基于RSA的ElGamal型有序多重数字签名方案

ElGamal Type Sequential Digital Multi-signature Scheme Based on RSA

提出了一种基于RSA的ElGamal型有序多重数字签名方案。在该方案中消息以密文的形式发送给签名者,在密钥生成部分采用零知识证明,并且允许多个用户顺序地对某一份文件进行签名,然后构成一份群体签名。简化了签名者之间的接口,减少了通信成本,可以有效地防止内部成员的欺诈行为,因而更具安全性和实用性。

In this paper,an ElGamal type sequential digital multi-signature scheme based on RSA is presented.In this scheme,message is sent to the signatory secretly,and it uses zero-knowledge proof during the part of key forming.The scheme allows mutiple signers to sign the same message orderly and seperately,then combines all of their signatures into a multsignature.The scheme simplifies the interface between signers and reduces the cost of communication,and can avoid the cheating by inner users efficiently,so it＇s more safe and practical.