The protocol, based on optimistic approach, USES convertiblesignature scheme and non-interactive zero-knowledge proof to achieve efficient transparent TTP.
该协议基于乐观模型，使用了可转化签名和非交互式零知识证明等技术。
2
Based on proxy signature and convertible authenticated encryption scheme, Ren et al. (2005) proposed proxy convertible authenticated encryption and threshold proxy signature scheme.
基于代理签名与可转换认证加密方案，任等(2005)提出了一种代理可转换认证加密和门限代理签名方案。
3
A new convertible designated confirmer signature based on elliptic curve is presented.