Through the analysis of two proxy blind signature schemes, we want to prove that this two proxy blind signature schemes can not resist forgery attack and both have linkability.
对两个代理盲签方案及其安全性进行分析，证明了这两个方案不具有不可伪造性和不可链接性。
In this paper, we put forward a practical anonymous authentication scheme with identity escrow and controllable linkability which allows a user to control the linkability among his authentications.
本文设计了一种支持认证契据和可控相关性的匿名认证方案，使得用户可以控制多次认证之间的相关性。
In this paper, we put forward a practical anonymous authentication scheme with identity escrow and controllable linkability which allows a user to control the linkability among his authentications.
本文设计了一种支持认证契据和可控相关性的匿名认证方案，使得用户可以控制多次认证之间的相关性。
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