Efficient Identity-based Designated Verifier Signature
Xuejun Zhang · Jisuanji gongcheng · 2009
Aiming at the low efficiency problem of the existing designated verifier signatures,based on bilinear pairings and random property of extra parameter,a new efficient identity-based designated verifier signature is proposed.Under the assumption of DBH problem,security analysis in cryptography is carried out to analyze the efficiency of the scheme.Results show that the scheme's efficiency is better than that of some existing ones under the condition of keeping all kinds of the security characteristics of designated verifier signature such as unforgeabilty and non-transferability.Its length of signature is shorter,so it is more propitious to applications in society.