DOI: 10.3724/SP.J.1087.2013.03514

Journal of Computer Applications (计算机应用) 2013/33:12 PP.3514-3518

Leakage-resilient designated verifier signature scheme

Designated Verifier Signature (DVS) eliminates the publicly verifiable feature of traditional digital signature to prevent a verifier from proving to a third party the fact that a particular digital signature held by him is issued by a signer. Traditionally, security of digital signature schemes relies on the ideal assumption that an adversary has no access to the information of a secret key. However, side-channel attacks show that the physical implementation of a cryptographic algorithm will leak partial secret information to an adversary. Hence it is necessary to design a leakage-resilient designated verifier signature. Okamoto authentication scheme was converted into a designated verifier signature scheme by using the OR proof technique. Given the leakage bound, the security of the presented scheme was proved under the relative leakage model.

Key words:Designated Verifier Signature (DVS),side-channel attack,relative leakage model,public verifiability,digital signature

ReleaseDate:2014-07-21 16:59:07