Anonymous revokable ring signature based on public chain and its generation and revocation methods

A ring signature and ring membership technology, applied in the field of network security, can solve the problems of anonymous identity tracking, poor network security, and inability to achieve anonymous identity, and achieve the effect of efficient generation and improved network security.

CN110190970BActive Publication Date: 2021-11-16UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-11-16

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Abstract

The invention discloses an anonymously revocable ring signature based on a public chain and its generation and revocation methods, and relates to the technical field of network security. The ring signature includes a self-certification-based ring signature generation module and an anonymous identity revocation module, and a self-certification-based The ring signature generation module includes a key generation unit, a self-certification generation unit, a self-certification verification unit, and a parallel ring signature generation unit. The anonymous identity revocation module includes a revocation initialization unit, a revocation decision initiation unit, a revocation decision judgment unit, and a revocation validation judgment unit. The present invention comprehensively uses the cloud computing-based ring signature parallel computing method, the ring signature-based anonymous voting method and the threshold password strategy, and realizes the efficient generation of ring signatures of users on the public chain, conditional revocation of anonymous identities, and the completeness of the revocation process. Safe, impartial and trustworthy, thereby improving network security.
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Description

technical field

[0001] The present invention relates to the technical field of network security, in particular to an anonymously revokable ring signature based on a public chain and a method for generating and revoking the ring signature, which is used to realize efficient generation of ring signatures for users on the public chain, conditional revocation of anonymous identities, and Ensure the security, fairness and credibility of the revocation process. Background technique

[0002] Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc. It is essentially a decentralized database. According to the classification of participants, blockchain can be divided into public chain, alliance chain and private chain. Among them, the public chain refers to a blockchain in which anyone in the world can read and send transactions and the transactions can be effectively co...

Examples

Embodiment 1

[0050] The preferred embodiment of the present invention provides an anonymously revokable ring signature based on the public chain, such as figure 1 As shown, it includes a self-certification-based ring signature generation module and an anonymous identity revocation module. The self-certification-based ring signature generation module is used to generate a ring signature that can be revoked anonymously, and the anonymous identity revocation module is used to revoke a ring signature with anonymous revocation The anonymous identity of the signed ring member. The ring signature generation module based on self-certification includes a key generation unit, a self-certification generation unit, a self-certification verification unit, and a parallel ring signature generation unit. The anonymous identity revocation module includes a revocation initialization unit, a revocation resolution initiation unit, and a revocation resolution judgment unit. , canceling the valid judgment unit....