RSA-Based Certificateless Public Key Encryption

Authors:
Junzuo Lai;Robert H. Deng;Shengli Liu;Weidong Kou
Affiliations:
Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China 200030;School of Information Systems, Singapore Management University, Singapore 178902;Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China 200030;School of Computer Science and Technology, Xi Dian University, Xi'an, China 710071
Venue:
ISPEC '09 Proceedings of the 5th International Conference on Information Security Practice and Experience
Year:
2009

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Abstract

Certificateless Public Key Cryptography was first introduced by Al-Riyami and Paterson in order to eliminate the inherent key-escrow problem of Identity-Based Cryptography. In this paper, we present a new practical construction of certificateless public key encryption scheme without paring. Our scheme is, in the random oracle model, provably secure under the assumption that the RSA problem is intractable.