Title:
BLOCKCHAIN-BASED METHOD FOR DOCUMENT VALIDATION
Document Type and Number:
WIPO Patent Application WO/2023/035477
Kind Code:
A1
Abstract:
Disclosed is a blockchain-based method for document validation. The method comprises: a blockchain network is constructed, which comprises a sender, a receiver, and a certificate center, the certificate center issuing a certificate to every node in the blockchain network; the sender prepares a document file, successively utilizes MD5 and an encryption algorithm of the blockchain network to perform processing on the document file, obtains an encrypted document abstract, and sends the encrypted document abstract as well as a certificate of the sender to the receiver by means the blockchain network; the sender simultaneously sends the document file to the receiver by a conventional method; the receiver verifies the certificate of the sender, decrypts the encrypted document abstract, and obtains a decrypted document abstract; the receiver extracts an abstract of the document file received using the conventional method; and validation of the document file is performed according to the decrypted document abstract and the document abstract of the receiver. A document abstract and the identity of a sender are simultaneously verified, and the security and validity of document validation are greatly improved with the aid of a tamper-proof property of a blockchain network.
Inventors:
MA ZHIGUO (CN)
Application Number:
PCT/CN2021/138958
Publication Date:
March 16, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
MA ZHIGUO (CN)
International Classes:
G06F21/62
Foreign References:
| CN113761578A | 2021-12-07 | |||
| CN111224788A | 2020-06-02 | |||
| CN110826092A | 2020-02-21 | |||
| CN106485168A | 2017-03-08 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT (CN)
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