Blockchain privacy protection method, system and device

Abstract

The invention discloses a blockchain privacy protection method, system and device. The method comprises the steps of receiving an established privacy model containing a transaction format and a privacy requirement of a target transaction; respectively generating a local encryption SDK (Software Development Kit) containing an encryption API (Application Program Interface), a verification contract containing a transaction verification API and an algorithm library containing algorithms required by on-chain transaction processing according to the transaction format and the privacy requirement, andlinking the verification contract and the algorithm library; calling an encryption API to encrypt the transaction plaintext of the target transaction to obtain a ciphertext transaction; and after theciphertext transaction is linked, calling a transaction verification API to verify the ciphertext transaction, and after the verification is legal, performing service processing on the ciphertext transaction based on the algorithm library and the defined service contract to obtain a service processing result. Therefore, a brand-new privacy protection scheme is provided, a user only needs to provide a privacy model, the system can automatically execute model analysis, transaction encryption, transaction verification, transaction processing and other work, and the learning cost is low.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a block chain privacy protection method, system and device. Background technique [0002] The core characteristics of blockchain technology are "decentralization" and "de-trust". As a distributed ledger technology, a smart contract basic platform, and a new distributed computing paradigm, it can effectively build programmable currency, programmable finance and programmable It is bound to have a profound impact on finance and other fields. At present, the entities involved in bookkeeping in the blockchain need to upload data and business to the chain as much as possible, so as to give full play to the role of the "trust machine" of the blockchain. However, in real business scenarios, enterprise data and services contain a large amount of confidential information. This information needs to be properly hidden to protect privacy, and at the same time, it needs to take i...

AI Technical Summary

Problems solved by technology

However, no matter which way users implement data privacy protection, they need to have an in-depth understanding of the principles of cryptography and the selection of cryptography algorithms, resulting in high learning costs

Images