2006 | OriginalPaper | Chapter
An Identity-Based Proxy Signature Scheme from Pairings
Author : Kyung-Ah Shim
Published in: Information and Communications Security
Publisher: Springer Berlin Heidelberg
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A proxy signature enables an original signer to delegate her signing capability to a proxy signer and then the proxy signer can sign a message on behalf of the original signer. In this paper we propose an ID-based proxy signature scheme from bilinear pairings. We provide exact security proof of the proposed ID-based proxy signature scheme in the random oracle model under the Computational Diffie-Hellman assumption without using Forking Lemma.