Short Ring Signcryption Scheme with Provable Security
Wei Wang · Jisuanji gongcheng · 2011
Signcryption is such a public key cryptographic primitive that simultaneously provides the functionality of signature and encryption within a single logic step.Ring signature allows a member in a group to anonymously leak a secret,namely anonymity.Combining the two notations of signcryption and ring signature together,it leads to a concept called ring signcryption.Ring signcryption is an important cryptographic primitive for private and authenticated communication.This paper proposes an efficient Short Ring Signcryption(SRSC) scheme based on bilinear pairings.In anonymous communications,the scheme allows the message sender to send the message anonymously,while the confidentiality and authenticity of the message are realized at the same time.It proves that the scheme is confidential and unforgeable in random oracle.