International Association for Cryptologic Research

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Paper: Secure Identity Based Encryption Without Random Oracles

Authors:
Dan Boneh
Xavier Boyen
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URL: http://eprint.iacr.org/2004/173
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Abstract: We present a fully secure identity based encryption scheme whose proof of security does not rely on the random oracle heuristic. Security is based on the decisional bilinear Diffie-Hellman assumption. Previous constructions of this type incurred a large penalty factor in the security reduction from the underlying complexity assumption. The security reduction of the present system is polynomial in all the parameters.
BibTeX
@misc{eprint-2004-12145,
  title={Secure Identity Based Encryption Without Random Oracles},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / identity-based encryption, provable security},
  url={http://eprint.iacr.org/2004/173},
  note={An extended abstract appears in CRYPTO 2004. eprint@boyen.org 12620 received 20 Jul 2004, last revised 21 Jul 2004},
  author={Dan Boneh and Xavier Boyen},
  year=2004
}