Anti-quantum computing cloud storage method and system based on alliance chain

Abstract

This application relates to an anti-quantum computing cloud storage system based on the alliance chain, which is implemented between members of the alliance chain communicating with each other. The alliance members include User and a plurality of Endorser, Orderer and Committer that provide corresponding services. It is characterized in that, All parties are equipped with key cards, and all key cards store their own private keys, public key pools and system management public keys; the public key pool stores public keys corresponding to each of the alliance members unit, the public key unit stores public key random numbers, and the anti-quantum computing cloud storage method includes implementing query files based on the alliance chain, and correspondingly transmitting files according to the query results. upload and download. By using the alliance chain for distributed generation and storage of keys, the security of file storage is further improved.

Description

technical field [0001] This application relates to the field of consortium chains, in particular to a method and system for anti-quantum computing cloud storage based on consortium chains. Background technique [0002] Blockchain is a brand-new distributed infrastructure and computing paradigm. It uses an ordered chained data structure to store data, uses consensus algorithms to update data, and uses cryptography to ensure data security. In blockchain-based transactions, ensuring the data security of transactions and the privacy of customers is a necessary condition for the further development of blockchain. For this reason, cryptography technology, especially public key cryptography, has been widely used in blockchain. The alliance chain is a branch of the blockchain, so it is also a distributed and decentralized public database. The difference from other chains is that it is aimed at members of specific groups and limited third parties. A pre-selected node is the bookkee...

AI Technical Summary

Problems solved by technology

[0006] 1. There is a certain risk in storing keys on cloud services, and public cloud customers have worries about data on the cloud

[0007] 2. The current cloud storage directly and simply uses the public key cryptosystem, which cannot resist the attack of quantum computing

[0008] 3. In the prior art, the public key pool server is used to store and manage keys in a unified way. There are still two problems in this way

One is that the key management center is vulnerable to attacks and paralyzes the entire cloud storage network

The second is that the key management center has all the keys. If the key management center loses control and illegally decrypts user data, it will cause serious consequences.

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