Welcome to the resource topic for 2004/150
Title:
An Authenticated Certificateless Public Key Encryption Scheme
Authors: Young-Ran Lee, Hyang-Sook Lee
Abstract:In 2003, Al-Riyami and Paterson \cite{AP} proposed the
certificateless public key cryptography(CL-PKC) which is
intermediate between traditional certificated PKC and
identity-based PKC. In this paper, we propose an authenticated
certificateless public key encryption scheme. Our result improves
their public key encryption scheme in efficiency and security. The
security of the protocol is based on the hardness of two problems;
the computational Diffie-Hellman problem(CDHP) and the bilinear
Diffie-Hellman problem(BDHP). We also give a formal security model
for both confidentiality and unforgeability, and then show that
our scheme is provably secure in the random oracle model.
ePrint: https://eprint.iacr.org/2004/150
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