A multi-party fair contract evidence storage method and system based on a block chain technology

A blockchain and fair technology, applied in the field of blockchain technology and data storage, which can solve the problems of unable to restore original data, unable to update and freeze storage data, etc.

Active Publication Date: 2019-06-04
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0005] 2. The current data storage technology is based on the one-way hash function and the digital signature technology of the asymmetric secret key to form a "data summary" for the integrity verification of the original data, which is a kind

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  • A multi-party fair contract evidence storage method and system based on a block chain technology
  • A multi-party fair contract evidence storage method and system based on a block chain technology
  • A multi-party fair contract evidence storage method and system based on a block chain technology

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Embodiment Construction

[0062] In order to make the purpose, technical solution and advantages of the present invention clearer, a data storage activation management method and system based on blockchain technology proposed by the present invention will be further described in detail in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to explain the present invention, and are not intended to limit the present invention.

[0063] The essence of blockchain technology is a distributed ledger database, which stores historical transaction data, and this database is shared by all nodes through a distributed consensus protocol. The core value of blockchain technology includes decentralization, distributed consensus, signature and encryption of asymmetric secret keys, and time stamps. In a distributed system where nodes do not need to trust each other, peer-to-peer transactions based on decentralized credit, coordination ...

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Abstract

The invention relates to a multi-party fair contract evidence storage method based on a block chain technology. Activated management mode of digital data storage technology is realized by utilizing ablock chain technology and a CA digital certificate system, and management processes such as initialization addition, updating and freezing of storage data are mapped into a transaction list form of ablock chain network; the evidence storage data is confirmed by signatures of multiple evidence storage parties and is written into the transaction bill; the storage process is written into the blockchain global account book data after the storage multi-party confirmation and the whole network consensus verification of the block chain network; A management mode of the stored data which cannot betampered, cannot be denied and does not have a single-point fault is formed, and the problems that in the current centralized storage technology, a credit single-point dependence problem exists generally, and the stored original data cannot be recovered after the single-point fault are solved.

Description

technical field [0001] The invention belongs to the technical fields of block chain technology and data storage certificate, and in particular relates to a data storage technology and certificate storage data management technology based on block chain technology. Background technique [0002] Commercial contracts are usually called fair contracts in the field of information technology, and their fairness is reflected in the fact that the content of the contract includes the division of interests and responsibilities of two parties (or multiple parties). Should always be in a position of balance. Today, when business contracts or business interaction information are gradually stored electronically, contracts or documents stored in the form of electronic documents are easy to delete and tamper with. Therefore, ensuring the authenticity and integrity of electronic contracts is a ubiquitous realistic demand , It is necessary to store electronic contracts or related documents in...

Claims

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Application Information

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IPC IPC(8): G06Q20/38G06Q20/40
Inventor 赵晓芳于雷金岩蔡恒毅
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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