Abstract: In self-certified public key signature scheme, the tasks of verifying the authenticity of public key and validating the signature were carried out simultaneously. The self-certified public key signature is more efficient than the existing certificate-based signature and identitybased signature in terms of communication overheads and computation efforts. There are only a few self-certified public key signatures of which the efficiency needs to be improved. In this paper, an efficient self-certified public key signature scheme was proposed by using bilinear pairings. The analysis shows the proposed scheme is secure. Furthermore, its efficiency is also better than that of the existing ones.

Key words: signature, self-certified public key, bilinear pairings

摘要： 在自认证公钥签名中，验证签名有效性的同时，也验证了公钥的真实性。与已有的基于证书和基于身份的两种签名相比，自认证公钥体制具有通信代价低、计算量少的优点。 现有的使用双线性对的自认证公钥签名的文献数量少，效率也有待进一步提高。为此使用双线性对，构造了一种高效的自认证公钥签名方案。分析表明，新方案不仅安全，而且其效率也优于已有文献。

关键词: 签名, 自认证公钥, 双线性对