Cryptology ePrint Archive: Report 2006/484

A New Identity Based Encryption Scheme From Pairing

Xianhui Lu , Dake He, Guomin Li

Abstract: We construct an efficient identity based encryption scheme from pairing. The basic version of the new scheme is provably secure against chosen plaintext attack, and the full version of the new scheme is provably secure against adaptive chosen ciphertext attack. Our scheme is based on a new assumption (decision weak bilinear Diffie-Hellman assumption ) which is no stronger than decision bilinear Diffie-Hellman assumption.

Category / Keywords: IBE, IND-ID-CPA, IND-ID-CCA, standard model

Date: received 25 Dec 2006, last revised 28 Dec 2006, withdrawn 14 Jan 2008

Contact author: lu_xianhui at sohu com

Available format(s): (-- withdrawn --)

Note: A new IBE scheme based on a new assumption in bilinear group

Version: 20080115:044332 (All versions of this report)

Short URL: ia.cr/2006/484

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