Block chain system, information processing method, system and device, and computer medium

Abstract

The invention discloses a block chain system, an information processing method, system and device, and a computer medium, and is applied to a target block chain node, and the method comprises steps of obtaining discrete password group information of a block chain application; obtaining a first commitment value; obtaining a second commitment value; dividing the first numerical value by the second numerical value to obtain a third numerical value, and calculating the third numerical value to obtain a third commitment value; taking the reciprocal of the second numerical value as a fourth numerical value, and calculating the fourth numerical value to obtain a fourth commitment value; calculating the numerical value 1 to obtain a fifth commitment value; generating dividing relation proving information through a zero-knowledge proving method; and issuing division relationship proof information to the block chain verification node, so that the block chain verification node verifies whether the third numerical value is a quotient of the first numerical value and the second numerical value based on the division relationship proof information. According to the method, division certification is realized, and is combined with existing addition, subtraction and multiplication certification, so that addition, subtraction, multiplication and division operation of data in the block chain is realized, and the functionality of the privacy protection block chain is improved.

Description

technical field [0001] The present application relates to the technical field of blockchain, and more specifically, to a blockchain system and an information processing method, system, device, and computer medium. Background technique [0002] With the development of communication technology, users have higher requirements for information security and transmission. In this environment, the blockchain has won the trust of users by virtue of its advantages of decentralization, non-tampering and traceability. Pay attention to. Blockchain (Blockchain) is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. It is an important concept of Bitcoin. Blockchain is essentially a decentralized The database, as the underlying technology of Bitcoin, is a series of data blocks associated with cryptographic methods. Each data block contains a batch of Bitcoin network transaction informati...

AI Technical Summary

Problems solved by technology

However, in the application process of the blockchain, in order to better hide the user's private information, such as hiding the user's transaction information in the blockchain, Monero came into being. With the help of Monero, other users can only It is known that a certain user has made a transaction, but the specific user information cannot be obtained

[0003] However, in the application process of the privacy protection blockchain, when the user hides different related information separately, since the privacy protection blockchain cannot know the specific value of the hidden information, it is impossible to know the hidden information. Whether the preset relationship is satisfied, such as whether the addition, subtraction, multiplication and division relationship is satisfied

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