CAJ | 학술논문

带消息恢复功能的基于身份的代理签名方案是一种特殊的基于身份的代理签名方案，签名消息无需同签名一起发送，在签名验证阶段，可从签名中恢复出消息。提出一个带消息恢复功能的基于身份的代理签名方案，方案的安全性在随机预言模型中，对自适应选择身份和消息攻击是存在不可伪造的。和现有的方案相比，给出的方案效率更高，方案最大限度地减小了签名信息的总长度，适合在传输带宽受限的网络环境中应用。
대소식회복공능적기우신빈적대리첨명방안시일충특수적기우신빈적대리첨명방안，첨명소식무수동첨명일기발송，재첨명험증계단，가종첨명중회복출소식。제출일개대소식회복공능적기우신빈적대리첨명방안，방안적안전성재수궤예언모형중，대자괄응선택신빈화소식공격시존재불가위조적。화현유적방안상비，급출적방안효솔경고，방안최대한도지감소료첨명신식적총장도，괄합재전수대관수한적망락배경중응용。
The identity-based proxy signature scheme with message recovery function is a special kind of identity-based proxy signature scheme,its signing messages needn’t to be sent together with the signature,and the message can be recovered from the signature in signature verification stage.In this paper,we propose an identity-based proxy signature scheme with message recovery function,the security of the scheme lies on the adaptive identity selection in random oracle model and has unforgeability under message attacks.Compared with existing schemes,it is more efficient.The scheme minimises the total length of the signing messages to maximum extent,and is suitable for using in the network environment with transmission bandwidth restricted.