A bit commitment signcryption protocol for wireless transport layer security (WTLS)

Abstract

Signcryption is comparatively new approach in public key cryptography. Signcryption has the virtue to provide the services of digital signature and public key encryption in a single step. So when we compare it in terms of cost and ease of use, signcryption is better than “signature then encryption” (or encryption then signature) approach. So signcryption protocols are obvious choice for WTLS where authentication along with savings of computational overheads is always desired. In this paper we present a signcryption protocol for WTLS using bit commitment scheme with its security analysis.