一种高效的基于身份的强指定验证者签名方案

目前人们提出了一些基于身份的强指定验证者签名方案，不过这些方案都存在不足之处。针对这些问题，本文利用双线性映射提出了一个新颖的基于身份的强指定验证者签名方案，并在随机预言模型下基于双线性Diffie-Hellman假设严格证明了方案的安全性。通过与现有方案的比较，可以看出本文提出的方案不但效率是最高的，而且签名长度也是最短的。

An efficient identity based strong designated verifier signature scheme

To date, some identity based strong designated verifier signature schemes have been proposed, but there are some drawbacks on these schemes. To overcome the problem above, in this paper, a novel identity based strong designated verifier signature scheme is proposed from bilinear map. The proposed scheme is secure in the random oracle model under the bilinear Diffie-Hellman assumption. From the performance comparison with the existing schemes, it can be concluded that the proposed scheme has lower computational cost and shorter size of signature.