一种有代理的门限签名方案

Threshold-signature Scheme with Proxy Signers

给出一种有代理的门限签名,允许部分原始签名者委托其代理人代为行使代理权。该方案可以在原始签名者需要时收回某个代理签名者代理权,签名的生成只需要参与成员协商完成,不需要可信中心参与,具有安全性高、速度快、密钥量小、便于实现等特点。安全性分析证明该方案是安全、高效的。

This paper presents a threshold-signature with proxy signers, in which some signers can delegate their proxies to do the signatures. The scheme can recall the proxy signature right of the proxy signer delegated by the original signer if the original signer needs. Signature generation needs an interactive protocol among t participants without the trusted dealer. This scheme is secure and efficient, and it has smaller key and is easy to realize. Security analysis proves it is secure and effective.