Efficient identity-based broadcast encryption without random oracles.

Hu, Liang and Liu, Zheli and Cheng, Xiaochun (2010) Efficient identity-based broadcast encryption without random oracles. Journal of Computers, 5 (3). pp. 331-336. ISSN 1796-203X

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Abstract

We propose a new efficient identity-based broadcast encryption scheme without random oracles and prove that it achieves selective identity, chosen plaintext security. Our scheme is constructed based on bilinear Diffie-Hellman inversion assumption and it is a good efficient hybrid encryption scheme, which achieves O(1)-size ciphertexts, public parameters and constant size private keys. In our scheme, either ciphertexts or public parameters has no relation with the number of receivers, moreover, both the encryption and decryption only require one pairing computation. Compared with other identity-based broadcast encryption schemes, our scheme has comparable properties, but with a better efficiency.

Item Type:Article
Research Areas:Science & Technology > Science & Technology
ID Code:7774
Permissions granted by publisher:With thanks to Academy for permitting the archival of the published version.
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Deposited On:26 Apr 2011 16:26
Last Modified:06 Feb 2013 11:34

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