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Anti-quantum computing electronic seal method and system based on multiple asymmetric key pools

An electronic seal, quantum computing technology, applied in transmission system, key distribution, can solve problems such as cracking

Active Publication Date: 2021-08-10
RUBAN QUANTUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Based on this, it is necessary to provide a digital signature method and system with higher security for the problem that the digital signature method based on public and private keys is easily cracked by quantum computers

Method used

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  • Anti-quantum computing electronic seal method and system based on multiple asymmetric key pools
  • Anti-quantum computing electronic seal method and system based on multiple asymmetric key pools
  • Anti-quantum computing electronic seal method and system based on multiple asymmetric key pools

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] In order to better describe and illustrate the embodiments of the application, reference may be made to one or more drawings, but additional details or examples used to describe the drawings should not be regarded as an invention of the application, the presently described implementation limitations on the scope of any of the examples or preferred modes.

[0065] This embodiment provides an anti-quantum computing electronic seal method based on multiple...

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PUM

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Abstract

The invention relates to a quantum computing-resistant electronic seal method based on multiple asymmetric key pools. Each participant is equipped with a key card, and the key card stores a seal server public key, an electronic seal, a defense public key pool, Defense private key pool and seal public key pool; The anti-quantum computing electronic seal method includes: when signing a seal, use the electronic seal in the key card to sign the file, generate a file with an electronic signature and send it to the verification party for verification; the electronic signature includes at least a seal signature, a signature signature and a file signature available for verification, and each signature is a ciphertext; the generation of the ciphertext is to use random numbers to extract from the defense public key pool encryption key; each signature also carries the random number, which is used by the verifier to take the key from the defense private key pool to decrypt it by using the random number.

Description

technical field [0001] The invention relates to the field of secure communication, in particular to a proxy digital signature method and system for realizing anti-quantum computing by using key card technology. Background technique [0002] An electronic signature is a program or data such as symbols, sounds, images, etc. used to identify the identity of the signatory and indicate that the signatory approves the contents. There are various forms of electronic signature, including image digital watermark, sound, handwritten signature and so on. There are also various objects that can be signed, including programs, documents, databases, and so on. Using electronic signatures, banks can formulate online electronic payment rules, make electronic checks, and realize rapid fund settlement on the Internet. Checks can be digitized and digitally signed even if the payment is not made online. Converting checks to digital can reduce the fraud of forged stamps, reduce transaction ris...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/08H04L9/32
Inventor 富尧钟一民汪仲祥
Owner RUBAN QUANTUM TECH CO LTD