论文引用：Doerner J , Kondi Y , Lee E , et al. Secure Two-party Threshold ECDSA from ECDSA Assumptions[C]// Secure Two-party Threshold ECDSA from ECDSA Assumptions. 0.

原文链接

基于ECDSA假设的安全两方门限ECDSA

1、问题引入

       All existing threshold techniques for generating ECDSA signatures require the invocation of heavy cryptographic primitives such as Paillier encryption.
1、Poor performance
2、Unacceptable assumptions—Decisional Composite Residuosity Assumption

2、问题改进

       基于椭圆曲线和ECDSA自身所具有的假设设计门限签名方案
1、elliptic curve primitives
2、curve assumptions

The ECDSA Algorithm

**生成算法：

签名算法：

验证算法：

Two-party ECDSA

Two-party Protocol

2-of-n Protocol