【摘要】 提出一种新的可转移离线电子现金方案。引入一种新的限制性盲签名机制,实现了对用户身份的限制性盲化;引入一种基于身份的公钥机制,实现了一个多重代理签名机制,进而实现了用户现金的不可追踪性。方案检查二次消费上的优势非常明显,通过重复消费的货币就能够直接计算出重复消费者的身份信息。更多还原

【Abstract】 A new transferable off-line e-cash scheme was proposed. By an introduction of a new restrictive blind signa-ture,restrictive blindness of user’s identity is implemented,by an introduction of ID-based public key system,a multi-proxy signature,and then the untraceability of user’s e-cash,is implemented. Otherwise,the scheme has an advan-tage of the detection of double spending,in which double spender can be revealed directly.更多还原