Cryptology ePrint Archive: Report 2010/620

Identity-based Digital Signature Scheme Without Bilinear Pairings

He Debiao, Chen Jianhua, Hu Jin

Abstract: Many identity-based digital signature schemes using bilinear pairings have been proposed. But the relative computation cost of the pairing is approximately twenty times higher than that of the scalar multiplication over elliptic curve group. In order to save the running time and the size of the signature, in this letter, we propose an identity based signature scheme without bilinear pairings. With both the running time and the size of the signature being saved greatly, our scheme is more practical than the previous related schemes for practical application.

Category / Keywords: public-key cryptography /

Publication Info: Digital signature, Identity-based cryptography, Bilinear pairings, Elliptic curve

Date: received 4 Dec 2010, withdrawn 10 Dec 2010

Contact author: hedebiao at 163 com

Available format(s): (-- withdrawn --)

Version: 20101210:084757 (All versions of this report)

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