CN111402040A - An asset management method and system - Google Patents

Abstract

The present invention provides an asset management method and system, wherein the asset management method includes: receiving an asset transaction request submitted by an asset demander; generating transaction information according to the asset transaction request; , perform a private key signature on the transaction information, so that in the case of obtaining the encrypted transaction information, the asset demander pays the asset owner the asset price corresponding to the asset transaction request. The embodiment of the present invention can realize the asset transaction under the guarantee and improve the security of the transaction.

Description

An asset management method and system

technical field

The present invention relates to the technical field of blockchain, and in particular, to an asset management method and system.

Background technique

Smart assets generally refer to all types of tradable assets based on the blockchain, which are embodied in the control of ownership through the blockchain and in compliance with existing laws through contracts. Blockchain can be used for the registration and transaction of any smart asset, including various fields such as finance, economy and currency, including tangible assets such as real estate and automobiles, as well as intangible assets such as stocks, savings, and intellectual property.

The core of smart assets is to control ownership. For smart assets registered on the blockchain, they can be used at any time through the private key. In the implementation of traditional technology, due to the distrust between users, digital asset transactions between users are often completed through a third-party trading center platform. The user uploads the asset information to the third-party trading center platform, and the third-party trading center platform grasps all the asset information, and the user's inquiries and transactions on the assets are completed by the third-party trading center platform.

However, although the third-party trading center platform can credibly manage the query, transaction and other processes of user assets, it cannot be ignored that it often happens that due to the negligence or interest drive of the management personnel of the third-party trading center platform, the user assets In the event of loss, the security of the user's asset transaction process is low.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an asset management method and system to solve the problem of low security in the existing asset transaction process.

In a first aspect, an embodiment of the present invention provides an asset management method, which is applied to an asset management system, where the system is constructed based on a blockchain, and the method includes:

Receive asset transaction requests submitted by asset demanders;

generating transaction information according to the asset transaction request;

The transaction information is signed with a private key by the asset owner and at least one guarantor, so that when the encrypted transaction information is obtained, the asset demander pays the asset owner corresponding to the asset transaction request asset prices.

In a second aspect, an embodiment of the present invention further provides an asset management system, the system is constructed based on a blockchain, and the system includes:

a first receiving module, configured to receive an asset transaction request submitted by an asset demander;

a generating module, configured to generate transaction information according to the asset transaction request;

The signature module is used to sign the transaction information with a private key through the asset owner and at least one guarantor, so that in the case of obtaining the encrypted transaction information, the asset demander pays the asset owner to the asset owner. The asset price corresponding to the asset transaction request described above.

In a third aspect, embodiments of the present invention further provide an asset management system, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is The steps of the above asset management method can be implemented when the processor is executed.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the above asset management method can be implemented.

In the asset management method of the embodiment of the present invention, when conducting asset transactions, the asset owner and at least one guarantor can sign the transaction information with a private key, so that when the encrypted transaction information is obtained, the asset demand direction can be The asset owner pays the corresponding asset price, thereby realizing the asset transaction under the guarantee and improving the security of the transaction.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the distribution of an asset management system according to an embodiment of the present invention;

2 is a schematic diagram of a functional structure of an asset management system according to an embodiment of the present invention;

3 is a flowchart of an asset management method according to an embodiment of the present invention;

4 is a flowchart of an asset registration and release process according to an embodiment of the present invention;

5 is a flowchart of an asset transaction process according to an embodiment of the present invention;

6 is one of the schematic structural diagrams of an asset management system according to an embodiment of the present invention;

FIG. 7 is a second schematic structural diagram of an asset management system according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

First of all, it should be pointed out that the embodiments of the present invention provide a blockchain-based asset management system (also referred to as an intelligent asset management system), which can use blockchain technology to decentralize, trust, and Tampering and other technical features, and use the blockchain (such as the Bitcoin blockchain) as the management database, and supports multi-party guarantees without any intermediate trust agency. Specifically, as shown in FIG. 1 , the asset management system can be distributed and deployed on each node in a network such as a P2P (person-to-person) network. At the same time, the blockchain, as an external storage unit of a physical database, is also distributed and deployed in the P2P network. On each node, such as node A, node B, and node C, users can register, publish, and trade assets by accessing the asset management system on each node. With the help of physical databases and backup databases, full data storage can be achieved.

Among them, smart asset management can include ownership query (to prevent smart assets from being used without the owner's authorization), registration and release (to solve the ownership problem of smart assets), and transaction management (to solve the transfer transaction of smart assets) three aspects . Each service module in these three aspects is completed by a large number of independently operated companies and individuals. These service modules are scattered on various network nodes. The intelligent asset management system built through the blockchain can bring together these scattered users and data to form a joint distributed intelligent asset trading center, with decentralized trust and public participation. mechanism to build a unified data sharing platform.

The support of blockchain technology for the intelligent asset management system is mainly reflected in the asset ownership registration function of the internal structure of the data block. In addition, the blockchain consensus mechanism and P2P network also provide an open and transparent direct channel for asset transactions between nodes without third-party guarantees, which can ensure the authenticity and integrity of data and improve the traceability of the system. Accountability, reducing the trust risk of the system. The existence of smart contracts provides extremely low-cost infrastructure for system construction. After the asset transaction in the system is confirmed, the automatic transfer can be completed through contract programming. This transaction method can avoid the double payment problem and ensure that the transaction data is unique.

Specifically, as shown in FIG. 2, the blockchain-based asset management system 2 in the embodiment of the present invention may mainly include three functional parts, which are a basic function module 21, a smart contract module 22 and an asset management module 23, respectively. described as follows.

(1) Basic function module 21

For the basic function module 21, it mainly involves consensus mechanism, P2P network, security mechanism and account management.

First of all, in the selection of the consensus mechanism, since the users of this system are different types of users scattered on the P2P network nodes, the public chain that requires encrypted digital currency can be used, and the Bitcoin blockchain can be used in the implementation, corresponding to The consensus mechanism is the POW proof-of-work mechanism.

When specifically implemented, the Bitcoin blockchain can be used as a data storage medium for the registration information and/or transaction information generated by the asset management system 2. In the process of writing information to the corresponding blockchain, it is necessary to reach a consensus and select a billing node. The specific implementation process can be as follows:

1) The asset management system 2 will publish the submitted registration information and/or transaction information (only the information abstract is submitted, and the full amount of information will be encrypted and stored in the offline physical database) through the P2P network, and will be published on the entire network;

2) All Bitcoin blockchain nodes monitor the received data record information of the entire network of smart assets, and the data record information that has passed the basic legality verification will be temporarily stored;

3) All verification nodes consume their own computing power to try different random numbers, perform the specified hash calculation, and repeat the process until a reasonable random number is found;

4) After a node (accounting node) finds a reasonable random number, it generates block information (including smart asset registration information and/or transaction information);

5) The accounting node broadcasts the newly generated block information to the outside, and after other nodes pass the verification, they are connected to the blockchain, and the height of the main chain is increased by one;

6) All nodes switch to the back of the new block information, and continue to generate proof of work and new block information.

Secondly, the nodes of the Bitcoin blockchain can use the P2P network to organize the nodes that participate in data verification and accounting scattered around the world. Each node in the P2P network has equal status and is connected and interacted with each other in a flat topology. There are any centralized special nodes and hierarchical structures, and each node will undertake functions such as network routing, verifying block information, disseminating block information, and discovering new nodes.

During specific implementation, nodes can be divided into full nodes and lightweight nodes according to the amount of stored data. However, in the embodiment of the present invention, a lightweight node can be used, only a part of the blockchain data can be stored, and the data verification can be completed by requesting the required data from its adjacent nodes through the Simple Payment Verification (SPV) method. Data can be stored in an encrypted way using offline physical databases.

Again, in this embodiment, the security mechanism of the Bitcoin blockchain may include a chain structure, a timestamp, a hash function, a Merkle tree, asymmetric encryption, and the like.

Finally, for account management, it mainly includes three functions: node registration, security authentication and key management. It is mainly responsible for managing the addition of new nodes, verifying the legitimacy of nodes, and managing node status, etc., and is used to control the status of each node joining the blockchain. Access authorization permissions to avoid data breach risks.

(2) Smart Contract Module 22

Specifically, the smart contract module 22 is the business logic and algorithm built on the basic function module 21 . Typically, Bitcoin uses a simple, stack-based, left-to-right scripting language, and a script is essentially a list of a set of instructions attached to a Bitcoin transaction, which can depend on two categories Scripts (lock script and unlock script) to verify, different combinations of the two can derive an unlimited number of control conditions in Bitcoin transactions. In the embodiment of the present invention, it can be stipulated that the owner and at least one guarantor must jointly sign the transaction information with a private key before the smart asset can be traded, thereby realizing the secured smart asset transaction.

For example, the unlocking process of the specific transaction in the embodiment of the present invention may be:

1) Unlock script format: <signature><public key>, which ensures that users who must have a private key can unlock a transaction.

2) Lock script format: OP_DUP OP_HASH160 <public key hash> OP_EQUALVERIFY OP_CHECKSIG, that is, the lock script is composed of a series of stack commands and public key hash, the public key hash is RIPEMD160 (SHA256 (public key)), the size is 20 words Festival;

3) The bitcoin address can actually be encoded by the above public key hash, such as Base58check encoding, so you must have the private key of the address to unlock the lock script.

In the embodiment of the present invention, the smart contract module 22 may be responsible for the automatic control of the two types of preset rules of registration management rules and transaction management rules, so as to realize the automatic execution of business logic involved in the smart asset management and transaction process. Furthermore, since the Bitcoin scripting system is non-Turing complete, there is no complex loop and flow control, so in order to improve the flexibility and scalability of the scripting system, the specific implementation can be directly developed based on the Ethereum blockchain. Users can build arbitrarily complex and precisely defined smart contract rules.

(3) Asset management module 23

Specifically, the asset management module 23 is mainly responsible for the ownership inquiry, registration and release, and transaction management of smart assets, and can be combined with the smart contract module 22 to realize the smart asset management function.

First, for the ownership query of the smart asset, the asset management module 23 can support a third party to query the ownership of the smart asset through the asset management system 2, so as to prevent the smart asset from being used without the owner's authorization. However, if the ownership of the smart asset does not match the actual, the asset management module 23 can support online submission of infringement proof to the asset owner. During specific implementation, the asset management module 23 may provide a WEB interface or a web service/rest external function interface, and the returned data may be organized in XML or JSON.

For example, the possible application of the asset management module 23 may be at least one of the following:

According to the asset owner, query all the smart assets under its name;

According to the type, name, description, quantity, model and other characteristics of smart assets, query all smart assets that meet the conditions, and obtain owner information and other information;

Track the transaction flow records of smart assets;

Audit the legality of the registration of smart assets;

Audit the legality of the attribution of smart assets;

Audit the legality of transactions of smart assets;

Check the ownership certificate of smart assets;

Submit proof of infringement of the smart asset.

Secondly, for the registration and release of smart assets, the asset management module 23 can support smart asset owners to create asset descriptions, submit asset ownership certificates, and input asset prices (supporting bitcoin or legal currency pricing), bitcoin addresses or legal currency account numbers, etc., Register in System 2 and authorize System 2 to broadcast and publish smart assets on the entire network. After receiving the owner's registration, the registration information can be written into the blockchain, which automatically triggers the registration management rules in the smart contract module 22 to generate a network-wide unique digital certificate and send it to the asset owner.

For example, the network-wide unique digital certificate generated in this embodiment of the present invention may generally include the following content, as shown in Table 1 below:

serial number Certificate content 1 Version information of the certificate 2 The serial number of the certificate 3 The signature algorithm used by the certificate 4 The name of the issuer of the certificate 5 Validity period of the certificate 6 The name of the certificate owner 7 The public key of the certificate owner 8 The certificate issuer's signature on the certificate

Table 1

For another example, the smart asset registration information in this embodiment of the present invention may generally include the following content, as shown in Table 2 below:

Table 2

Finally, for the transaction management of smart assets, the asset management module 23 can support the smart asset demander to retrieve smart assets published on the entire network, find smart asset entries that match the needs, and conduct online transactions with the smart asset owner through the system 2. During specific implementation, the function of the module 23 can also be simplified and integrated into other transaction systems or platforms as a third-party plug-in to realize intelligent asset transactions.

In this embodiment of the present invention, if the asset owner agrees to the transaction request of the demander, the owner and at least one guarantor may first jointly perform a private key signature (multi-signature) on the corresponding transaction information, and then the demander sends the asset owner to the asset owner. Pay a bitcoin or fiat currency based on asset pricing to realize the transaction of smart assets under the guarantee. After the payment is completed, the system 2 can write the relevant transaction records into the Bitcoin blockchain, automatically trigger the transaction management rules in the smart contract, void the digital certificate of the original owner, and send the newly generated digital certificate to the new owner (demander). digital certificate.

In the embodiment of the present invention, the relevant registration information and transaction information will be recorded on the Bitcoin blockchain, and each block of the blockchain can be divided into a block header and a block body, and each block includes the previous block The hash value of the block and the hash value of this block, the blocks are linked through the hash value.

For example, the block header structure of each block in the blockchain can mainly include the following information, as shown in Table 3 below:

header information meaning number of bytes version number Indicates version information 4 parent hash Record the hash value of the previous block 32 Hash value of this block header Record the hash value of this block 32 Merkle tree root value Record the hash value of the Merkle tree root of all transactions in the current block 32 timestamp Record the generation time of the block 4

table 3

The block body of each block mainly contains registration information, the number of transactions and the details of the transaction. Further, in order to ensure the integrity and non-repudiation of transaction information, information digest technology can be used to store the summary information of registration information and transaction details on the block body, while the full amount of data is encrypted and stored in an offline physical database.

For example, the information contained in a block body can be as shown in Table 4 below:

body information meaning number of bytes Number of transactions Record the number of transactions in the current block 4 Registration/Transaction Details Record a summary of all registration/transaction information for the current block 80

Table 4

In the embodiment of the present invention, through the smart asset management system, the function of writing the smart asset registration information and transaction information to the Bitcoin blockchain can be technically realized by using the smart asset management system Bitcoin wallet address to the asset owner. It is realized by transferring M (such as 0.0000000001) units of bitcoins to the bitcoin wallet address of the recipient, and recording the detailed registration/transaction information into the bitcoin blockchain. When the registration information and/or transaction information is written into the corresponding blockchain, it can be implemented by using existing conventional means, which is not limited in this embodiment of the present invention.

It can be understood that the participants in the asset management system 2 may include the demander, owner, and guarantor involved in smart asset management, including individuals, groups, enterprises, and governments, as shown in FIG. 2 .

Hereinafter, the asset management method and system of the present invention will be described with reference to the embodiments and the accompanying drawings.

Referring to FIG. 3, an embodiment of the present invention provides an asset management method, which is applied to the above-mentioned blockchain-based asset management system. Specifically, the system is constructed based on the blockchain, and the method includes the following steps:

Step 301: Receive an asset transaction request submitted by an asset demander.

Step 302: Generate transaction information according to the asset transaction request.

Step 303: Sign the transaction information with a private key through the asset owner and at least one guarantor, so that in the case of obtaining the encrypted transaction information, the asset demander pays the asset owner for the asset The asset price corresponding to the transaction request.

It can be understood that the above transaction information may include at least smart asset information (including name, quantity, detailed description, ownership certification documents, etc.), the virtual account address of the asset owner and the virtual account address of the asset demander. The asset corresponding to the above asset transaction request may specifically be a smart asset. The above-mentioned guarantor may be a guarantor or a guarantor.

In the asset management method according to the embodiment of the present invention, when performing asset transactions, the generated transaction information can be signed with a private key by the asset owner and at least one guarantor, so that when the encrypted transaction information is obtained, the asset The demand side pays the corresponding asset price to the asset owner, so as to realize the asset transaction under the guarantee and improve the security of the transaction.

In this embodiment of the present invention, optionally, step 303 may include:

Through the asset owner and at least one guarantor, the transaction information is signed by the private key in turn.

In this way, with the help of multiple signatures on transaction information, the security of the transaction can be greatly guaranteed.

When implementing multiple signatures specifically, the method of orderly multiple digital signatures can be used. For example, assuming that an asset transaction information M is jointly signed by the smart asset owner A, the guarantor B and the guarantor C, the specific multi-signature process can be as follows:

S1: A first encrypts M with its own private key, the encrypted information is named SA, and then sends M and SA to B;

S2: After B receives M and SA, it first decrypts SA with A's public key to verify whether SA is generated by encryption with A's private key, and then after the verification passes (that is, it is generated by encryption with A's private key) , encrypt SA with its own private key, name the encrypted information SB, and send M and SB to C;

S3: After C receives M and SB, it first decrypts SB with B's public key to verify whether SB is generated by encryption with B's private key, and then after the verification passes (that is, it is generated by encryption with B's private key) , decrypt SA with A's public key to verify whether SA is generated by encryption with A's private key, and finally after the verification is passed (that is, encrypted with A's private key), encrypt SB with its own private key, and obtain Encrypted information SC.

In this embodiment of the present invention, optionally, after step 303, the method may further include:

Write the summary information of the encrypted transaction information to the blockchain.

In this way, when the information written into the blockchain is limited, the digest information of the encrypted transaction information is written into the blockchain by using the information digest technology, which can ensure the integrity and non-repudiation of the stored transaction information.

Optionally, after step 303, the method may further include:

regenerate the digital certificate for said asset;

Send the regenerated digital certificate of the asset to the asset demander.

In this way, after the transaction is completed, the digital certificate of the asset is regenerated and sent to the asset demander, that is, the current asset owner, which can ensure the authenticity and effectiveness of the asset management process.

Optionally, step 302 may include:

sending said asset transaction request to the asset owner;

Receive the confirmation information of the asset transaction request submitted by the asset owner, and the digital certificate of the asset corresponding to the asset transaction request;

Verify that the digital certificate of the asset is genuine and valid;

When the digital certificate of the asset is true and valid, the transaction information is generated.

The content included in the digital certificate of the asset can be referred to as shown in Table 1 above, which is not limited in this embodiment of the present invention. The above asset owner can be understood as the network node where the asset owner is located.

In this way, the security of the transaction process can be improved by means of the verification of the digital certificate of the asset.

Optionally, before step 301, the method may further include:

Receive registration information for assets submitted by asset owners;

According to the registration information of the asset, conduct ownership review of the asset;

When the ownership of the asset is approved, write the registration information of the asset into the blockchain, and generate a digital certificate for the asset;

A digital certificate for the asset is sent to the asset owner.

Among them, when the registration information of the asset is written into the blockchain, the information digest technology can be used to write the summary information of the registration information of the asset into the blockchain, so as to ensure the integrity and non-repudiation of the stored registration information. The content included in the above registration information can be referred to as shown in the above Table 2, which is not limited in the embodiment of the present invention.

In this way, the validity and security of the asset management process can be ensured by reviewing the ownership of the assets and providing corresponding data certificates to the asset owners.

It can be understood that by writing the summary information of transaction information and registration information into the blockchain, the transaction information and registration information can be stored in a distributed manner, and each node in the data management system can be read at any time through the key. It is jointly maintained by nodes with accounting functions in the system, and adopts blockchain encryption technology and consensus algorithm between accounting nodes to ensure the security of intelligent asset management and transaction process.

In the embodiment of the present invention, the core of the smart asset is to control the ownership. For the smart asset registered on the blockchain, the owner can register and trade at any time through the private key, and the user has more flexible options for managing the smart asset, which can be extremely The user experience is greatly improved, and at the same time, for enterprise users, the asset management system in the embodiment of the present invention has great commercial prospects and has strong promotion and practical value.

Below, the asset registration and release process and the asset transaction process of the embodiment of the present invention will be described with reference to FIG. 4 and FIG. 5 .

Referring to FIG. 4 , the asset registration and release process of the embodiment of the present invention may include the following steps:

Step 401: The asset owner creates an asset description on the corresponding network node, and submits a registration request of the smart asset to the asset management system; wherein, the registration request includes the registration information of the smart asset, and the content of the registration information can be as shown in Table 2 above. shown;

Step 402: The asset management system invokes the relevant interface of the third-party certification or audit agency to conduct ownership audit of the smart asset;

Step 403a: If the ownership of the smart asset is approved, return information indicating successful registration to the asset owner, and go to step 404;

Step 403b: If the ownership review of the smart asset fails, return information indicating the registration failure to the asset owner, and the process ends;

Step 404: the asset owner submits authorization information to the asset management system to instruct the asset management system to broadcast and publish the smart asset on the entire network;

Step 405: The asset management system writes the registration information of the smart asset into the corresponding blockchain (for example, in the Bitcoin blockchain, only the summary information of the registration information is written, and the full amount of data is encrypted using the offline physical database). save);

Step 406: The asset management system automatically triggers the registration management rules in the smart contract to generate a digital certificate unique to the entire network, and the content included in the digital certificate can be as shown in Table 1 above;

Step 407: The asset management system returns the digital certificate of the smart asset to the asset owner, and the smart asset is released successfully.

Referring to FIG. 5 , the asset transaction process of the embodiment of the present invention may include the following steps:

Step 501: The asset demander searches the corresponding network node for the smart assets that have been released by the asset management system;

Step 502: The asset management system returns the smart asset item matching the demand to the asset demander;

Step 503: the asset demander submits an asset transaction request to the asset management system;

Step 504: the asset management system sends an asset transaction request to the asset owner;

Step 505a: If the asset owner agrees, submit the confirmation information of the asset transaction request and the digital certificate of the corresponding smart asset to the asset management system, and go to step 506;

Step 505b: If the asset owner does not agree, return information indicating rejection of the transaction request to the asset demander through the asset management system, and the process ends;

Step 506: The asset management system verifies whether the digital certificate of the smart asset is true and valid; wherein, if it is verified that it is true and valid, go to step 507, otherwise the process ends;

Step 507: The asset management system generates transaction information, and through the asset owner and at least one guarantor, performs a private key signature on the generated transaction information to obtain encrypted transaction information;

Step 508: The asset demander pays a bitcoin (or legal currency) to the asset owner through the asset management system according to the price of the smart asset;

Step 509: Pay with Bitcoin to reach the transaction confirmation time; or pay with fiat currency, obtain the payment success confirmation information from the fiat currency transaction management agency;

Step 510: The asset management system writes the encrypted transaction information into the corresponding blockchain (for example, into the Bitcoin blockchain, only the summary information of the transaction information is written, and the full amount of data is encrypted using the offline physical database. save);

Step 511: The asset management system automatically triggers the transaction management rules in the smart contract, voids the digital certificate of the original owner, and generates a new digital certificate for the smart asset;

Step 512: The asset management system sends the new digital certificate to the asset demander, that is, the current asset owner.

Referring to FIG. 6 , an embodiment of the present invention further provides an asset management system, the system is constructed based on a blockchain, and the system includes:

The first receiving module 61 is configured to receive an asset transaction request submitted by an asset demander;

a generating module 62, configured to generate transaction information according to the asset transaction request;

The signature module 63 is used to sign the transaction information with a private key through the asset owner and at least one guarantor, so that in the case of obtaining the encrypted transaction information, the asset demander pays the asset owner to the asset owner The asset price corresponding to the asset transaction request.

In the asset management system according to the embodiment of the present invention, when performing asset transactions, the generated transaction information can be signed with a private key by the asset owner and at least one guarantor, so that when the encrypted transaction information is obtained, the asset The demand side pays the corresponding asset price to the asset owner, so as to realize the asset transaction under the guarantee and improve the security of the transaction.

In this embodiment of the present invention, optionally, the system further includes:

The writing module is used for writing the summary information of the encrypted transaction information into the blockchain.

Optionally, the generating module 62 includes:

a sending unit, configured to send the asset transaction request to the asset owner;

a receiving unit, configured to receive confirmation information of the asset transaction request submitted by the asset owner, and a digital certificate of the asset corresponding to the asset transaction request;

A verification unit for verifying whether the digital certificate of the asset is true and valid;

A generating unit, configured to generate the transaction information when the digital certificate of the asset is truly valid.

Optionally, the signature module 63 is specifically used for:

The transaction information is signed with a private key in turn by the asset owner and the at least one guarantor.

Optionally, the system further includes:

a second receiving module, configured to receive the asset registration information submitted by the asset owner;

an auditing module, configured to conduct ownership auditing of the asset according to the registration information of the asset;

a processing module, configured to write the registration information of the asset into the blockchain and generate a digital certificate of the asset when the ownership of the asset is approved;

A sending module, configured to send the digital certificate of the asset to the asset owner.

Optionally, the generating module 62 is further configured to: regenerate the digital certificate of the asset;

The sending module is further configured to send the regenerated digital certificate of the asset to the asset demander.

In addition, an embodiment of the present invention also provides an asset management system, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is processed by the processor Each process of the above-mentioned asset management method embodiment can be implemented when the device is executed, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

Specifically, as shown in 7, an embodiment of the present invention further provides an asset management system, the system is constructed based on a blockchain, and the system includes a bus 71, a transceiver 72, an antenna 73, a bus interface 74, Processor 75 and memory 76.

In this embodiment of the present invention, the asset management system further includes: a computer program stored on the memory 76 and executable on the processor 75 .

Specifically, when the computer program is executed by the processor 75, the following steps can be implemented:

Receive asset transaction requests submitted by asset demanders;

generating transaction information according to the asset transaction request;

The transaction information is signed with a private key by the asset owner and at least one guarantor, so that when the encrypted transaction information is obtained, the asset demander pays the asset owner corresponding to the asset transaction request asset prices.

In FIG. 7, the bus architecture (represented by bus 71), which may include any number of interconnected buses and bridges, will include one or more processors, represented by processors 75, and memory, represented by memory 76. The various circuits are linked together. The bus 71 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be described further herein. Bus interface 74 provides an interface between bus 71 and transceiver 72 . Transceiver 72 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 75 is transmitted on the wireless medium through the antenna 73 , and further, the antenna 73 also receives the data and transmits the data to the processor 75 .

The processor 75 is responsible for managing the bus 71 and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory 76 may be used to store data used by processor 75 in performing operations.

Optionally, the processor 75 may be a CPU, ASIC, FPGA or CPLD.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, each process of the foregoing asset management method embodiment can be achieved, and the same technical effect can be achieved, In order to avoid repetition, details are not repeated here.

Computer-readable media includes both permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the various embodiments of the present invention.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. An asset management method, applied to an asset management system, wherein the system is constructed based on a blockchain, and the method comprises: Receive asset transaction requests submitted by asset demanders; generating transaction information according to the asset transaction request; The transaction information is signed with a private key by the asset owner and at least one guarantor, so that when the encrypted transaction information is obtained, the asset demander pays the asset owner corresponding to the asset transaction request asset prices. 2. The method according to claim 1, characterized in that, after the transaction information is signed with a private key by the asset owner and at least one guarantor, the method further comprises: Write the summary information of the encrypted transaction information into the blockchain. 3. The method according to claim 1, wherein the generating transaction information according to the asset transaction request comprises: sending the asset transaction request to the asset owner; Receive the confirmation information of the asset transaction request submitted by the asset owner, and the digital certificate of the asset corresponding to the asset transaction request; Verify that the digital certificate of the asset is genuine and valid; When the digital certificate of the asset is true and valid, the transaction information is generated. 4. The method according to claim 1, wherein the private key signature of the transaction information by the asset owner and at least one guarantor comprises: The transaction information is signed with a private key in turn by the asset owner and the at least one guarantor. 5. The method according to claim 1, wherein, before receiving the asset transaction request submitted by the asset demander, the method further comprises: receiving registration information for the asset submitted by the asset owner; According to the registration information of the asset, conduct ownership review of the asset; When the ownership of the asset is approved, write the registration information of the asset into the blockchain, and generate a digital certificate for the asset; A digital certificate for the asset is sent to the asset owner. 6. The method according to claim 5, wherein after the asset demander pays the asset owner the asset price corresponding to the asset transaction request, the method further comprises: regenerate the digital certificate for said asset; Send the regenerated digital certificate of the asset to the asset demander. 7. An asset management system, wherein the system is constructed based on a blockchain, and the system comprises: a first receiving module, configured to receive an asset transaction request submitted by an asset demander; a generating module, configured to generate transaction information according to the asset transaction request; The signature module is used to sign the transaction information with a private key through the asset owner and at least one guarantor, so that in the case of obtaining the encrypted transaction information, the asset demander pays the asset owner to the asset owner. The asset price corresponding to the asset transaction request described above. 8. The system of claim 7, wherein the system further comprises: a second receiving module, configured to receive the asset registration information submitted by the asset owner; an auditing module, configured to conduct ownership auditing of the asset according to the registration information of the asset; a processing module, configured to write the registration information of the asset into the blockchain and generate a digital certificate of the asset when the ownership of the asset is approved; A sending module, configured to send the digital certificate of the asset to the asset owner. 9. An asset management system, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, when the computer program is executed by the processor, the The steps of the asset management method of any one of claims 1 to 6. 10. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the asset management method according to any one of claims 1 to 6 are implemented.

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