Welcome to the resource topic for 2005/426
Title:
On the Security of a Certificateless Public-Key Encryption
Authors: Zhenfeng Zhang, Dengguo Feng
Abstract:Certificateless public-key cryptosystem is a recently proposed
attractive paradigm using public key cryptosystem, which avoids
the key escrow inherent in identity-based public-key
cryptosystems, and does not need certificates to generate trust in
public keys. In 2005, Al-Riyami and Paterson proposed a new
certificateless public-key encryption scheme and proved its security in the random oracle model. This paper shows that their scheme is vulnerable to adaptive chosen ciphertext attacks, and presents a countermeasure to overcome such a security flaw.
ePrint: https://eprint.iacr.org/2005/426
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