A Ring Signature Generation Method Based on SM2 Digital Signature Algorithm

Abstract

The invention discloses a method for generating a ring signature based on the SM2 digital signature algorithm. It is assumed that the number of users in the ring is n, and the πth user is the signer; the method includes the following steps: 1) generating a ring signature for a message M; 2. ) to verify the validity of the signature. The invention realizes the generation of the ring signature based on the SM2 digital signature algorithm, and the signer hides the identity in the ring signature group by collecting the user's public key, thereby protecting the privacy of the signer.

Description

technical field [0001] The invention relates to information security technology, in particular to a ring signature generation method based on SM2 digital signature algorithm. Background technique [0002] Digital signature is a kind of cryptographic technology that emerges with the development of information network security to ensure the integrity, authenticity and non-repudiation of data. The State Cryptography Administration released the "SM2 Elliptic Curve Public Key Cryptography Algorithm" on December 17, 2010, including digital signature algorithms, public key encryption algorithms, and key agreement protocols. Among them, the SM2 Elliptic Curve Digital Signature Algorithm has high security, The advantages of small storage space and fast signature speed. [0003] In order to realize the integrity of data and the anonymity of identity at the same time, Rivest et al. proposed the concept of ring signature. The ring signature is named because a certain parameter implied ...

AI Technical Summary

Problems solved by technology

[0004] Researchers have proposed a variety of ring signature algorithms with different forms and different characteristics, but there is no ring signature based on the SM2 digital signature algorithm

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