A new scheme of identity authentication that has zero-knowledge characteristics is established based on RSA algorithm.The analysis of the scheme shows that the algorithm is legible,the mutual time and the opportuni-ty be cheated is less.Only one time proof,it can meet the reliability demands for which other zero-knowledge proof algorithms need much more time proof.
Based on the assumption that only weak-trusted relation exists among the participants,designated confirmer signatures in weak-trusted relation has the following security requirements: Process separated between signature construction and verification,zero-knowledge proofs,un-transformability and fakery prevention.A confirmer signature algorithm based on RSA public-key cryptography is proposed,and verification processes are presented,described both in non-formal method and in Camenisch-Michels model.The security of this algorithm is proved to be equivalent to RSA cryptographic functions.
used of RSA arithmetic and Feige-Fiat-Shami digital agreement to proposal an double-direction mutual user attestation method, improved on Diffie-Hellman arithmetic, user cryptical communications project is constructed. The idea of zero-knowledge proof is used in this project to guarantee key security,and user’s communications content is hide higher.
Cognitive Computing and Networks
Advanced Computational Techniques and Applications
By imitating the zero-knowledge proof protocol of RSA digital signature,we get a faulty zero-knowledge proof protocol of EIGamal digital signature.And this paper will analyze it.
Group-oriented identity authentication is designed to satisfy some special security demands.It help to prevent the cheat of inner fellows and improve the security level and availability of identity authentication system,as well as strengthening the system sur-vivability.Combined with general ElGamal digital signature,shamir secret sharing and zero-knowledge proof,a group-oriented identity authentication scheme is designed,which can effectively resist familiar personate and conspiracy attack.
Based on the classical authentication protocol of Fiat-Shamir,a new kind of zero knowledge proof mended algorithm is established based on module operation.Two functions can be done in this system.One is the users can make bidirectional authentication,second they can use the same pair of publicprivate keys to encrypt the data transferred between them.So two works of authentication and encryption can be done in one system.