Self-Certified Ring Signcryption Scheme Based on Discrete Logarithm Problem

Abstract

This paper analyzes and summarizes existing ring signcryption schemes, combined with self-certified cryptosystem and ring signcrypption, we proposed a self-certified ring signcryption based on Discrete Logarithm Problem. The scheme proposed not only guaranties ring signcrption’s anonymity, confidentiality, unforgeability and other security features, but also solves certificate management and key escrow issues, which can save storage space and communication cost. By removing bilinear pairings in the process of design, the efficiency of this scheme has been greatly improved. Concluded from the experimental results, this scheme has the advantages of high computational efficiency, high security, and low communication cost.