Blockchain method and system based on asymmetric key pool and implicit certificate

Abstract

The invention relates to a blockchain method and system based on an asymmetric key pool and an implicit certificate. A quantum computer cannot crack a private key through signature information in a process that a user transmits the signature information to other members through employing a public key in a public key pool as an offset to encrypt the signature information; however, the conventionalmethod is that symmetric encryption calculation is performed on the signature, and the calculated amount is much higher than the offset calculation of the patent. Therefore, the offset calculation ofthe patent is a better anti-quantum calculation mode. In the blockchain system, digital signatures are numerous in calculation, so that the calculation amount of the whole blockchain system in the aspect of digital signature encryption and decryption can be greatly reduced.

Description

technical field [0001] This application relates to the technical field of secure communication, in particular to a blockchain method and system based on asymmetric key pools and implicit certificates. 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. [0003] Since the advent of public key encryption, scholars have proposed many public key encryption methods, and their security is based on complex mathematical problems. However, in traditional public key cryptography, the public key is a str...

AI Technical Summary

Problems solved by technology

[0009] 1. In the existing technology, the transmission and storage of the blockchain are not encrypted;

[0010] 2. Since the quantum computer can quickly obtain the corresponding private key through the public key, the existing blockchain transaction method is easily cracked by the quantum computer;

[0011] 3. In the existing technology, the input and output of digital signatures based on public and private keys can be known by the enemy. In the presence of quantum computers, the private key may be deduced, causing the blockchain system to be cracked by quantum computers

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