Cryptology ePrint Archive: Report 2005/249

Efficient Certificateless Public Key Encryption

Yijuan Shi and Jianhua Li

Abstract: Certificateless public key cryptography was introduced to overcome the key escrow limitation of the identity-based cryptography. Most of the existing certificateless public key encryption schemes are based on Boneh and Franklin's identity-based encryption scheme (BF-IBE). In this paper, we construct a new certificateless public key encryption scheme from the efficient SK-IBE which has been proved to be IND-ID-CCA secure. The new scheme is more efficient on computation complexity or published public key information than the existing schemes.

Category / Keywords: public-key cryptography / Certificatless Public Key Encryption, CL-PKE

Date: received 27 Jul 2005, withdrawn 23 Aug 2005

Contact author: cbzsyj130 at sohu com

Available format(s): (-- withdrawn --)

Version: 20050824:035602 (All versions of this report)

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