无证书盲签名方案

Certificateless Blind Signature Scheme

将盲签名和无证书密码结合,充分利用二者的优势,提出了一种无证书盲签名方案,使得签名方案既无对证书的需求,又无密钥托管的弊端,同时又具有盲签名的特性。给出了由系统初始化、局部密钥提取、签名者秘密信息建立、签名者公钥计算、签名者密钥计算、签名和验证7个算法组成的算法模型,并对其安全性给予了证明。分析表明,该方案具有高的安全性。

Combining blind signature with certificateless cryptology, a certificateless blind signature scheme is proposed. This scheme solves the escrow problem and retains the merits of blind signature with no deed of certificate. This scheme includes various functional algorithms such as system initialization, partial-key-extract, set-secret-value, set-public-key, set-private-key, and so on. Finally, an analysis of the scheme＇s security is presented. The results demonstrate its capability of achieving high level of security.