关键词:基于身份的签名; 指定验证人签名; 代理签名; 双线性对
Identity-based strong designated verifier signature schemes
MAO Wei-xia, LI Zhi-hui, XUE Ting
(College of Mathematics & Information Science , Shaanxi Normal University, Xi’an 710062, China)
Abstract:We should specify a verifier in some circumstances. Using identity-based cryptography, this paper proposed a strong designated verifier signature and a strong designated verifier multi-proxy signature. It also analyzed the proposed schemes. The proposed strong designated verifier signature scheme was lower than Kang et al.’s scheme in the signing cost and verifying cost. The proposed strong designated verifier multi-proxy signature scheme could delegate n proxy signers. Thus it could prevent proxy signers abusing signing authority.
Key words:identity-based signature;designated verifier signature;proxy signature;bilinear pairings ......