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Paper: On the Security of a Certificateless Public-Key Encryption

Authors:
Zhenfeng Zhang
Dengguo Feng
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URL: http://eprint.iacr.org/2005/426
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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.
BibTeX
@misc{eprint-2005-12759,
  title={On the Security of a Certificateless Public-Key Encryption},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / certificateless public key encryption, cryptanalysis},
  url={http://eprint.iacr.org/2005/426},
  note={ zfzhang@is.iscas.ac.cn 13110 received 23 Nov 2005},
  author={Zhenfeng Zhang and Dengguo Feng},
  year=2005
}