基于多线性映射的无证书代理盲签名方案

Certificateless proxy blind signature scheme based on multilinear pairing

代理盲签名方案不能防止密钥生成中心不诚信行为,存在伪造签名的隐患。文章在无证书公钥密码学体系下,通过多密钥中心共同生成用户密钥,运用多线性映射的技术,提出一种基于多线性映射的代理盲签名方案。该方案满足代理盲签名协议的性质,同时可以防止单个密钥生成中心伪造签名。对该方案的正确性、安全性及攻击性进行了分析,结果表明,该方案具备较高的安全性,可以广泛应用于电子现金、电子银行和电子投票系统。

The proxy blind signature scheme can not prevent the bad faith conduct of key generation center,which may cause the forging signature.Under the certificateless public key cryptographic system,a proxy blind signature scheme based on multilinear pairing is proposed by generating the user＇s key through multikey center and using the technology of multilinear pairing.This scheme can suffice the property of proxy blind signature protocol,and prevent the forging signature of single key generation center.The correctness,security and attack analysis shows that the proposed scheme has high security,which can be widely used in electronic cash,banking and voting systems.