Delegatability of an Identity Based Strong Designated Verifier Signature Scheme

Article type: Research Article

Authors: Sun, Xun^; | Li, Jianhua^; | Yin, Hu | Chen, Gongliang

Affiliations: Sybase China, Shanghai 201203, China | Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China | School of Information Security Engineering, Shanghai Jiao Tong University, Shanghai 200240, China, e-mail: [email protected]

Abstract: In 2007, Kancharla et al. proposed an identity-based strong designated verifier signature (IBSDVS) scheme based on bilinear pairings, and claimed it unforgeable and non-delegatable. However, in this paper, we show that this scheme is actually delegatable.

Keywords: designated verifier signature scheme, non-delegatability

Journal: Informatica, vol. 21, no. 1, pp. 117-122, 2010