基于自认证的并行多重签密方案

A parallel multi-signcryption scheme based on self-certified cryptography

签密思想是将签名和加密融为一体的构想,相比传统的先签名后加密的体制,它的计算量小和运算速度快。自认证免去了公钥证书的管理,能为系统节约成本。鉴于两者的优点,提出了一个基于自认证的并行多重签密方案,提供了多个签名者对同一消息进行签名,多个解签密者可以同时解密的思路,可广泛用于电子现金领域和秘钥管理领域及路由器的消息分发等领域。并用随机预言机的理论证明了新方案的安全性能。

Signcryption integrates the two concepts of signature and encryption, and outperforms the traditional signaturefirstencryptionthen system in computation amount and operation speed. And the selfcertified public key eliminates the need of public key certificate management and saves cost. In view of the advantages of both, we present a parallel multiple signcryption scheme based on self certified cryptography, which makes the idea that multiple signers can sign the same message and multiple decryptors can decrypt it simultaneously achievable. It can be widely used in electronic cash, secret key management and message distribution of the router. The random predict theory verifies its security.