Identity-based (ID-based) public key cryptosystem can be a good alternative for certificate-based public key setting, especially when efficient key management and moderate security are required. A proxy signature scheme permits an entity to delegate its signing rights to another entity. But to date, no ID-based proxy signature scheme with provable security has been proposed. In this paper, we formalize a notion of security for ID-based proxy signature schemes and propose a scheme based on the bilinear pairings. We show that the security of our scheme is tightly related to the computational Diffie-Hellman assumption in the random oracle model. © Springer-Verlag Berlin Heidelberg 2005.
CITATION STYLE
Xu, J., Zhang, Z., & Feng, D. (2005). ID-based proxy signature using bilinear pairings. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 3759 LNCS, pp. 359–367). Springer Verlag. https://doi.org/10.1007/11576259_40
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