Digital evidence storage platform and evidence storage method based on block chain

Abstract

The invention provides a digital evidence storage platform based on a block chain. In the platform, a server performs hash operation on a file in response to a request of submitting an electronic format file by a client to obtain a hash value corresponding to the file; the server performs information interaction with the distributed file system, names the file with a corresponding hash value, stores the file and acquires a storage ID of the file; the server performs information interaction with the blockchain network, and submits the hash value, the storage ID and the file creation informationcorresponding to the file to the blockchain network; the blockchain network successfully stores transaction data through the smart contract after consensus and packages the transaction data into blocks, and then returns successfully stored block transaction ID values to the server; and the server locally stores the submitted file and the hash value, the storage ID and the transaction ID corresponding to the file, and returns the storage state information of the file to the client. The authenticity and reliability of the data can be ensured.

Description

technical field [0001] The invention relates to the technical field of electronic data storage, in particular to a blockchain-based digital certificate deposit platform and certificate deposit method. Background technique [0002] Blockchain technology is a cutting-edge technology that emerged in 2009. This technology integrates various computer technologies such as distributed storage, point-to-point network, encryption technology and consensus algorithm. Due to its characteristics of decentralization, independence, security and anonymity, blockchain has received extensive attention. Blockchain technology is not limited to financial aspects, but has begun to expand its integration with other fields, such as supply chain and identity management. Most of the more common distributed file systems at this stage are based on the GPL open source protocol, and store data in the server in the form of objects and files. The communication protocol of the cluster nodes usually uses th...

AI Technical Summary

Problems solved by technology

Most of the more common distributed file systems at this stage are based on the GPL open source protocol, and store data in the server in the form of objects and files. The communication protocol of the cluster nodes usually uses the TCP protocol, which is basically centralized storage. There is still a single point of failure in the way

In addition, encrypted database is also an important means of electronic certificate storage, including front-end service agent and encryption gateway technology, application layer encryption technology transformation, file-level encryption and decryption technology, etc., but these technologies have problems such as complex operation and opaque data

[0003] In the existing technology, ordinary deposit certificates only store electronic data in the centralized server in the form of backup. Since electronic data is very easy to be damaged, it is easy to cause defects, breakpoints, incomplete evidence, etc. during the transmission process. Fault

This not only has high technical requirements for the third-party evidence storage platform, but also requires reducing the number of transfers and handovers in the generation, storage, s

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