【摘要】 在以前提出的大部分群签名体制中,群公钥的长度至少和群成员数是线性的,因此验证算法的运行时间依赖于群成员的个数。构造了一种新的群签名体制,它将克服这些问题,并且在增加新成员时不用进行公钥的修改。实现的方法是基于变型DSA签名体制的知识签名。更多还原

【Abstract】 Previously proposed realizations of group signature schemes had the undesirable property that the length of the public key was linear in the size of the group and therefore also the running time of the verification algorithm depended on the number of group members. A new group signature schemes would be proposed, which could overcome these problems. Furthermore, the scheme allowed the group manager to add new members to the group without modifying the public key. The realization was based on the knowledge of signature of a modification of DSA.更多还原