群体盲数字签名协议

PROTOCOLS OF GROUP BLIND DIGITAL SIGNATURE

在双离散对数和离散对数方根知识签名方案基础上加以改进 ,提出对应的盲签名协议 .并在 Camenisch的群签名协议基础上 ,结合前面的双离散对数及离散对数方根盲知识签名 ,提出一种群体盲签名方案 .该方案具有不可伪造性、盲签名性等特性 ,并且其计算、空间和通信复杂度都与安全参数

Two blinded variants of signatures of knowledge, are described in this paper, including blind signature of knowledge protocols for the double discrete logarithm, and for the root of the discrete logarithm. Then a new group blind digital signature scheme is presented, which involves taking the group signature scheme of Jan Camenisch as basis, and combining with the above two blind signatures of knowledge. The scheme has some good properties, such as unforgeability, and blindness properties, etc. And computational, space, and communication complexities of the scheme are linear in the security parameterl.