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

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.

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...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for generating an anonymously revocable ring signature based on a public chain in order to solve the problem that the anonymous identity of nodes in the existing public chain cannot be tracked, resulting in poor network security

At the same time, in order to solve the problem that it is impossible to adjudicate the anonymous identity of the nodes in the existing public chain and revoke the rebellious nodes, resulting in poor network security, a ring signature revocation method based on the public chain that can be anonymously revoked is provided.

In order to solve the problem of poor network security caused by the inability to track and adjudicate the anonymous identity of nodes in the existing public chain and revoke the rebellious nodes in the public chain at the same time, a ring signature based on the public chain that can be anonymously revoked is provided

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