An Efficient Ring Signature Scheme for Privacy and Anonymous Communication

Abstract

signature scheme based on the conic curve over Zn (RSBCZ). In the random oracle model, the scheme was proved secure provided that computing discrete logarithm in conic and factoring large integer are hard. We argue that our scheme is a great tool for privacy and anonymous communication. Moreover, since the whole signature was operated in conic curve over Zn, the scheme is easier to accomplish for embedding plaintext, computing element order and points in curves, and speeding up the inverse operation. Keywords-ring signatures; conic curve over Zn; random oracle model; privacy; anonymous communication