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文中提出了一种基于身份和双线性对的代理盲签名方案。它综合了代理签名和盲签名的优点,能够有效地防止授权人冒充代理人对消息进行签名,从而代理签名者的利益得到了很好的保护。同时,通过引入双线性对使得系统所需的计算开销较小,从而大大地提高了协议的执行效率。与Zhang提出的代理盲签名方案相比,文中的方案将签名验证过程中所需的双线性对计算量由O(n)降低到O(1),计算效率更高。此外,该方案较好地满足了代理盲签名的安全需求,并提供了不可否认服务。
In this paper, a proxy blind signature scheme based on identity and bilinear pairings is proposed. It combines the advantages of proxy signature and blind signature, which can effectively prevent the authorizer from posing as an agent to sign the message, so that the interests of the proxy signer are well protected. At the same time, by introducing bilinear pairs, the computational cost of the system is reduced, which greatly improves the efficiency of the protocol. Compared with the proxy blind signature scheme proposed by Zhang, the proposed scheme reduces the computational complexity of the bilinear pairings required for signature verification from O (n) to O (1), resulting in higher computational efficiency. In addition, the scheme better meets the security requirements of proxy blind signature and provides undeniable service.