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Published in:
2011 | OriginalPaper | Chapter
New ID-Based Proxy Multi-signature from Pairings
Authors : Rajeev Anand Sahu, Sahadeo Padhye
Published in: Informatics Engineering and Information Science
Publisher: Springer Berlin Heidelberg
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A proxy signature scheme permits a proxy signer to sign messages on behalf of an original signer. Proxy multi-signature is one of the proxy signature primitives, where a group of original signers delegate their signing rights to the same proxy signer. However, as yet, to our knowledge, an ID-based proxy multi-signature scheme from bilinear pairings based on inverse computational Diffie-Hellman problem (INV-CDHP) has not been proposed. In this paper, we present the above scheme using advantage of the ‘k-plus’ problem and give a detailed analysis of the same. Due to a single pairing computation in verification phase, the new scheme is more efficient in computational and timing sense than other available schemes. Moreover, the proposed scheme fulfills all the security requirements of a safe proxy signature.