基于DLP的有代理的多重数字签名方案研究

Research on multisignature with proxy signers based on DLP

提出了一种新的签名:有代理的多重签名。它是一种特殊的多重签名,允许部分签名人委托其代理人代替他进行多重签名。事实上,普通的多重签名和代理多重签名可以看作这种签名的特殊形式,因此讨论这种签名的安全性有助于多重签名和代理多重签名的安全性研究。之后提出了两种基于离散对数密码体制的有代理的多重签名方案,证明了这两个方案的正确性,并对这两个方案的安全性进行了详细的讨论和分析。

A new type of signature was presented： multisignature with some of proxy signers, in which some signers could delegate their proxies to do the signatures. The common multisignature and the proxy multisignature were specific to this signature, so discussion on this signature could benefit the research of multisignature and proxy multisignature, we propose two new multisignature with some of proxy signers schemes based on discrete logarithm problem （DLP）, and prove correctness of them, and then analysis their security.