CAJ | 학술논문

在有些情况下,需要将验证者限定为某一个人. 利用基于身份的密码体制,提出了一种强指定验证人签名和一种强指定验证人多重代理签名,并对其安全性进行了分析. 在签名代价和验证代价上,提出的强指定验证人签名比Kang等人的方案要低.提出的强指定验证人多重代理签名可以同时授权给n个代理人,可以有效防止代理签名人对签名权的滥用.
재유사정황하,수요장험증자한정위모일개인. 이용기우신빈적밀마체제,제출료일충강지정험증인첨명화일충강지정험증인다중대리첨명,병대기안전성진행료분석. 재첨명대개화험증대개상,제출적강지정험증인첨명비Kang등인적방안요저.제출적강지정험증인다중대리첨명가이동시수권급n개대리인,가이유효방지대리첨명인대첨명권적람용.
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.