composed of blocks generated.

Optionally, the computing module 12 is specifically configured to: obtain the first data from the first blockchain of the second network node, wherein the first blockchain is generated from transaction information including data items of blocks.

Optionally, the obtaining module 11 is further configured to obtain from the first network node at least one of the following associated information of the first data: the index value of the first data, the time information of the first data, The identification of the device node sending the first data, the address for sending the first data, and the address for receiving the first data.

Optionally, the obtaining module 11 is further configured to obtain from the second network node at least one of the following associated information of the first hash value of the first data: the index value of the first data, the first hash value of the first data Time information of a piece of data, an identifier of a device node that sends the first data, an address for sending the first data, and an address for receiving the first data.

Optionally, the determining module 14 is further configured to select a first network node and determine it as the target first network node;

The obtaining module 11 is specifically configured to obtain the first hash value of the first data from the second blockchain of the target first network node.

Optionally, in terms of selecting a first network node and determining it as a target first network node, the determining module 14 is specifically configured to select a first network node that satisfies the first legal condition from at least one first network node as a target. a first network node;

The first legal condition is that the number of nodes that are the same as the first hash value of the first data of the second blockchain of the target first network node exceeds a first threshold.

Optionally, the determining module 14 is further configured to select a second network node and determine it as the target second network node.

The obtaining module 11 is specifically configured to obtain the first data from the first blockchain of the target second network node.

Optionally, in terms of selecting a second network node and determining it as the target second network node, the determining module is specifically configured to select a network node that satisfies the second legal condition from the at least one second network node as the second target network. node;

The second legal condition is that the number of network nodes that are identical to the first data of the first blockchain of the target second network node exceeds a second threshold.

Optionally, it also includes: a generating module 15, configured to determine that the i-th transaction information of the third blockchain satisfies the generation condition if it is determined that the first data is trusted data, and generate the i-th transaction information of the third blockchain. i transaction information; or

The generation module 15 is further configured to determine that the i-th transaction information of the third blockchain does not meet the generation condition if it is determined that the first data is untrusted data, and the third area is not generated. The i-th transaction information of the blockchain; or

The generation module 15 is further configured to, if it is determined that the first data is untrusted data, determine that the jth transaction information of the third blockchain satisfies the generation condition, and generate the jth transaction information of the third blockchain. j transaction information.

The central node in the embodiment shown in FIG. 8 may be implemented by the central node shown in FIG. 9 . As shown in FIG. 9 , an embodiment of the present application provides a schematic structural diagram of a central node. The central node 1000 shown in FIG. 9 includes a processor 1001 and a transceiver 1004 . The processor 1001 is connected to the transceiver 1004, for example, through a bus 1002. Optionally, the central node 1000 may further include a memory 1003 . It should be noted that, in practical applications, the number of transceivers 1004 is at least one, and the structure of the central node 1000 does not constitute a limitation to the embodiments of the present application.

The processor 1001 is used in the embodiment of the present application to implement the functions of the calculation module 12 , the comparison module 13 , the determination module 14 , and the generation module 15 shown in FIG. 8 . The transceiver 1004 includes a receiver and a transmitter. In an optional solution, the transceiver 1004 is applied in this embodiment of the present application to implement the function of the acquisition module 11 shown in FIG. 8 .

The processor 1001 may be a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processing (Digital Signal Processing, DSP), an integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable logic gate array (Field- Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor 1001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The bus 1002 may include a path to communicate information between the aforementioned components. The bus 1002 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like. The bus 1002 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.

Memory 1003 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types of storage devices that can store information and instructions The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a CompactDisc Read-Only Memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this.

Optionally, the memory 1003 is used to store the application code for executing the solution of the present application, and the execution is controlled by the processor 1001 . The processor 1001 is configured to execute the application program code stored in the memory 1003, so as to realize the action of the central node provided by any one of the embodiments shown in FIG. 3 .

Embodiments of the present application also provide a computer storage medium for storing computer software instructions used by the central node, including a program designed for the central node to execute the above aspects.

FIG. 10 provides a modular schematic diagram of a network node according to an embodiment of the present application. The network node in this embodiment of the present application may be the network node described in any of the method embodiments shown in FIG. 3 to FIG. 7 . Therefore, content is repeated in any of the method embodiments shown in FIG. 3 to FIG. 7 , which may not be repeated in this embodiment.

As shown in FIG. 10 , the network node 2 in this embodiment of the present application may include: a block generating unit 2001 . Optionally, the network node 2 may further include a first information receiving module 2002, an information generating module 2003, a first information sending module 2004, a block sending module 2005, a second information receiving module 2006, a notification message receiving module 2007, At least one of the deletion message receiving module 2008 , the deletion block determination module 2009 , the deletion message sending module 2010 , the deletion module 2011 and the recording module 2012 is deleted.

The block generation module 2001 is configured to generate a block of the blockchain according to at least one first transaction information. The first transaction information includes information corresponding to at least one of the following items: data items, data index value items, data hash value items, time information items, data sender items, and data receiver items.

Optionally, also include:

a first information receiving module 2002, configured to receive data information sent by at least one device node;

The information generating module 2003 is configured to generate at least one first transaction information according to the data information received by the first information receiving module 2002 .

Optionally, the data information includes at least one of the following: first data, a first hash value of the first data, an index value of the first data, time information of the first data, the sending The identification of the device node of the data information, the address of the device node and the address of the network node.

Optionally, it further includes: a calculation module, configured to calculate a first hash value of the first data if the data information includes the first data and does not include the first hash value; the The information generating module 2003 is specifically configured to generate at least one first transaction information according to the data information and the first hash value.

Optionally, also include:

The first information sending module 2004 is configured to send at least one first transaction information generated by the information generating module 2003 to other network nodes or at least one device node.

Optionally, it also includes: a second information receiving module 2006, configured to receive at least one second transaction information sent by other network nodes or at least one device node; wherein the second transaction information includes information corresponding to at least one of the following items : a data item, an index value item of the data, a hash value item of the data, a time information item, a sender item of the data, and a receiver item of the data.

Optionally, the block generation module 2001 is further configured to, if the at least one first transaction information generated by the information generation module 2003 includes a data item, then according to the at least one first transaction information, based on the first algorithm, Generate the blocks of the first blockchain.

Optionally, the block generation module 2001 is further configured to, if at least one first transaction information generated by the information generation module 2003 includes a data item, and the at least one transaction information received by the second information receiving module 2006 The second transaction information includes data items, and according to the at least one first transaction information and/or the at least one second transaction information, based on the second algorithm, a block of the first blockchain is generated.

Optionally, also include:

The block generation module is further configured to, if the at least one first transaction information generated by the information generation module 2003 includes a hash value item of the data, then according to the at least one first transaction information, and based on the third algorithm, generate: Blocks of the second blockchain.

Optionally, also include:

The block generation module is further configured to, if at least one first transaction information generated by the information generation module 2003 includes a hash value item of data, and at least one second transaction received by the second information receiving module 2006 If the information includes a hash value item of the data, then according to the at least one first transaction information and/or the at least one second transaction information, based on the fourth algorithm, a block of the second blockchain is generated.

Optionally, the block generation module is further configured to, if the at least one first transaction information generated by the information generation module 2003 includes a data item, then according to the at least one first transaction information, based on the fifth algorithm, generate A block of the first blockchain; and, if at least one first transaction information generated by the information generating module 2003 contains a hash value item of data, and at least one second information received by the second information receiving module 2006 If the transaction information includes a hash value item of the data, then according to the at least one first transaction information and/or the at least one second transaction information, and based on the sixth algorithm, a block of the second blockchain is generated;

or,

The block generation module is further configured to, if at least one first transaction information generated by the information generation module 2003 includes a data item, and at least one second transaction information received by the second information receiving module 2006 includes a data item , then according to the at least one first transaction information and/or the at least one second transaction information, based on the seventh algorithm, the block of the first blockchain is generated; and, the at least one block generated by the information generation module 2003 If the first transaction information includes the hash value item of the data, then according to the at least one first transaction information and based on the eighth algorithm, a block of the second blockchain is generated.

If the first blockchain is generated and the second blockchain is not generated, the network node 2 further includes:

a first obtaining module, for obtaining the first hash value of the first data;

The first obtaining module is further configured to obtain the first data from the first blockchain, and calculate a second hash value of the first data;

a first comparison module, configured to compare the first hash value with the second hash value;

a first determination module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or,

The first determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value.

If the first blockchain is not generated and the second blockchain is generated, the network node 2 further includes:

a second obtaining module, configured to obtain the first hash value of the first data from the second blockchain;

The second obtaining module is further configured to obtain the stored first data and calculate the second hash value of the first data;

a second comparison module, configured to compare the first hash value with the second hash value;

A second determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or,

The second determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value.

If both the first blockchain and the second blockchain are generated, the network node 2 further includes:

a third obtaining module, configured to obtain the first hash value of the first data from the second blockchain;

The third obtaining module is further configured to obtain the first data from the first blockchain, and calculate a second hash value of the first data;

a third comparison module, configured to compare the first hash value with the second hash value;

a third determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or,

The third determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value.

Optionally, it further includes: a block sending module 2005, configured to send the data information or the block of the block chain to the central node.

Optionally, the method further includes: a notification message sending module 2007, configured to send a first notification message to the at least one device node, where the first notification message is used to notify the device node that a message of a block of the blockchain has been generated.

Optionally, it also includes: a deletion message sending module 2010, configured to send a first deletion message to the device node, where the first deletion message is an instruction message for instructing the device node to delete the data information or delete the block .

Optionally, it further includes: a deletion message receiving module 2008, further configured to receive a second deletion message sent by the at least one device node, where the second deletion message is used by the at least one device node to request deletion of the data information or delete blocks.

Optionally, the deletion block determination module 2009 is configured to determine the block to be deleted from the target blockchain, where the target blockchain is any blockchain stored by the network node.

Optionally, the second information sending module 2013 is further configured to send a plurality of transaction information contained in the blocks of the blockchain to an upper-level network node.

Optionally, the method further includes: a deletion module 2011, configured to delete the block to be deleted in the target blockchain.

Optionally, the deletion module 2011 is specifically configured to determine the block to be deleted from the target blockchain according to a preset deletion rule; wherein, the preset deletion rule is: the network node stores the target area The number of blocks in the blockchain is greater than a preset threshold, or the block to be deleted is a block whose generation time duration exceeds the time threshold, or the block to be deleted is a block whose block serial number is less than the serial number threshold.

Optionally, the recording module 2012 is configured to record the block header content of the block to be deleted.

The network node in the embodiment shown in FIG. 10 may be implemented as the network node shown in FIG. 11 . As shown in FIG. 11 , an embodiment of the present application provides a schematic structural diagram of a network node. The network node 4000 shown in FIG. 11 includes a processor 4001 and a transceiver 4004 .

The processor 4001 is connected to the transceiver 4004, for example, through the bus 4002. Optionally, the network node 4000 may further include a memory 4003 .

It should be noted that, in practical applications, there is at least one transceiver 4004, and the structure of the network node 4000 does not constitute a limitation to the embodiments of the present application.

The processor 4001 is used in the embodiment of the present application to realize the functions of the block generation unit 2001, the information generation module 2003, the deletion block determination module 2009, the deletion module 2011 and the recording module 2012 shown in FIG. 10 . The transceiver 4004 includes a receiver and a transmitter. The transceiver 4004 is used in this embodiment of the present application to implement the first information receiving module 2002, the first information sending module 2004, the block sending module 2005, the 2. The information receiving module 2006, the notification message receiving module 2007, the deletion message receiving module 2008, and the functions of the deletion message sending module 2010.

The processor 4001 may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The bus 4002 may include a path to transfer information between the components described above. The bus 4002 may be a PCI bus, an EISA bus, or the like. The bus 4002 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.

The memory 4003 can be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or electrical EEPROM, CD-ROM or other optical disk storage, optical disks. storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by Any other medium accessed by the computer, but not limited to this.

Optionally, the memory 4003 is used to store the application code for executing the solution of the present application, and the execution is controlled by the processor 4001 . The processor 4001 is configured to execute the application program code stored in the memory 4003, so as to realize the action of the network node in any of the embodiments shown in FIG. 3 to FIG. 7 .

Embodiments of the present application also provide a computer storage medium for storing computer software instructions used by the network node, including a program designed for the network node to execute the above aspect.

FIG. 12 provides a modular schematic diagram of a device node according to an embodiment of the present application. The device node in this embodiment of the present application may be the device node described in any of the method embodiments shown in FIG. 3 to FIG. 7 . Therefore, content is repeated in any of the method embodiments shown in FIG. 3 to FIG. 7 , which may not be repeated in this embodiment.

As shown in FIG. 12 , the device node 3 in this embodiment of the present application may include: a sending module 30 . Optionally, the device node 3 may further include a first receiving module 31 , a second receiving module 32 , a third receiving module 33 and a deleting module 34 .

The sending module 30 is configured to send one or more data information to the network node, where the data information includes at least one of the following: first data, a first hash value of the first data, and an index of the first data value, the time information of the first data, the identity of the device node sending the data information, the address of the device node and the address of the network node; the data information is used by the network node to generate the first transaction information;

Optionally, it further includes: a first receiving module 31, configured to receive a first notification message of the blockchain sent by a network node, where the first notification message is used to notify the network node that a block has been generated according to the data information The message of the block of the chain.

Optionally, the method further includes: a second receiving module 32, configured to receive the block sent by the network node.

Optionally, it also includes: a third receiving module 33, configured to receive a first deletion message sent by the network node, where the first deletion message is used to instruct the device node to delete the data information or delete a block instruction message.

Optionally, the sending module 30 is further configured to send a second deletion message to the network node, where the second deletion message is used to request deletion of the data information or deletion of a block.

Optionally, the method further includes: a deletion module 34, configured to delete the data information.

Optionally, the deletion module 34 is specifically configured to delete the data information whose generation duration exceeds the first time threshold.

FIG. 13 provides a modular schematic diagram of another device node according to an embodiment of the present application. The device node in this embodiment of the present application may be the device node described in any of the method embodiments shown in FIG. 3 to FIG. 7 . Therefore, content is repeated in any of the method embodiments shown in FIG. 3 to FIG. 7 , which may not be repeated in this embodiment.

As shown in FIG. 13 , the device node 3 in this embodiment of the present application may include: a generating module 35 . Optionally, the device node 3 may further include a sending module 36 , a second receiving module 37 , a third receiving module 38 and a deleting module 39 .

The generating module 35 is configured to generate at least one second transaction information according to one or more data information, and send the at least one second transaction information to the network node; the second transaction information includes at least one corresponding to the following: Information: data item, data index value item, data hash value item, time information item, data sender item, and data receiver item.

Optionally, it further includes: a second receiving module 37, configured to receive the block sent by the network node.

Optionally, it also includes: a third receiving module 38, configured to receive a first deletion message sent by the network node, where the first deletion message is used to instruct the device node to delete the data information or delete a block instruction message.

Optionally, the method further includes: a sending module 36, further configured to send a second deletion message to the network node, where the second deletion message is used to request deletion of the data information or deletion of blocks.

Optionally, the method further includes: a deletion module 39, configured to delete the data information.

Optionally, the deletion module 39 is specifically configured to delete the data information whose generation duration exceeds the first time threshold.

The device node in the embodiment shown in FIG. 12 or FIG. 13 may be implemented as the device node shown in FIG. 14 . As shown in FIG. 14 , an embodiment of the present application provides a schematic structural diagram of a device node. The device node 3000 shown in FIG. 14 includes a processor 3001 and a transceiver 3004 .

The processor 3001 is connected to the transceiver 3004, for example, through the bus 3002. Optionally, the device node 3000 may further include a memory 3003 .

It should be noted that, in practical applications, there is at least one transceiver 3004, and the structure of the device node 3000 does not constitute a limitation on the embodiments of the present application. Transceiver 1004 includes a receiver and a transmitter.

In one solution, the processor 1001 is applied in this embodiment of the present application to implement the function of the deletion module 34 shown in FIG. 12 . The transceiver 1004 is applied in this embodiment of the present application, and is used to implement the functions of the sending module 30 , the first receiving module 31 , the second receiving module 32 , and the third receiving module 33 shown in FIG. 12 .

In another solution, the processor 1001 is applied in the embodiment of the present application to implement the functions of the generation module 35 and the deletion module 39 shown in FIG. 13 . The transceiver 1004 is applied in this embodiment of the present application, and is used to implement the functions of the sending module 36 , the second receiving module 37 , and the third receiving module 38 shown in FIG. 13 .

The processor 3001 may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor 3001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The bus 3002 may include a path to transfer information between the components described above. The bus 3002 may be a PCI bus, an EISA bus, or the like. The bus 3002 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is shown in FIG. 14, but it does not mean that there is only one bus or one type of bus.

The memory 3003 can be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or electrical EEPROM, CD-ROM or other optical disk storage, optical disks. storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by Any other medium accessed by the computer, but not limited to this.

Optionally, the memory 3003 is used to store the application code for executing the solution of the present application, and the execution is controlled by the processor 3001 . The processor 3001 is configured to execute the application program code stored in the memory 3003, so as to realize the action of the device node in any of the embodiments shown in FIG. 3 to FIG. 7 .

Embodiments of the present application also provide a computer storage medium for storing computer software instructions used for the above-mentioned device node, including a program designed for the device node to execute the above-mentioned aspects.

Although the application is described herein in conjunction with the various embodiments, those skilled in the art will understand and understand from a review of the drawings, the disclosure, and the appended claims in practicing the claimed application. Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

It should be understood by those skilled in the art that the embodiments of the present application may be provided as a method, an apparatus (apparatus), or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. The computer program is stored/distributed in a suitable medium, provided with or as part of other hardware, or may take other forms of distribution, such as over the Internet or other wired or wireless telecommunication systems.

The present application is described with reference to the flowcharts and/or block diagrams of the methods, apparatuses (devices) and computer program products of the embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (82)

1. a data processing method, is characterized in that, comprises: the central node obtains the first hash value of the first data from the first network node; The central node obtains the first data from the second network node, and calculates a second hash value of the first data; the central node compares the first hash value with the second hash value; If the first hash value is the same as the second hash value, the central node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that all the first hash value of the first data is a trusted hash value; Wherein, the first hash value of the first data is stored in the second blockchain of the first network node; the first data is stored in the first blockchain of the second network node; The central node, the first network node, and the second network node are physically separated devices with communication or storage functions; or, the first network node and the second network node are physically separated A device with a communication or storage function, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same A device with a communication or storage function, and the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 2. The method of claim 1, further comprising: If the first hash value is different from the second hash value, the central node determines that the first data is untrusted data; or, determines that the first data has been tampered with; or, determines The first hash value of the first data is an untrusted hash value. 3. The method according to claim 1 or 2, wherein the central node obtains the first hash value of the first data from the first network node, comprising: The central node obtains the first hash value corresponding to the first data from the second block chain of the first network node; wherein, the second block chain is generated from transaction information including the hash value item of the data of blocks. 4. The method according to claim 1 or 2, wherein the central node obtains the first data from a second network node, comprising: The central node obtains the first data from a first block chain of the second network node, wherein the first block chain is composed of blocks generated from transaction information including data items. 5. The method according to claim 1 or 2, characterized in that, further comprising: The central node obtains the first hash value association information of the first data from the first network node, and the association information includes at least one of the following: the index value of the first data, the time of the first data information, the device node identifier that sends the first data, the address for sending the first data, and the address for receiving the first data. 6. The method according to claim 1 or 2, further comprising: The central node acquires association information of the first data from the second network node, and the association information includes at least one of the following: an index value of the first data, time information of the first data, sending the The device node identification of the first data, the address for sending the first data, and the address for receiving the first data. 7. The method according to claim 1 or 2, wherein before the central node acquires the first hash value of the first data from the first network node, the method further comprises: The central node selects a first network node and determines it as the target first network node; The central node obtains the first hash value of the first data from the first network node, including: The central node obtains the first hash value of the first data from the second blockchain of the target first network node. 8. The method according to claim 7, wherein the central node selects a first network node and determines it as the target first network node, comprising: The central node selects a first network node that satisfies the first legal condition from the at least one first network node as the target first network node; The first legal condition is that the number of nodes that are the same as the first hash value of the first data of the second blockchain of the target first network node exceeds a first threshold. 9. The method according to claim 1 or 2, wherein before the central node acquires the first data from the second network node, the method further comprises: The central node selects a second network node and determines it as the target second network node; The central node obtains the first data from the second network node, including: The central node obtains the first data from the first blockchain of the target second network node. 10. The method according to claim 9, wherein the central node selects a second network node and determines it as the target second network node, comprising: The central node selects a network node that satisfies the second legal condition from the at least one second network node as the second target network node; The second legal condition is that the number of network nodes that are identical to the first data of the first blockchain of the target second network node exceeds a second threshold. 11. The method according to any one of claims 1, 2, and 8, further comprising: If it is determined that the first data is trusted data, the central node determines that the i-th transaction information of the third blockchain meets the generation conditions, and generates the i-th transaction information of the third blockchain; or If it is determined that the first data is untrusted data, the central node determines that the i-th transaction information of the third blockchain does not meet the generation condition, and does not generate the i-th transaction information of the third blockchain. transaction information; or If it is determined that the first data is untrusted data, the central node determines that the jth transaction information of the third blockchain satisfies the generation condition, and generates the jth transaction information of the third blockchain. 12. A data processing method, comprising: The network node generates a block of the blockchain according to the at least one first transaction information; The first transaction information includes information corresponding to at least one of the following items: a transaction identification item, a node identification item that generates the first transaction information, a data item, an index value item of the data, a hash value item of the data, and a time information item , the sender item of the data and the receiver item of the data; the data information includes the first data and the first hash value of the first data; Wherein, the first hash value of the first data is stored in the second blockchain of the first network node; the first data is stored in the first blockchain of the second network node; the central node, the The first network node and the second network node are physically separated devices with a communication or storage function; or, the first network node and the second network node are physically separated devices with a communication or storage function equipment, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same with a communication or storage function device, the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 13. The method according to claim 12, wherein before the network node generates a block of the blockchain according to at least one first transaction information, the method further comprises: The network node receives data information sent by at least one device node; The network node generates at least one first transaction information according to the data information. 14. The method according to claim 13, wherein the data information comprises at least one of the following: first data, a first hash value of the first data, an index value of the first data, The time information of the first data, the identifier of the device node sending the data information, the address of the device node, and the address of the network node. 15. The method of claim 14, further comprising: If the data information includes the first data and does not include the first hash value, the network node calculates a first hash value of the first data; The network node generates at least one first transaction information according to the data information, including: The network node generates at least one first transaction information according to the data information and the first hash value. 16. The method of any one of claims 13-15, further comprising: The network node sends the at least one first transaction information to other network nodes or at least one device node. 17. The method of any one of claims 12-15, further comprising: The network node receives at least one second transaction information sent by other network nodes or at least one device node; The second transaction information includes information corresponding to at least one of the following items: transaction identification item, node identification item that generates the second transaction information, data item, data index value item, data hash value item, time An item of information, a sender item of the data, and a receiver item of the data. 18. The method according to any one of claims 12-15, further comprising: If the at least one first transaction information includes a data item, the network node generates a block of the first blockchain based on the at least one first transaction information and a first algorithm. 19. The method of claim 17, further comprising: If the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information and/or the at least one second transaction information, based on the second algorithm, to generate blocks of the first blockchain. 20. The method of any one of claims 12-15, further comprising: If the at least one first transaction information includes a hash value item of the data, the network node generates a block of the second blockchain based on the at least one first transaction information and a third algorithm. 21. The method of claim 17, further comprising: If the at least one first transaction information includes a hash value item of the data, and the at least one second transaction information includes a hash value item of the data, the network node according to the at least one first transaction information and/or Or the at least one second transaction information, based on the fourth algorithm, generates a block of the second blockchain. 22. The method of claim 17, wherein: If the at least one first transaction information includes a data item, the network node generates a block of the first blockchain based on the fifth algorithm according to the at least one first transaction information; and, if the at least one first transaction information The first transaction information includes the hash value item of the data, and the at least one second transaction information includes the hash value item of the data, then the network node according to the at least one first transaction information and/or the at least one The second transaction information, based on the sixth algorithm, generates blocks of the second blockchain; or, If the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, the network node according to the at least one first transaction information and/or the at least one second transaction information, based on the seventh algorithm, generate a block of the first blockchain; and, if the at least one first transaction information contains a hash value item of data, then the network node, according to the at least one first transaction information, Based on the eighth algorithm, a block of the second blockchain is generated. 23. The method of claim 19 or 22, further comprising: obtaining, by the network node, a first hash value of the first data; the network node obtains the first data from the first blockchain, and calculates a second hash value of the first data; the network node compares the first hash value with the second hash value; If the first hash value is the same as the second hash value, the network node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that all the first hash value of the first data is a trusted hash value; or, If the first hash value is different from the second hash value, the network node determines that the first data is untrusted data; or, determines that the first data has been tampered with; or, determines The first hash value of the first data is an untrusted hash value. 24. The method of claim 21 or 22, further comprising: the network node obtains the first hash value of the first data from the second blockchain; obtaining, by the network node, the stored first data, and calculating a second hash value of the first data; the network node compares the first hash value with the second hash value; If the first hash value is the same as the second hash value, the network node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that all the first hash value of the first data is a trusted hash value; or, If the first hash value is different from the second hash value, the network node determines that the first data is untrusted data; or, determines that the first data has been tampered with; or, determines The first hash value of the first data is an untrusted hash value. 25. The method of claim 22, further comprising: the network node obtains the first hash value of the first data from the second blockchain; the network node obtains the first data from the first blockchain, and calculates a second hash value of the first data; the network node compares the first hash value with the second hash value; If the first hash value is the same as the second hash value, the network node determines that the first data is trusted data; or determines that the first data has not been tampered with; or determines that all the first hash value of the first data is a trusted hash value; or, If the first hash value is different from the second hash value, the network node determines that the first data is untrusted data; or, determines that the first data has been tampered with; or, determines The first hash value of the first data is an untrusted hash value. 26. The method according to any one of claims 13, 14, 15, 19, 21, 22, and 25, further comprising: The network node sends the data information or the block of the blockchain to the central node. 27. The method according to any one of claims 12, 13, 14, 15, 19, 21, 22, and 25, wherein the network node generates a block chain according to at least one first transaction information. After the block, it also includes: The network node sends a first notification message to the at least one device node, where the first notification message is used to notify the device node that a block of the blockchain has been generated. 28. The method according to any one of claims 13, 14, 15, 19, 21, 22, and 25, further comprising: The network node sends a first delete message to the device node, where the first delete message is an instruction message for instructing the device node to delete the data information or delete the block. 29. The method according to any one of claims 13, 14, 15, 19, 21, 22, and 25, further comprising: The network node receives a second deletion message sent by the at least one device node, where the second deletion message is used by the at least one device node to request deletion of the data information or deletion of a block. 30. The method according to any one of claims 12, 13, 14, 15, 19, 21, 22, and 25, further comprising: The network node determines the block to be deleted from the target blockchain, and the target blockchain is any blockchain stored by the network node. 31. The method of claim 27, further comprising: The network node sends a plurality of transaction information contained in the block of the blockchain to the upper-level network node. 32. The method of claim 30, further comprising: The network node deletes the block to be deleted in the target blockchain. 33. The method of claim 30, further comprising: The network node records the block header content of the block to be deleted. 34. The method according to claim 30, wherein the network node determines the block to be deleted from the target blockchain, comprising: Determine the block to be deleted from the target blockchain according to the preset deletion rules; The preset deletion rule is: the number of blocks stored in the target blockchain by the network node is greater than a preset threshold, or the block to be deleted is a block whose generation time exceeds the time threshold, or , the block to be deleted is a block whose block serial number is less than the serial number threshold. 35. A data processing method, comprising: The device node sends one or more pieces of data information to the network node, where the data information includes at least one of the following: first data, a first hash value of the first data, an index value of the first data, the The time information of the first data, the identifier of the device node sending the data information, the address of the device node and the address of the network node; the first hash value of the first data is stored in the first network node's in the second blockchain; the first data is stored in the first blockchain of the second network node; the first network node sends the hash value of the first data to the central node, and the first network node sends the hash value of the first data to the central node. Two network nodes send the first data to the central node, so that the central node calculates a second hash value of the first data, and compares the second hash value with the first hash value Yes, to check whether the first data has been tampered with, or to check whether the first data is trusted data, or check whether the first hash value of the first data is a trusted hash value; The data information is used by the network node to generate the first transaction information; or, The device node generates at least one second transaction information according to the one or more data information, and sends the at least one second transaction information to the network node; The second transaction information includes information corresponding to at least one of the following items: a data item, an index value item of the data, a hash value item of the data, a time information item, a sender item of the data, and a receiver item of the data; The central node, the first network node, and the second network node are physically separated devices with communication or storage functions; or, the first network node and the second network node are physically separated A device with a communication or storage function, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same A device with a communication or storage function, and the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 36. The method of claim 35, further comprising: The device node receives a first notification message of the blockchain sent by the network node, where the first notification message is used to notify the network node that a block of the blockchain has been generated according to the data information. 37. The method of claim 35 or 36, further comprising: The device node receives the block sent by the network node. 38. The method of claim 35 or 36, further comprising: The device node receives a first deletion message sent by the network node, where the first deletion message is an instruction message for instructing the device node to delete the data information or delete the block. 39. The method of claim 35 or 36, further comprising: A second deletion message sent by the device node to the network node, where the second deletion message is used to request deletion of the data information or deletion of a block. 40. The method of claim 35 or 36, further comprising: The device node deletes the data information. 41. The method according to claim 40, wherein the device node deletes data information, comprising: The device node deletes the data information whose generation duration exceeds the first time threshold. 42. A central node, characterized in that, comprising: an acquisition module for acquiring the first hash value of the first data from the first network node; a calculation module, configured to obtain the first data from a second network node, and calculate a second hash value of the first data; the first hash value of the first data is stored in the first network node in the second blockchain of the second network node; the first data is stored in the first blockchain of the second network node; a comparison module, configured to compare the first hash value with the second hash value; a determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or, determine The first hash value of the first data is a trusted hash value; The central node, the first network node, and the second network node are physically separated devices with communication or storage functions; or, the first network node and the second network node are physically separated A device with a communication or storage function, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same A device with a communication or storage function, and the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 43. The central node of claim 42, wherein The determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or determine that the first data has been tampered with or, determining that the first hash value of the first data is an untrusted hash value. 44. The central node according to claim 42 or 43, wherein the acquisition module is specifically used for: Obtain the first hash value corresponding to the first data from the second blockchain of the first network node; wherein the second blockchain is composed of blocks generated from transaction information including the hash value item of the data of. 45. The central node according to claim 43, wherein the computing module is specifically used for: The first data from the first blockchain of the second network node, wherein the first blockchain is composed of blocks generated from transaction information containing data items. 46. The central node according to claim 42 or 43, characterized in that, The obtaining module is further configured to obtain first hash value associated information of the first data from the first network node, where the associated information includes at least one of the following: an index value of the first data, the first hash value of the first data Time information of a piece of data, an identifier of a device node that sends the first data, an address for sending the first data, and an address for receiving the first data. 47. The central node according to claim 42 or 43, characterized in that, The obtaining module is further configured to obtain association information of the first data from the second network node, where the association information includes at least one of the following: an index value of the first data, time information of the first data , the device node identifier for sending the first data, the address for sending the first data, and the address for receiving the first data. 48. The central node according to claim 42 or 43, characterized in that, The determining module is further configured to select a first network node and determine it as the target first network node; The obtaining module is specifically configured to obtain the first hash value of the first data from the second blockchain of the target first network node. 49. The central node according to claim 48, wherein, in terms of selecting a first network node and determining it as a target first network node, the determining module is specifically configured to select a first network node from at least one first network node that satisfies the The first network node of the first legal condition is the target first network node; The first legal condition is that the number of nodes that are the same as the first hash value of the first data of the second blockchain of the target first network node exceeds a first threshold. 50. The central node according to claim 42 or 43, characterized in that, The determining module is further configured to select a second network node and determine it as the target second network node; The obtaining module is specifically configured to obtain the first data from the first blockchain of the target second network node. 51. The central node according to claim 50, wherein, in selecting a second network node and determining it as a target second network node, the determining module is specifically configured to select a second network node from at least one second network node that satisfies the The network node of the second legal condition is the second target network node; The second legal condition is that the number of network nodes that are identical to the first data of the first blockchain of the target second network node exceeds a second threshold. 52. The central node according to any one of claims 42, 43, 45, 49, and 51, characterized in that, further comprising: A generating module, configured to determine that the i-th transaction information of the third blockchain meets the generation condition if it is determined that the first data is trusted data, and generate the i-th transaction information of the third blockchain; or The generation module is further configured to determine that the i-th transaction information of the third blockchain does not meet the generation condition if it is determined that the first data is untrusted data, and not to generate the third block The i-th transaction information of the chain; or The generation module is further configured to, if it is determined that the first data is untrusted data, determine that the jth transaction information of the third blockchain satisfies the generation condition, and generate the jth transaction information of the third blockchain. transaction information. 53. A network node, characterized in that, comprising: a block generation module, configured to generate a block of the blockchain according to at least one first transaction information; The first transaction information includes information corresponding to at least one of the following items: a transaction identification item, a node identification item that generates the first transaction information, a data item, an index value item of the data, a hash value item of the data, and a time information item , the sender item of the data and the receiver item of the data; the data information includes the first data and the first hash value of the first data; Wherein, the first hash value of the first data is stored in the second blockchain of the first network node; the first data is stored in the first blockchain of the second network node; the central node, the The first network node and the second network node are physically separated devices with a communication or storage function; or, the first network node and the second network node are physically separated devices with a communication or storage function equipment, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same with a communication or storage function device, the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 54. The network node of claim 53, further comprising: a first information receiving module, configured to receive data information sent by at least one device node; an information generating module, configured to generate at least one first transaction information according to the data information. 55. The network node according to claim 54, wherein the data information comprises at least one of the following: first data, a first hash value of the first data, and an index value of the first data , the time information of the first data, the identifier of the device node sending the data information, the address of the device node and the address of the network node. 56. The network node of claim 55, further comprising: a calculation module, configured to calculate a first hash value of the first data if the data information includes the first data and does not include the first hash value; The information generating module is specifically configured to generate at least one first transaction information according to the data information and the first hash value. 57. The network node of any one of claims 54-56, further comprising: A first information sending module, configured to send the at least one first transaction information to other network nodes or at least one device node. 58. The network node of any one of claims 53-56, further comprising: A second information receiving module, configured to receive at least one second transaction information sent by other network nodes or at least one device node; The second transaction information includes information corresponding to at least one of the following items: transaction identification item, node identification item that generates the second transaction information, data item, data index value item, data hash value item, time An item of information, a sender item of the data, and a receiver item of the data. 59. The network node according to any one of claims 53-56, characterized in that, The block generation module is further configured to, if the at least one first transaction information includes a data item, generate a block of the first blockchain based on the at least one first transaction information and a first algorithm. 60. The network node of claim 58, wherein The block generation module is further configured to, if the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, according to the at least one first transaction information and/or the data item. The at least one second transaction information is generated, and based on the second algorithm, a block of the first blockchain is generated. 61. A network node according to any of claims 53-56, characterized in that The block generation module is further configured to, if the at least one first transaction information includes a hash value item of the data, generate a second block chain according to the at least one first transaction information and based on the third algorithm. block. 62. The network node of claim 58, wherein The block generation module is further configured to, if the at least one first transaction information includes a hash value item of data, and the at least one second transaction information includes a hash value item of data, then according to the at least one The first transaction information and/or the at least one second transaction information, based on the fourth algorithm, generate blocks of the second blockchain. 63. The network node of claim 58, wherein The block generation module is further configured to, if the at least one first transaction information includes a data item, generate a block of the first blockchain according to the at least one first transaction information and based on a fifth algorithm; and , if the at least one first transaction information includes a hash value item of data, and the at least one second transaction information includes a hash value item of data, then according to the at least one first transaction information and/or the at least one second transaction information, based on the sixth algorithm, to generate a block of the second blockchain; or, The block generation module is further configured to, if the at least one first transaction information includes a data item, and the at least one second transaction information includes a data item, according to the at least one first transaction information and/or the data item. the at least one second transaction information, based on the seventh algorithm, to generate a block of the first blockchain; and, the at least one first transaction information contains the hash value item of the data, then according to the at least one first transaction information, based on the eighth algorithm, to generate blocks of the second blockchain. 64. The network node of claim 59, further comprising: a first obtaining module, for obtaining the first hash value of the first data; The first obtaining module is further configured to obtain the first data from the first blockchain, and calculate a second hash value of the first data; a first comparison module, configured to compare the first hash value with the second hash value; a first determination module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or, The first determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value. 65. The network node of claim 61, further comprising: a second obtaining module, configured to obtain the first hash value of the first data from the second blockchain; The second obtaining module is further configured to obtain the stored first data and calculate the second hash value of the first data; a second comparison module, configured to compare the first hash value with the second hash value; A second determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or, The second determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value. 66. The network node of claim 63, further comprising: a third obtaining module, configured to obtain the first hash value of the first data from the second blockchain; The third obtaining module is further configured to obtain the first data from the first blockchain, and calculate a second hash value of the first data; a third comparison module, configured to compare the first hash value with the second hash value; a third determining module, configured to determine that the first data is trusted data if the first hash value is the same as the second hash value; or, determine that the first data has not been tampered with; or , determining that the first hash value of the first data is a trusted hash value; or, The third determining module is further configured to determine that the first data is untrusted data if the first hash value is different from the second hash value; or, determine that the first data has been tampered; or, it is determined that the first hash value of the first data is an untrusted hash value. 67. The network node according to any one of claims 54, 55, 56, 60, 62, 63, 64, 65, 66, further comprising: The block sending module is used to send the data information or the block of the block chain to the central node. 68. The network node according to any one of claims 53, 54, 55, 56, 60, 62, 63, 64, 65, 66, characterized in that, further comprising: A notification message sending module, configured to send a first notification message to the at least one device node, where the first notification message is used to notify the device node that a block of the blockchain has been generated. 69. The network node according to any one of claims 54, 55, 56, 60, 62, 63, 64, 65, 66, further comprising: The deletion message sending module is configured to send a first deletion message to the device node, where the first deletion message is an instruction message for instructing the device node to delete the data information or delete the block. 70. The network node according to any one of claims 54, 55, 56, 60, 62, 63, 64, 65, 66, further comprising: The deletion message receiving module is further configured to receive a second deletion message sent by the at least one device node, where the second deletion message is used by the at least one device node to request deletion of the data information or deletion of a block. 71. The network node according to any one of claims 53, 54, 55, 56, 60, 62, 63, 64, 65, 66, further comprising: The deletion block determination module is used to determine the block to be deleted from the target blockchain, where the target blockchain is any blockchain stored by the network node. 72. The network node of any one of claims 53, 54, 55, 56, 60, 62, 63, 64, 65, 66, wherein, The second information sending module is further configured to send a plurality of transaction information contained in the blocks of the blockchain to the upper-level network node. 73. The network node of claim 71, further comprising A deletion module, configured to delete the block to be deleted in the target blockchain. 74. The network node of claim 71, further comprising: The recording module is used to record the block header content of the block to be deleted. 75. The network node according to claim 71, wherein the deletion block determination module is specifically configured to determine the block to be deleted from the target blockchain according to a preset deletion rule; The preset deletion rule is: the number of blocks stored in the target blockchain by the network node is greater than a preset threshold, or the block to be deleted is a block whose generation time exceeds the time threshold, or , the block to be deleted is a block whose block serial number is less than the serial number threshold. 76. A device node, characterized in that it comprises: A sending module, configured to send one or more data information to a network node, the data information including at least one of the following: first data, a first hash value of the first data, and an index value of the first data , the time information of the first data, the identifier of the device node sending the data information, the address of the device node and the address of the network node; The data information is used by the network node to generate the first transaction information; the first hash value of the first data is stored in the second blockchain of the first network node; the first data is stored in the second In the first blockchain of the network node; the first network node sends the hash value of the first data to the central node, and the second network node sends the first data to the central node, so that the central node calculates the second hash value of the first data, and compares the second hash value with the first hash value to check whether the first data has been tampered with, or, check Whether the first data is trusted data, or check whether the first hash value of the first data is a trusted hash value; or, a generating module, configured to generate at least one second transaction information according to one or more data information, and send the at least one second transaction information to the network node; The second transaction information includes information corresponding to at least one of the following items: a data item, an index value item of the data, a hash value item of the data, a time information item, a sender item of the data, and a receiver item of the data; The central node, the first network node, and the second network node are physically separated devices with communication or storage functions; or, the first network node and the second network node are physically separated A device with a communication or storage function, the central node is either the first network node or the second network node; or, the first network node and the second network node are the same A device with a communication or storage function, and the central node is a third-party device; or, the central node, the first network node, and the second network node are the same device with a communication or storage function. 77. The device node of claim 76, further comprising: The first receiving module is configured to receive a first notification message of the blockchain sent by the network node, where the first notification message is used to notify the network node that a block of the blockchain has been generated according to the data information. 78. The device node of claim 76 or 77, further comprising: The second receiving module is used for receiving the block sent by the network node. 79. The device node of claim 76 or 77, further comprising: The third receiving module is configured to receive a first deletion message sent by the network node, where the first deletion message is an instruction message for instructing the device node to delete the data information or delete the block. 80. The device node of claim 76 or 77, wherein The sending module is further configured to send a second deletion message to the network node, where the second deletion message is used to request deletion of the data information or deletion of blocks. 81. The device node of claim 76 or 77, further comprising: A deletion module is used to delete the data information. 82. The device node according to claim 81, wherein the deletion module is specifically configured to delete data information whose generation duration exceeds the first time threshold.

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