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Auditable signature method based on secure multi-party and related components

A multi-party and secure technology, applied in secure communication devices, computer security devices, and key distribution, can solve problems such as leakage of secret data, impact on system security operation, and normal execution of protocols, so as to improve security, increase the difficulty of cracking, and improve The effect of safety and reliability

Pending Publication Date: 2021-01-26
ZHENGZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in actual implementation, there are three types of participants in the secure multi-party protocol: honest, semi-honest, and malicious. Dishonest participants may affect the normal execution of the protocol during the execution process and induce secret data leakage. have an important impact on the safe operation of the system

Method used

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  • Auditable signature method based on secure multi-party and related components
  • Auditable signature method based on secure multi-party and related components
  • Auditable signature method based on secure multi-party and related components

Examples

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Embodiment Construction

[0057] The core of this application is to provide an auditable signature method based on secure multi-party, which can avoid the negative impact of dishonest participants on the protocol execution process and ensure the security of private data; another core of this application is to provide a method based on secure multi-party Auditable signature device, equipment and a readable storage medium.

[0058]In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to ...

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Abstract

The invention discloses an auditable signature method based on a secure multi-party. The method comprises steps of updating the secret mark information of a participant at intervals of a preset periodbefore the signature behavior of the participant based on the secure multi-party is responded, increasing cracking difficulty of the secret mark information, and improving safety of user privacy datacontained in the secret mark information; and generating a trust matrix with a timestamp based on the trust degree of each participant, performing trust evaluation on each participant to realize identification of the identity of the participant, and if the identity of the participant is judged to be trusted according to the trust vector corresponding to the participant, allowing the participant to perform signature processing according to the secret key and the secret mark information; and if not, the current signature request being refused so that security and reliability of the signature process and security of the user privacy information can be improved. The invention also provides an auditable signature device and equipment based on the secure multi-party, and a readable storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of computer software, in particular to a secure multi-party-based auditable signature method, device, equipment and a readable storage medium. Background technique [0002] Secure multiparty computing (Secure multiparty computing, SMC) is a very active academic field in cryptography, which is mainly used to solve the problem of personal privacy protection among a group of participants who do not trust each other. Under the condition of , solve some thorny problems involving multiple people, it can ensure that multiple distrusting participants can jointly complete computing tasks without revealing their private information. Secure multi-party computation plays an important role in data mining, statistical analysis, privacy protection and confidential electronic voting, and has very important practical significance. [0003] However, in actual implementation, there are three types of participants in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/32H04L29/06G06F21/60G06F21/62G06F21/64
CPCH04L9/085H04L9/0866H04L9/0891H04L9/3247H04L9/3297H04L63/0414G06F21/602G06F21/64G06F21/6245
Inventor 程亚歌胡明生贾志娟杨艳艳何宇矗付俊俊
Owner ZHENGZHOU NORMAL UNIV
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