Threshold Signcryption Based on Elliptic Curve

Abstract

The signcryption scheme presented by Zheng uses hash function and symmetrical cipher to encrypt message. The first protocol for threshold generation of Zheng's signcryption scheme couldn't support multiple public verifiers. In this paper, we proposed a new signcryption scheme based on EC-ELGamal type encryption. Message to be transmitted is embedded in Elliptic Curve as a point P(m) and encrypted by point addition which is efficient and secure as well as exiting schemes. By using verifiable secret sharing and…