Anti-quantum signature verification method based on isolation witness

Abstract

The invention relates to an anti-quantum signature verification method based on isolation witness. A configuration module, a secret key module, an approval module, a verification module and a signature node are included. According to the method, defense measures of multiple side channel attacks are integrated, and a one-time signature scheme is adopted, so that the average signature is shorter, the secret key generation, signature and verification efficiency is higher, and the adaptability is higher than that of public key signature.

Description

technical field [0001] The invention relates to the technical field of blockchain, and relates to an anti-quantum signature verification method based on segregated witness. Background technique [0002] With the emergence of quantum computers, the security of traditional public key cryptography, one of the underlying security support technologies of blockchain, will be severely challenged, which will pose a great threat to the security of existing blockchain systems. Keys can be easily calculated from the public keys presented by Bitcoin transactions, and when broadcast to the network, transactions are at risk until they are included in the blockchain. In particular, an attacker may intercept transactions, obtain public keys and compute corresponding secret keys. An attacker can modify the transaction content and generate a valid signature of the modified transaction. If a new transaction generated by an attacker is included in the blockchain before the original transactio...

AI Technical Summary

Problems solved by technology

[0002] With the emergence of quantum computers, the security of traditional public key cryptography, one of the underlying security support technologies of blockchain, will be severely challenged, which will pose a great threat to the security of existing blockchain systems