Quantum computing-resistant signature method and signature system based on public key pool

Abstract

The invention discloses a quantum computing-resistant signing method based on a public key pool, and a signing system, wherein the signing method includes: the signing direction seal server requests to obtain an encrypted seal public key; The party uses the electronic seal to sign the document to generate a document with the electronic signature; the electronic signature includes at least the seal signature generated by the public key of the seal, and the anti-quantum signature containing the encrypted public key of the seal Calculate the public key; when verifying the seal, the seal verification direction seal server requests to obtain the public key key for the seal public key extracted from the anti-quantum computing public key, and uses the extracted seal public key to verify the seal signature.

Description

technical field [0001] The invention relates to the field of secure communication, in particular to an electronic seal method using a key card to realize anti-quantum computing. Background technique [0002] Electronic seal, also called digital seal, is a visual representation of digital signature. It can also be understood as the electronicization of traditional seal and handwritten signature. Its function is similar to that of traditional seal or handwritten signature used on paper documents. . The objects that need to be affixed with electronic seals are electronic documents, and these electronic documents are also transmitted in the network environment, which makes the application system of electronic seals relatively complicated. Therefore, an electronic seal is not equivalent to a simple electronic seal picture, it must have three basic features such as ease of use, security, and scalability. [0003] The electronic seal system is mainly used to ensure that in an ope...

AI Technical Summary

Problems solved by technology

[0007] 1. In the prior art, since the quantum computer can quickly obtain the corresponding private key through the public key, the digital signature method based on the public and private key is cracked by the quantum computer, and the electronic seal based on the digital signature technology is also cracked by the quantum computer

[0008] 2. In the existing technology, the input and output of digital signatures based on public and private keys can be known by others. In the presence of quantum computers, the private key may be deduced, resulting in electronic seals being cracked by quantum computers

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