A highly reliable existence proof method based on blockchain technology
A technology of blockchain and credibility, which is applied in the directions of instruments, calculations, and electrical digital data processing, etc., can solve problems such as slow block generation, reduced availability of blockchain systems, and reduced performance of blockchains to achieve improved Throughput, effect of implementing proof of existence, enhancing system availability
Active Publication Date: 2022-02-08
上海七印信息科技有限公司
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Problems solved by technology
[0006] The technical problem to be solved by the present invention: Aiming at the problems of slow block generation speed, reduced block chain performance, and reduced usability of the block chain system in the existing proof of existence method based on block chain technology, an extremely Greatly improve the throughput of the system, enhance the availability of the system, and realize high-performance and high-confidence high-confidence existence proof methods based on blockchain technology
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[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0022] see figure 1 , shown in the figure is a highly credible existence proof method based on blockchain technology, including the following steps:
[0023] Step 1. Extract metadata from the digital content that needs to be stored, and use the author's private key to digitally sign the extracted metadata. Among them, the digital content is one or more combinations of articles, pictures, videos or music. The extracted metadata includes DCMI-compliant fields such as release time, publisher, and original content hash. For different types of digital content, the extracted metadata will be different, see DCMI (http: / / dublincore.org) for details. The algorithm adopted by the digital signature is any asymmetric encryption algorithm, such as the RSA...
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The present invention discloses a high-reliability existence proof method based on blockchain technology, comprising the following steps: extracting metadata from digital content that needs to be stored, and using the author's private key to digitally sign the extracted metadata ;Hash the signed metadata to generate a hash value string, and write the generated hash value string into the current latest block in the blockchain; the generated hash value string Perform an overall hash operation with the current latest block address in the blockchain to generate a certificate hash value string; add the generated certificate hash value string to the digital content that needs to be stored, and then publish to the Internet. The present invention realizes that there are very few nodes in the blockchain system and does not rely on the proof-of-work consensus algorithm to provide blockchain data that cannot be tampered with. At the same time, it greatly improves the throughput of the system, enhances system availability, and achieves high performance and high Proof of existence of credibility.
Description
technical field [0001] The present invention relates to the technical field of proof of existence and authentication services, in particular to a method of proof of existence with high credibility based on block chain technology. Background technique [0002] For nearly a hundred years, how to prove the existence time, legitimacy and ownership of certain content (such as articles, pictures, videos, etc.) has always been a research hotspot in sociological issues. Articles, pictures, videos, etc.) are more and more digitized, which greatly facilitates its dissemination. At the same time, many problems have been exposed. How to prove the integrity, legality and generation of a document or a musical work Time to protect the legitimate rights and interests of the parties from being infringed, so methods such as digital signatures and time stamp services have been produced. These methods without exception require the certification and participation of third-party trusted instituti...
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IPC IPC(8): G06F21/10G06F21/60
CPCG06F21/10G06F21/602
Inventor 甘露
Owner 上海七印信息科技有限公司