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Paper: Certificateless Public Key Encryption Secure against Malicious KGC Attacks in the Standard Model

Authors:
Yong Ho Hwang
Joseph K. Liu
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URL: http://eprint.iacr.org/2007/262
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Abstract: We introduce the first secure Certificateless Public Key Encryption (CL-PKE) scheme against a malicious Key Generation Center (KGC) in the standard model. Recently, Au \textit{et al.} \cite{AuChLiMuWoYa07} pointed out that the previous security models for CL-PKE schemes cannot guarantee the security against a malicious KGC. They also showed that although some schemes are secure against malicious KGC, they require the random oracle model to prove the security. In this paper, we first show that previous CL-PKE schemes in the standard model are not secure against malicious KGC. And then, we construct a new CL-PKE scheme with rigorous security proof against the attacks of a malicious KGC in the standard model, which is the first in the literature.
BibTeX
@misc{eprint-2007-13543,
  title={Certificateless Public Key Encryption Secure against Malicious KGC Attacks in the Standard Model},
  booktitle={IACR Eprint archive},
  keywords={Certificateless Public Key Cryptography},
  url={http://eprint.iacr.org/2007/262},
  note={ ksliu9@gmail.com 13699 received 4 Jul 2007},
  author={Yong Ho Hwang and Joseph K. Liu},
  year=2007
}