TW202025061A - Blockchain technology-based digital certificate management method, system, computer program product, and computer readable recording medium - Google Patents

Abstract

A blockchain technology-based digital certificate management system includes a receiving module, a hash value calculating module, a delivering module, and an inquiry data generating module. The system serves to execute the following method which includes: a hash value calculating step and a processing step. The hash value calculating step includes: generating a hash value by the hash value calculating module of the digital certificate management system after a certificate data is received by the receiving module. The processing step includes: storing the hash value, with a respective timestamp, on each node of a blockchain system by the delivering module of the digital certificate management system, and generating an inquiry code corresponding to the hash value by the inquiry data generating module of the digital certificate management system so that verification can be performed in the blockchain system by entering the inquiry code.

Description

Digital certificate management method, system, computer program product and computer readable recording medium based on blockchain technology

The present invention relates to blockchain technology, in particular to digital certificate management methods, systems, computer program products and computer readable recording media based on blockchain technology.

As each school only enters the school name and student-related performance deeds when making various awards or certificates, and lacks an effective anti-counterfeiting check mechanism, unscrupulous individuals or forgery groups sometimes take the opportunity to forge graduation certificates. Although manual verification can be performed at the issuing unit, the verification procedure is cumbersome and time-consuming, making it difficult to confirm immediately.

At present, some companies have developed "electronic certificates, radio frequency identification anti-counterfeiting devices and systems" such as the Republic of China New Patent Announcement No. M389305. The system is suitable for judging the authenticity of an electronic certificate to be identified with a radio frequency identification tag. The system includes: A reader, a verification platform and a verifier, the reader is used to read a unique identification code stored in the radio frequency identification tag. The verification platform includes a database, and the database stores the registration unique identification codes exclusive to a plurality of legal electronic certificates. The verifier is electrically connected to the database and receives the unique identification code, and according to the unique identification code of the radio frequency identification tag, finds out whether there is the same registered unique identification code from the database. If so, it means the electronic device to be identified The certificate is genuine.

However, the identification code stored in the verification platform of the previous case may be tampered with. In addition, the system needs to be used with a reader for reading the radio frequency identification tag, which is inconvenient to use and costly.

Therefore, in order to improve the credibility of certificate data, the inventor proposes a digital certificate management method based on blockchain technology, which includes: a hash value calculation step: a certificate data is hashed by a digital certificate management system The value calculation module calculates and generates a hash value; and a processing step: the hash value is stored in each node of a blockchain system by a sending module of the digital certificate management system and all nodes contain different time stamps, and A query information generation module of the digital certificate management system generates a query code corresponding to the hash value.

Furthermore, it further includes a verification step: when a blockchain verification module of the digital certificate management system receives a query request and the query code, the blockchain verification module queries the blockchain system according to the query code Corresponding to the aforementioned hash value, if there is, a notification message for verifying compliance is generated.

Furthermore, in the processing step, the query information generating module further generates a Quick Response Code (QR Code) corresponding to the query code, so as to send the query code to the blockchain verification module.

Furthermore, it further includes an adding step: using an adding module to make the quick response matrix code add to the certificate data or/and a paper certificate corresponding to the certificate data.

The present invention is also a computer program product or a computer-readable recording medium, which stores a program. When the computer loads and executes the program, the digital certificate management based on blockchain technology as described above can be completed method.

The present invention is also a digital certificate management system based on blockchain technology, including: a receiving module, a hash value calculation module, a sending module and a query information generating module. The receiving module is used for receiving a certificate data. The hash value calculation module is connected to the receiving module to calculate a hash value according to the certificate data. The sending module is connected to the hash value calculation module, and the hash value is stored in each node of a blockchain system and all contain different time stamps. The query information generating module is connected to the sending module to generate a query code corresponding to the hash value.

Further, it further includes a blockchain verification module connected to the blockchain system for receiving a query request and the query code, the blockchain verification module according to the query code Query the corresponding hash value in the blockchain system, and if there is, generate a notification message for verifying compliance.

Further, the query information generating module generates a Quick Response Code (QR Code) corresponding to one of the query codes, so as to send the query code to the blockchain verification module.

Further, it further includes an adding module connected to the query information generating module, so that the quick response matrix code is added to the certificate data or/and a paper certificate corresponding to the certificate data.

According to the above technical features, the following effects can be achieved:

1. Utilize the non-tampering feature of the distributed ledger of the blockchain system to make the certificate information almost impossible to forge. In addition to improving the credibility of various paper certificates, the paper certificates can also be made electronically. It reduces the trouble of losing all kinds of certificates, and brings more convenience to all kinds of certificate owners.

2. The matrix code (Quick Response Code, QR Code) containing the query code can be used to send the query code to the blockchain verification module.

Based on the above technical features, the main effects of the digital certificate management method, system, computer program product and computer readable recording medium of the present invention based on blockchain technology will be clearly presented in the following embodiments.

Please refer to the first figure, which discloses a digital certificate management system based on blockchain technology (also referred to as a digital certificate management system (100)) in an embodiment of the present invention, including: a certificate issuance processing subsystem (1), a Unit administrator authority webpage subsystem (2), a user multi-faceted management and tracking subsystem (3), a digital document preservation and protection platform subsystem (4), and a digital history traceability management subsystem (5).

The certification processing subsystem (1) includes a receiving module (11), a hash value calculation module (12), a sending module (13), a query information generation module (14), and an injection module Group (15). The receiving module (11) is used for receiving a certificate data. The hash value calculation module (12) is connected to the receiving module (11) to calculate and generate a hash value based on the certificate data. Specifically, the certificate data is input into a hash function to calculate a fixed value The output of the length hash value, the expected hash value is like an identification code that cannot be faked, and each document has its special hash value and cannot be forged. The sending module (13) is connected to the hash value calculation module (12), and the hash value is stored in each node of a blockchain system and all contain different time stamps. The query information generation module (14) is connected to the sending module (13) to generate a query code corresponding to the hash value. In detail, the query information generation module (14) generates a corresponding query code A Quick Response Code (QR Code) for sending the query code. The adding module (15) is connected to the query information generating module (14), so that the quick response matrix code is added to the certificate data or/and a paper certificate corresponding to the certificate data.

The unit administrator authority webpage subsystem (2) includes a certification unit screening web module (21), a certification function classification web module (22), a blockchain verification module (23), and an account data The library extraction module (24) and a management unit update module (25).

The user multi-directional management and tracking subsystem (3) includes a user real-time query module (31), a user real-time notification module (32) and a digital certificate service authority module (33). The user real-time query module (31) can be used for users to query the relevant data of the certificate online in real time. The user instant notification module (32) is used to send a notification message to one of the preset electronic mailboxes during certificate query or/and account login, thereby strictly checking the user account. The digital certificate service authority module (33) is used for users to set authority for others to read or/and download certificate data.

The digital file security protection platform subsystem (4) includes a digital file access module (41), a digital file control module (42) and a digital file verification module (43). The digital file access module (41) allows users to access various file files protected by the system at any time. The digital document control module (42) allows managers to periodically filter various document files for online users to download and use. The digital document verification module (43) can use a self-made verification system to provide layers of security protection measures for the files, and then upload the security files to the aforementioned digital certificate management system (100).

The digital history traceability management subsystem (5) includes a digital history upload module (51), a digital history access module (52), a digital history sharing module (53), and a digital history query module (54). ). The digital resume upload module (51): Users can fill in personal resume data in the format provided by the system and upload it to the special area for enterprises to refer to. The digital resume access module (52): Encourage users to fill in more resumes online, and open specific schools, companies, and manufacturers to review, modify, and suggest online permissions. The digital history sharing module (53): Users can open specific permissions to share and specify shared objects to browse files in real time. The digital resume query module (54): for companies and manufacturers to quickly and efficiently find the most suitable talents in the shortest time, using keywords such as expertise, school, and region in the resume.

Please continue to refer to the second figure. The following further describes the digital certificate management method based on the blockchain technology in the embodiment of the present invention, which uses the aforementioned digital certificate management system (100). In implementation, it can be programmed as a program and stored in a computer program product or computer readable recording medium. After the computer loads and executes the program, the digital certificate management method based on blockchain technology in the embodiment of the present invention can be completed. The method mainly includes a certificate file (S00), a hash value calculation step (S01), and a processing Step (S02), a filling step (S03) and a verification step (S04).

Please refer to the third picture with the first picture, in detail:

The certificate file creation: a certificate data can be created based on a paper certificate provided by a certificate issuing unit (A) or a user (B), and the certificate data can be stored in the receiving module (11). For example, the scanner scans the paper certificate to generate the aforementioned certificate data. Or, the certificate issuing unit (A) provides a list of expected certificates to the aforementioned digital certificate management system (100), and then the aforementioned digital certificate management system (100) performs certificate issuance.

The hash value calculation step: a certificate data is calculated by the hash value calculation module (12) to generate a hash value. In detail, this embodiment uses the smart contract platform of Ethereum to develop and write the so-called smart contract, and the smart contract that is written is executed through the Ethereum Virtual Machine (EVM). Here, the hash value is to first generate the binary system of the aforementioned certificate information (from the aforementioned paper certificate) and the certificate details (such as school name, student name, date of birth, date of study, English name, date of issue, etc.) The values of are connected in series with each other, and then the hash function is used to generate a fixed-length hash value, and then the hash value is stored in the blockchain system (200) described later through the smart contract, and is stored in the smart contract In the list of valid certificates, add the record corresponding to the aforementioned hash value.

The processing step: by the aforementioned sending module (13), the hash value is stored in each node of a blockchain system (200) and contains different time stamps, and the query information generation module (14) generates a pair The query code should be one of the hash values.

The remarking step: by the aforementioned remarking module (15), the quick response matrix code containing the query code is added to the certificate data or/and a paper certificate corresponding to the certificate data (for example, printing and adding Note on the paper certificate or attached to the paper certificate).

The verification step: when the blockchain verification module (23) receives a query request and the query code, the blockchain verification module (23) queries the blockchain system (200) correspondingly according to the query code If there is the aforementioned hash value, it will generate a notification message to verify compliance and display the aforementioned certificate data stored in advance for the user (B) or verification unit (C) (such as companies, schools, etc.) to check whether the content is consistent. The aforementioned notification message and the aforementioned certificate information can only be sent to pre-registered mailboxes to avoid direct exposure of personal information. In detail, when verifying, it will first call a verification certificate function pre-established in the aforementioned smart contract. The verification certificate function will obtain the hash value of the certificate data in the query based on the query code, and use this hash value as the input value , Automatically search in the records of the valid certificate list, if there is this record, the verification is successful, otherwise it fails.

Based on the description of the above-mentioned embodiments, when one can fully understand the operation and use of the present invention and the effects of the present invention, the above-mentioned embodiments are only preferred embodiments of the present invention, and the implementation of the present invention cannot be limited by this. The scope, that is, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the description of the invention, are all within the scope of the present invention.

(100): Digital certificate management system (200): Blockchain system (1): Certificate issuance processing subsystem (11): Receiving module (12): Hash value calculation module (13): Sending module (14) ): Query information generation module (15): Adding module (2): Unit administrator authority webpage subsystem (21): Certificate issuing unit screening page module (22): Certificate issuing function classification web module (23) ): Blockchain verification module (24): Account database extraction module (25): Management unit update module (3): User multi-faceted management tracking subsystem (31): User real-time query module (32) ): User instant notification module (33): Digital certificate service authority module (4): Digital file security protection platform subsystem (41): Digital file access module (42): Digital file control module (43) ): Digital document verification module (5): Digital history traceability management subsystem (51): Digital history upload module (52): Digital history access module (53): Digital history sharing module (54): Digital Resume query module (S00): certificate creation (S01): hash value calculation step (S02): processing step (S03): adding step (S04): verification step (A): issuing unit (B): use Person (C): Verification unit

[The first figure] is a schematic diagram of the system architecture of an embodiment of the present invention. [The second figure] is a schematic diagram of the main steps of the embodiment of the present invention. [Third Figure] is a schematic diagram of the structure of an embodiment of the present invention.

(100): Digital Certificate Management System

(200): Blockchain system

(A): Issuer

(B): User

(C): Verification unit

Claims (10)

A digital certificate management method based on blockchain technology includes: a hash value calculation step: calculate a hash value by a hash value calculation module of a digital certificate management system for a certificate data; and a processing step: borrow A sending module of the digital certificate management system stores the hash value in each node of a blockchain system and contains different time stamps, and a query information generation module of the digital certificate management system generates a corresponding hash One of the values query code. For example, the digital certificate management method based on blockchain technology described in item 1 of the scope of patent application further includes a verification step: when a blockchain verification module of the digital certificate management system receives a query request and the query code , The blockchain verification module queries the blockchain system for the corresponding hash value according to the query code, and if there is, generates a notification message that verifies compliance and displays the previously stored certificate data. For example, in the digital certificate management method based on blockchain technology described in item 2 of the scope of patent application, in this processing step, the query information generation module further generates one of the query codes corresponding to the Quick Response Code (Quick Response Code, QR Code) to send the query code to the blockchain verification module. For example, the digital certificate management method based on blockchain technology described in item 3 of the scope of patent application further includes an adding step: the quick response matrix code is added to the certificate data or/ by an adding module And a paper certificate corresponding to one of the certificate materials. A computer program product that stores a program. When the program is loaded and executed by the computer, it can complete the digital certificate management method based on blockchain technology as described in any one of items 1 to 4 of the request. A computer-readable recording medium that stores a program. When the computer loads and executes the program, it can complete the digital certificate based on blockchain technology as described in any one of items 1 to 4 of the request Management methods. A digital certificate management system based on blockchain technology includes: a receiving module for receiving a certificate data; a hash value calculation module connected to the receiving module to calculate a hash value based on the certificate data A sending module, connected to the hash value calculation module, storing the hash value in each node of a blockchain system and containing different time stamps; and a query information generating module, connected to the sending module, It is used to generate a query code corresponding to the hash value. For example, the digital certificate management system based on blockchain technology described in item 7 of the scope of patent application further includes a blockchain verification module, which is connected to the blockchain system for receiving a When querying the query request and the query code, the blockchain verification module queries the blockchain system for the corresponding hash value according to the query code, and if there is, generates a notification message that verifies the match and displays the previously stored certificate data . For example, the digital certificate management system based on blockchain technology described in item 8 of the scope of patent application, wherein the query information generation module also generates one of the query codes corresponding to the quick response code (Quick Response Code, QR Code), In order to send the query code to the blockchain verification module. For example, the digital certificate management system based on blockchain technology described in item 9 of the scope of patent application further includes a refilling module, which is connected to the query information generating module, so that the quick response matrix code is added Note in the certificate information or/and a paper certificate corresponding to the certificate information.

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