Linkable ring signature method based on appointed verifier

A designated verifier and ring signature technology, applied in the field of information security, can solve the problems of non-existence, electronic cash and no receipt, etc., and achieve high efficiency

Inactive Publication Date: 2012-03-14
陈国敏 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an implementation method of a linkable ring signature scheme based on a designated verifier, to solve the problem that there is no linkable ring signature method based on a designated verifier in the background technology, and it is impossible to use a linkable ring signature to solve electronic cash, electronic transactions, etc. Unreceiptability in voting

Method used

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  • Linkable ring signature method based on appointed verifier
  • Linkable ring signature method based on appointed verifier
  • Linkable ring signature method based on appointed verifier

Examples

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Embodiment Construction

[0033] Take electronic voting as an example to illustrate the specific implementation of this scheme. The voter is the signer of this scheme, and the voter is the designated verifier of this scheme. Through the implementation of this scheme, the voter can sign the digital ballot with the designated verifier's linkable ring signature, and the ticket checker can confirm the authenticity of the digital ballot by verifying the designated verifier's signature, and can verify the designated verifier's linkable ring of the two ballots Whether the signature is signed by the same voter. However, due to the non-transferability of the ring signature of the designated verifier, the ticket checker cannot prove to anyone whether the two digital ballots are signed by the same person, so that the vote has no receipt. The voter or voter coercion cannot collude with the checker to learn that the voter voted twice. The specific implementation process is as follows:

[0034] 1) The electronic v...

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PUM

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Abstract

The invention relates to a linkable ring signature method based on an appointed verifier. In the method, a non-interactive zero-knowledge proof technology is adopted, and a linkable ring signature based on the appointed verifier is realized under the hypothesis of the difficulty in a bilinear Diffie-Hellamn problem. According to the invention, the problems that no linkable ring signature method based on the appointed verifier is available in the prior art and the linkable ring signature cannot be used to solve the problem of receipt-freeness in electronic-cash and electronic voting are solved.

Description

technical field [0001] The invention relates to the field of information security. In particular, the invention relates to a method of linkable ring signature generation and verification based on a designated verifier. Background technique [0002] Digital signature is a basic information security technology, which has important applications in designated verifier authentication, data integrity, non-repudiation and anonymity, especially in key distribution in network security communication, authentication and e-commerce, It plays an important role in e-government and other systems. Digital signature is an important tool for authentication. [0003] The generation and verification of digital signatures require the signer's signature private key and verification public key. The signer's private signing key is known only to the signer. The verification public key of the signer is public. The generation of a digital signature requires the use of the signer's signature priva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08H04L9/30
Inventor 陈国敏陈满祥
Owner 陈国敏
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