A New ID-Based Deniable Authentication Protocol

Article type: Research Article

Authors: Lu, Rongxing | Cao, Zhenfu | Wang, Shengbao | Bao, Haiyong

Affiliations: Department of Computer Science and Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai, P. R. of China, 200240, e-mail: [email protected]; {cao-zf, shengbao-wang, bhy}@cs.sjtu.edu.cn

Abstract: Deniable authenticated protocol is a new cryptographic authentication protocol that enables a designated receiver to identify the source of a given message without being able to prove the identity of the sender to a third party. Therefore, it can be applied to some particular situations in electronic commerce. In this paper, we formally define the security model for the non-interactive ID-based deniable authentication protocol and present a new efficient ID-based deniable authentication protocol based on RSA assumption. What's more, we also use the techniques from provable security to analyze the security of our proposed protocol.

Keywords: deniable authentication protocol, ID-based, non-interactive, RSA assumption, provable security

Journal: Informatica, vol. 18, no. 1, pp. 67-78, 2007