基于群盲签名的能有效阻止勒索的电子现金方案

Efficient E-Cash Scheme to Prevent Blackmailing Based on Group Blind Signature

以C.Popescu的有效安全的群盲签名为基础,提出了一种能有效阻止勒索的电子现金方案,该方案除了满足一般群签名的各种安全要求,还能抵抗合谋攻击,同时也能很好地跟踪重复消费问题。

Presents an efficient electronic cash system based on C. Popescu＇ s secure and efficient group blind signature scheme which is a secure coalition-resistant system and ensures traceability of double spending.