TWI851221B - Multi-security control electronic document deposit evidence system based on block chain and method thereof - Google Patents

Abstract

A multi-security control electronic document deposit evidence system based on block chain and a method thereof are provided. Electronic document is stored through block chain network. Electronic document address and deposit evidence request are provided to third party professional signoff device through credential management platform from electronic device. Electronic document is received according to electronic document address by third party professional signoff device from block chain network. Third party deposit evidence document is signed off with office signature and depositor signature and third party deposit evidence document is stored through block chain network. Third party deposit evidence document is received according to third party deposit evidence document address by credential management platform through block chain network. Platform deposit evidence document is signed off with platform signature and platform timestamp and metadata is generated according to platform deposit evidence document by credential management platform. Signoff token is generated with metadata, signoff index and owner index and signoff token is stored through block chain network. Owner token is generated with metadata and owner index and owner token is stored through block chain network. Owner token is transferred to electronic device from credential management platform and signoff token is transferred to third party professional signoff device from credential management platform. Therefore, the efficiency of multi-security control electronic document deposit evidence system based on block chain may be achieved.

Description

Electronic document storage system and method based on blockchain and multi-security control

An electronic document storage system and method thereof, in particular, an electronic document storage system and method thereof based on blockchain and multi-security control.

In the past, companies used paper and physical services to conduct important and sensitive business operations such as legal, financial, identity recognition, and rights transfer in order to prevent forgery and ensure the authenticity and integrity of documents so that they could serve as objective evidence when necessary.

For paper documents to carry out the above operations, they need to be signed by all parties and then approved by third-party professionals (such as lawyers, patent attorneys, accountants, architects, etc.). In addition to being kept by each party, the firm will keep a copy to provide transfer and evidence for subsequent documents. The process of signatures by all parties and approval by third-party professionals often takes a lot of time, and the document exchange process needs to further bear the risk of loss.

In recent years, in response to the development of zero-contact economy caused by the epidemic, enterprises have further promoted and used electronic signatures on a large scale. However, whether the electronic signature is signed by the person himself, whether the signing process of the electronic document is transparent and verifiable, whether the signed electronic document is complete, how to integrate the signing process of third-party professionals, how to provide third-party review or verification of the signed electronic document, and even whether the electronic document can be managed in digital form are not issues that can be solved by electronic signature technology alone.

In summary, it can be seen that the existing technology has long existed the problem of missing the evidence process when only using electronic signatures to store electronic documents. Therefore, it is necessary to propose improved technical means to solve this problem.

In view of the fact that the existing technology only uses electronic signatures to store electronic documents, there is still a problem of missing storage process. The present invention discloses an electronic document storage system and method based on blockchain and multi-security control, wherein:

The electronic document notarization system based on blockchain and multi-security control disclosed in the present invention includes: a blockchain network, an electronic device, a third-party professional signing device and a certificate management platform. The certificate management platform further includes: a receiving module, a blockchain storage module, a signing module, a metadata generation module, a token generation module and a transmission module.

The blockchain network stores electronic documents signed with the holder's signature, third-party certification documents, holder tokens, and signature tokens in a decentralized manner.

The electronic device uses the login information to log in to the certificate management platform, links the electronic document signed with the holder's signature to the blockchain network to obtain the corresponding electronic document address, provides the electronic document address and the certificate request to the certificate management platform, receives the holder's token address from the certificate management platform, and obtains the holder's token on the blockchain network based on the holder's token address.

The third-party professional signing device uses the signing login information to log in to the certificate management platform, receives the certificate request and the electronic file address from the certificate management platform, obtains the electronic file from the blockchain network according to the electronic file address, signs the electronic file with the firm's signature and the witness's signature as a third-party certificate file, links the third-party certificate file to the blockchain network to obtain the corresponding third-party certificate file address, provides the third-party certificate file address to the certificate management platform, receives the signing token address from the certificate management platform, and obtains the signing token on the blockchain network according to the signing token address.

The receiving module of the certificate management platform receives the electronic file address and the certificate request from the electronic device, and receives the electronic file address of the third-party certificate from the third-party professional signing device; the blockchain storage module of the certificate management platform obtains the third-party certificate file from the blockchain network according to the third-party certificate file address, and links the holder token to the blockchain network to obtain the corresponding holder token address, and links the signing token to the blockchain network to obtain the corresponding signing token address; the signing module of the certificate management platform uses the platform signature and platform timestamp to sign the third-party electronic file for the platform The certificate management platform generates a certificate file; the interpretation data generation module of the certificate management platform generates the platform certificate file into the interpretation data; the token generation module of the certificate management platform generates the signature index corresponding to the signature login information and the holder index and interpretation data corresponding to the login information into the signature token, and generates the holder index and interpretation data into the holder token; and the transmission module of the certificate management platform transmits the certificate request and the electronic document address to the third-party professional signing device, transmits the holder token address to the electronic device, and transmits the signature token address to the third-party professional signing device.

The electronic document storage method based on blockchain and multi-security control disclosed in the present invention comprises the following steps:

First, the electronic device links the electronic document signed with the holder's signature to the blockchain network to obtain the corresponding electronic document address; then, the electronic device uses the login information to log in to the certificate management platform; then, the electronic device provides the electronic document address and the certificate request to the certificate management platform; then, the certificate management platform transmits the certificate request and the electronic document address to the third-party professional signing device; then, the third-party professional signing device sends the electronic document address from the blockchain network to the third-party professional signing device. Obtain the electronic document; then, the third-party professional signing device uses the firm's signature and the witness's signature to sign the electronic document as a third-party evidence document; then, the third-party professional signing device links the third-party evidence document to the blockchain network to obtain the corresponding third-party evidence document address; then, the third-party professional signing device uses the signing login information to log in to the certificate management platform; then, the third-party professional signing device transmits the third-party evidence document address to the certificate management platform Then, the certificate management platform obtains the third-party certificate file on the blockchain network according to the third-party certificate file address; Then, the certificate management platform uses the platform signature and platform timestamp to sign the third-party electronic file as a platform certificate file; Then, the certificate management platform generates the platform certificate file as interpretation data; Then, the certificate management platform generates the signature index corresponding to the signature login information and the holder index and interpretation data corresponding to the login information as a signature token; Next, the certificate management platform links the signature token to the blockchain network to obtain the corresponding signature token address; then, the certificate management platform generates the holder token with the holder index and interpretation data; then, the certificate management platform links the holder token to the blockchain network to obtain the corresponding holder token address; then, the certificate management platform transmits the holder token address to the electronic device; finally, the certificate management platform transmits the signature token address to the third-party professional signing device.

The system and method disclosed in the present invention are as described above. The electronic file is stored in the blockchain network. The electronic device provides the electronic file address and the evidence request to the third-party professional signing device through the certificate management platform. The electronic file is obtained according to the electronic file address. The electronic file is signed by the firm and the third-party evidence file signed by the witness is stored in the blockchain network. The certificate management platform obtains the third-party evidence file according to the third-party evidence file address. The platform generates interpretation data for the platform certificate file with the platform signature and platform timestamp for the third-party electronic file. The interpretation data is used in conjunction with the approval index and the holder index to generate the approval token and is stored by the blockchain network. The interpretation data is used in conjunction with the holder index to generate the holder token and is stored by the blockchain network. The certificate management platform transmits the holder token address to the electronic device and transmits the approval token address to the third-party professional approval device.

Through the above-mentioned technical means, the present invention can achieve the technical effect of electronic document storage based on blockchain and multi-security control.

The following will be used in conjunction with drawings and embodiments to explain the implementation of the present invention in detail, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

The following first describes the electronic document storage system based on blockchain and multi-security control disclosed in the present invention, and please refer to "Figure 1", which is a system block diagram of the electronic document storage system based on blockchain and multi-security control of the present invention.

The electronic document notarization system based on blockchain and multi-security disclosed in the present invention comprises: a blockchain network 10, an electronic device 20, a third-party professional signing device 30 and a certificate management platform 40. The certificate management platform 40 further comprises: a receiving module 41, a blockchain storage module 42, a signing module 43, a metadata generation module 44, a token generation module 45 and a transmission module 46.

The electronic device 20, the third-party professional signing device 30, and the certificate management platform 40 are connected to each other through a wired transmission method or a wireless transmission method. The aforementioned wired transmission method is, for example, a cable network, an optical fiber network, etc., and the aforementioned wireless transmission method is, for example, Wi-Fi, a mobile communication network (for example, 3G, 4G, 5G, etc.), etc., which are only used as examples here, and the scope of application of the present invention is not limited thereto; the aforementioned electronic device 20 and the third-party professional signing device 30 are, for example, a computer, a laptop, a tablet computer, a smart phone, etc., and the aforementioned certificate management platform 40 is, for example, implemented through a server, which is only used as an example here, and the scope of application of the present invention is not limited thereto.

Please refer to "Figure 2", which is a schematic diagram of the electronic document storage architecture based on blockchain and multi-security control of the present invention.

The electronic device 20 links the electronic file 51 signed with the holder's signature to the blockchain network 10 to obtain the corresponding electronic file address 52. The electronic device 20 uses the login information to log in to the certificate management platform 40. The aforementioned login information is, for example, an account number and password, a device identification code (e.g., IMEI, MAC, etc.), etc., which is only used as an example here and is not intended to limit the scope of application of the present invention.

After the electronic device 20 uses the login information to log into the credential management platform 40 , the electronic device 20 can provide the electronic file address 52 and the evidence storage request 53 to the credential management platform 40 , and the receiving module 41 of the credential management platform 40 can receive the electronic file address 52 and the evidence storage request 53 from the electronic device 20 .

Next, the transmission module 46 of the certificate management platform 40 transmits the certificate storage request 53 and the electronic file address 52 to the third-party professional signing device 30. The transmission module 46 of the certificate management platform 40 can transmit the certificate storage request 53 and the electronic file address 52 to the third-party professional signing device 30 via email, text message, etc. This is only an example and does not limit the scope of application of the present invention.

When the third-party professional signing device 30 receives the evidence request 53 and the electronic file address 52 from the certificate management platform 40, the third-party professional signing device 30 can obtain the electronic file 51 (the electronic file is signed with the holder's signature) from the blockchain according to the electronic file address 52. The third-party professional signing device 30 uses the firm's signature and the witness's signature to sign the electronic file 51 as a third-party evidence file 54. The third-party professional signing device 30 links the third-party evidence file 54 to the blockchain network 10 to obtain the corresponding third-party evidence file address 55. After the third-party professional signing device 30 uses the signing login information to log in to the certificate management platform 40, the third-party professional signing device 30 can provide the third-party evidence file address 55 to the certificate management platform 40.

It is worth noting that the firm's signature and the witness's signature used by the third-party professional signing device 30 are issued through the credential management platform 40. In addition, the witness operating the third-party professional signing device 30 (such as lawyers, patent attorneys, accountants, architects, etc., which are only used as examples and are not intended to limit the scope of application of the present invention) can further verify the electronic document 51. When the electronic document 51 is verified to be correct, the third-party professional signing device 30 will use the firm's signature. And the attestor signs the electronic document 51 as a third-party attestation document 54. Conversely, when the electronic document 51 is verified to be incorrect, the third-party professional signing device 30 can generate content error information 56 and provide it to the electronic device 20 through the certificate management platform 40. The electronic device 20 can correct the electronic document according to the content error information 56 and re-sign it with the holder's signature, so as to provide the electronic document 51 signed with the holder's signature and the attestation request 53 to the certificate management platform 40 again.

When the receiving module 41 of the certificate management platform 40 receives the third-party certificate electronic file address 55 from the third-party professional signing device 30, the blockchain storage module 42 of the certificate management platform 40 will obtain the third-party certificate file 54 in the blockchain network 10 according to the third-party certificate file address 55.

Next, the signing module 43 of the certificate management platform 40 uses the platform signature and the platform timestamp to sign the third-party electronic file 54 as a platform certificate file, and the interpretation data generation module 44 of the certificate management platform 40 generates the platform certificate file as interpretation data.

It is worth noting that the interpretation data records include the identity verification records of each signatory (verification information, verification method, etc.), the holder's signature information, the firm's signature information, the depositor's signature information, the platform's signature information, and the platform's timestamp information. These are only given as examples and are not intended to limit the scope of application of the present invention.

Next, the token generation module 45 of the certificate management platform 40 generates a signature token 57 from the signature index corresponding to the login information and the holder index and interpretation data corresponding to the login information, and generates a holder token 58 from the holder index and interpretation data. The blockchain storage module 42 of the certificate management platform 40 links the signature token 57 to the blockchain network 10 to obtain the corresponding signature token address 571, and the blockchain storage module 42 of the certificate management platform 40 links the holder token 58 to the blockchain network 10 to obtain the corresponding holder token address 581.

The transmission module 46 of the certificate management platform 40 then transmits the holder token address 581 to the electronic device 20, and the electronic device 20 can obtain the holder token 58 on the blockchain network 10 according to the holder token address 581. The transmission module 46 of the certificate management platform 40 then transmits the approval token address 571 to the third-party professional approval device 30, and the third-party professional approval device 30 can obtain the approval token 57 on the blockchain network 10 according to the approval token address 571, thereby completing the certification of the electronic document signed with the holder's signature.

Next, the operation method of the present invention will be described below, and please refer to "Figure 3A" to "Figure 3C" at the same time. "Figure 3A" to "Figure 3C" are flowcharts of the electronic document storage method based on blockchain and multi-security control of the present invention.

The electronic document storage method based on blockchain and multi-security control disclosed in the present invention comprises the following steps:

First, the electronic device links the electronic document signed with the holder's signature to the blockchain network to obtain the corresponding electronic document address (step 601); then, the electronic device uses the login information to log in to the certificate management platform (step 602); then, the electronic device provides the electronic document address and the certificate request to the certificate management platform (step 603); then, the certificate management platform transmits the certificate request and the electronic document address to the third-party professional signing device (step 604); then, the third-party professional signing device obtains the electronic document address from the blockchain network according to the electronic document address. Sub-file (step 605); then, the third-party professional signing device uses the firm's signature and the witness's signature to sign the electronic file as a third-party evidence file (step 606); then, the third-party professional signing device links the third-party evidence file to the blockchain network to obtain the corresponding third-party evidence file address (step 607); then, the third-party professional signing device uses the signing login information to log in to the certificate management platform (step 608); then, the third-party professional signing device transmits the third-party evidence file address to the certificate management platform (step 609); ); Then, the certificate management platform obtains the third-party certificate file on the blockchain network according to the third-party certificate file address (step 610); Then, the certificate management platform uses the platform signature and platform timestamp to sign the third-party electronic file as a platform certificate file (step 611); Then, the certificate management platform generates the platform certificate file as interpretation data (step 612); Then, the certificate management platform generates the signature index corresponding to the signature login information and the holder index and interpretation data corresponding to the login information as a signature token (step 613); Then, The certificate management platform links the signature token to the blockchain network to obtain the corresponding signature token address (step 614); then, the certificate management platform generates the holder token with the holder index and interpretation data (step 615); then, the certificate management platform links the holder token to the blockchain network to obtain the corresponding holder token address (step 616); then, the certificate management platform transmits the holder token address to the electronic device (step 617); finally, the certificate management platform transmits the signature token address to the third-party professional signing device (step 618).

In summary, it can be seen that the electronic file of the present invention is stored by the blockchain network, the electronic device provides the electronic file address and the evidence request to the third-party professional signing device through the certificate management platform, obtains the electronic file according to the electronic file address, and uses the firm's signature and the third-party evidence file signed by the witness to the electronic file. The blockchain network stores the third-party evidence file, and the certificate management platform obtains the third-party evidence file according to the third-party evidence file address. , the platform certificate file with platform signature and platform timestamp is used to generate interpretation data for third-party electronic documents. The interpretation data is used in conjunction with the approval index and the holder index to generate the approval token and is stored by the blockchain network. The interpretation data is used in conjunction with the holder index to generate the holder token and is stored by the blockchain network. The certificate management platform transmits the holder token address to the electronic device and transmits the approval token address to the third-party professional approval device.

This technical means can be used to solve the problem of the previous technology that only electronic signatures are used for electronic document notarization and the lack of notarization process, thereby achieving the technical effect of electronic document notarization based on blockchain and multi-security control.

Although the implementation methods disclosed in the present invention are as above, the above contents are not used to directly limit the scope of patent protection of the present invention. Any person with ordinary knowledge in the technical field to which the present invention belongs can make slight changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention. The scope of patent protection of the present invention shall still be defined by the scope of the attached patent application.

10: Blockchain network 20: Electronic device 30: Third-party professional signing device 40: Certificate management platform 41: Receiving module 42: Blockchain storage module 43: Signing module 44: Interpretation data generation module 45: Token generation module 46: Transmission module 51: Electronic document 52: Electronic document address 53: Certificate request 54: Third-party certificate document 55: Third-party certificate document address 56: Content error information 57: Signature token 571: Signature token address 58: Holder token 581: Holder token address Steps 601: The electronic device links the electronic document signed with the holder's signature to the blockchain network to obtain the corresponding electronic document address Step 602: The electronic device uses the login information to log in to the certificate management platform Step 603: The electronic device provides the electronic document address and the certificate request to the certificate management platform Step 604: The certificate management platform transmits the certificate request and the electronic document address to the third-party professional signing device Step 605: The third-party professional signing device obtains the electronic document from the blockchain network based on the electronic document address Step 606: The third-party professional signing device uses the firm's signature and the signature of the certifier to sign the electronic document as a third-party certificate document Step 607: The third-party professional signing device links the third-party proof file to the blockchain network to obtain the corresponding third-party proof file address Step 608: The third-party professional signing device uses the signing login information to log in to the certificate management platform Step 609: The third-party professional signing device transmits the third-party proof file address to the certificate management platform Step 610: The certificate management platform obtains the third-party proof file on the blockchain network based on the third-party proof file address Step 611: The certificate management platform uses the platform signature and platform timestamp to sign the third-party electronic file as a platform proof file Step 612: The certificate management platform generates the platform proof file as interpretation data Step 613: The certificate management platform generates a signature token from the signature index corresponding to the signature login information and the holder index and interpretation data corresponding to the login information Step 614: The certificate management platform links the signature token to the blockchain network to obtain the corresponding signature token address Step 615: The certificate management platform generates a holder token from the holder index and interpretation data Step 616: The certificate management platform links the holder token to the blockchain network to obtain the corresponding holder token address Step 617: The certificate management platform transmits the holder token address to the electronic device Step 618: The certificate management platform transmits the signature token address to a third-party professional signing device

Figure 1 shows a system block diagram of the electronic document storage system based on blockchain and multi-security control of the present invention. Figure 2 shows a schematic diagram of the architecture of the electronic document storage system based on blockchain and multi-security control of the present invention. Figures 3A to 3C show a method flow chart of the electronic document storage method based on blockchain and multi-security control of the present invention.

10: Blockchain network

20: Electronic devices

30: Third-party professional signing device

40: Certificate management platform

41: Receiving module

42: Blockchain storage module

43:Signature module

44: Interpretation data generation module

45:Symbol generation module

46:Transmission module

Claims (10)

An electronic document notarization system based on blockchain and multi-security control, comprising: A blockchain network, which stores an electronic document signed with a holder's signature, a third-party notarization document, a holder's token, and a verification token in a distributed manner; An electronic device, which uses a login information to log in to a certificate management platform, links the electronic document signed with the holder's signature to the blockchain network to obtain a corresponding electronic document address, provides the electronic document address and a notarization request to the certificate management platform, receives a holder's token address from the certificate management platform, and obtains the holder's token in the blockchain network according to the holder's token address; A third-party professional signing device uses a signing login information to log in to the certificate management platform, receives the certificate request and the electronic file address from the certificate management platform, obtains the electronic file from the blockchain network according to the electronic file address, signs the electronic file with a firm signature and a certifier signature as the third-party certificate file, links the third-party certificate file to the blockchain network to obtain a corresponding third-party certificate file address, provides the third-party certificate file address to the certificate management platform, receives a signing token address from the certificate management platform, and obtains the signing token in the blockchain network according to the signing token address; and The certificate management platform further includes: A receiving module receives the electronic file address and the certification request from the electronic device, and receives the third-party certification electronic file address from the third-party professional signing device; A blockchain storage module obtains the third-party certification file from the blockchain network according to the third-party certification file address, links the holder token to the blockchain network to obtain the corresponding holder token address, and links the approval token to the blockchain network to obtain the corresponding approval token address; A signing module signs the third-party electronic file with a platform signature and a platform timestamp to form a platform certification file; A metadata generation module generates the platform certification file into a metadata; A token generation module generates a signature index corresponding to the signature login information and a holder index corresponding to the login information and the interpretation data into the signature token, and generates the holder index and the interpretation data into the holder token; and A transmission module transmits the certification request and the electronic document address to the third-party professional signing device, transmits the holder token address to the electronic device, and transmits the signature token address to the third-party professional signing device. An electronic document notarization system based on blockchain and multi-security control as described in claim 1, wherein the firm's signature and the notarizer's signature are issued through the certificate management platform. As described in claim 1, the electronic document notarization system based on blockchain and multi-security control, wherein the third-party professional signing device further includes when the electronic document is verified to be correct, the third-party professional signing device uses the firm's signature and the witness's signature to sign the electronic document as the third-party notarization document. As described in claim 1, the electronic document notarization system based on blockchain and multi-security control, wherein the third-party professional signing device further includes generating a content error message when the electronic document verification is incorrect, and providing the content error message to the electronic device through the certificate management platform. An electronic document notarization system based on blockchain and multi-security control as described in claim 1, wherein the interpretation data records the identity verification record of each signatory, the holder's signature information, the firm's signature information, the notarization person's signature information, the platform's signature information, and the platform's timestamp information. A method for electronic document storage based on blockchain and multi-security control, comprising the following steps: The electronic device links an electronic document signed with a holder's signature to a blockchain network to obtain a corresponding electronic document address; An electronic device uses a login information to log in to a certificate management platform; The electronic device provides the electronic document address and a storage request to a certificate management platform; The certificate management platform transmits the storage request and the electronic document address to a third-party professional signing device; The third-party professional signing device obtains the electronic document from the blockchain network according to the electronic document address; The third-party professional signing device uses a firm signature and a certifier signature to sign the electronic document as a third-party storage document; The third-party professional signing device links the third-party certificate file to the blockchain network to obtain a corresponding third-party certificate file address; The third-party professional signing device uses a signing login information to log in to the certificate management platform; The third-party professional signing device transmits the third-party certificate file address to the certificate management platform; The certificate management platform obtains the third-party certificate file in the blockchain network according to the third-party certificate file address; The certificate management platform uses a platform signature and a platform timestamp to sign the third-party electronic file as a platform certificate file; The certificate management platform generates the platform certificate file as an interpretation data; The certificate management platform generates a signing token with a signing index corresponding to the signing login information and a holder index corresponding to the login information and the interpretation data; The certificate management platform links the signature token to the blockchain network to obtain the corresponding signature token address; The certificate management platform generates a holder token by combining the holder index and the interpretation data; The certificate management platform links the holder token to the blockchain network to obtain the corresponding holder token address; The certificate management platform transmits the holder token address to the electronic device; and The certificate management platform transmits the signature token address to the third-party professional signing device. As described in claim 6, the electronic document notarization method based on blockchain and multi-security control, wherein the firm's signature and the notarizer's signature are issued through the certificate management platform. As described in claim 6, the electronic document notarization method based on blockchain and multi-security control, wherein the third-party professional signing device further includes when the electronic document is verified to be correct, the third-party professional signing device uses the firm's signature and the notarizer's signature to sign the electronic document as the third-party notarization document. As described in claim 6, the electronic document notarization method based on blockchain and multi-security control, wherein the third-party professional signing device further includes generating a content error message when the electronic document verification is incorrect, and providing the content error information to the electronic device through the certificate management platform. As described in claim 6, the electronic document notarization method based on blockchain and multi-security control, wherein the interpretation data records the identity verification record of each signatory, the holder's signature information, the firm's signature information, the notarizer's signature information, the platform's signature information, and the platform's timestamp information.

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