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

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...

AI Technical Summary

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 of "cured" data management In this way, management operations such as updating and freezing the stored evidence data cannot be implemented. After the original data is destroyed, the original data cannot be restored through the "Data Summary"

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