一种基于二次剩余困难的盲代理重签名方案

摘要

提出一个基于二次剩余困难性的盲代理重签名方案,并在随机预言机的模型下证明了该方案能抵抗伪造攻击的特性.盲代理重签名方案能使重签名的消息具有消息隐私性,使重签名代理无法获知其所签消息的内容,因此能够更好地保护消息.%A blind proxy re-signature scheme based on quadratic residues difficulty is presented. It is proven beneath a random oracle model that it can resist forgery attack characteristics. Blind proxy re-signature scheme can assign information confidentiality to re-signature information so that the re-signature proxy is unable to obtain the contents of that information in order to better protect the it.