Block chain model with the privacy protection function

Abstract

The invention discloses a block chain model with the privacy protection function. The block chain model is formed by a minimum trustrank administrator, a private part, and a public part. The minimum trustrank administrator is used for assisting in transaction; the private part is used for defining input information of all sides participating in transaction and sending and receiving of the information and defining relevant calculations during the transaction process and verification of relevant data during the transaction process; and the public part is used for ensuring fairness of the transaction. On the basis of currency encryption, a block chain is constructed by using a distributed anonymous mechanism, zero-knowledge verification, overtime penalties, and packaging methods. Realizationof currency generation and usage, and conversion into basic currency having the privacy protection function relays on zk-SNARK and related data in a ciphertext mode are verified, so that the user is able to realize data verification while the user information is not leaked.

Description

technical field [0001] The invention belongs to the technical field of computer information security, relates to a block chain model with a privacy protection function, and specifically relates to the realization of the privacy protection function and the problem of block verification. Background technique [0002] With the development of Internet technology, the decentralization of information has been popularized, so people have turned their attention to the decentralization of value. The so-called decentralization of value refers to the process of value circulation (mainly financial transactions). , the two parties to the transaction directly exchange value without the intervention of a third party, so that expensive legal fees and transaction costs caused by the introduction of a third party can be avoided. The emergence of blockchain technology provides the possibility to realize the decentralization of value. [0003] The blockchain is a decentralized distributed data...

AI Technical Summary

Problems solved by technology

However, this obfuscation mechanism is aimed at disrupting and rearranging the transaction records in a block. Some studies have proved that the attacker can restore the original order of transaction records through the analysis of the transaction graph to track the real identity of the user, and This obfuscation mechanism also has many defects: (1) the time interval from the time the currency is deposited into the account to the confirmation that the currency will not be traced by others must be long enough to ensure that the transaction history is fully confused; (2) "confusion (3) The "obfuscator" may embezzle the currency