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Paper: Direct Chosen-Ciphertext Secure Identity-Based Key Encapsulation without Random Oracles

Authors:
Eike Kiltz
David Galindo
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URL: http://eprint.iacr.org/2006/034
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Abstract: We describe a new and practical identity-based key encapsulation mechanism that is secure in the standard model against chosen-ciphertext (CCA2) attacks. Since our construction is direct and not based on hierarchical identity-based encryption, it is more efficient than all previously proposed schemes. Furthermore, we give the first chosen-ciphertext secure identity-based key encapsulation mechanism with threshold key delegation and decryption in the standard model.
BibTeX
@misc{eprint-2006-21527,
  title={Direct Chosen-Ciphertext Secure Identity-Based Key Encapsulation without Random Oracles},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / identity-based encryption, IBE, threshold cryptography},
  url={http://eprint.iacr.org/2006/034},
  note={ACISP 2006 and SCN 2006 kiltz@cwi.nl 13364 received 31 Jan 2006, last revised 4 Aug 2006},
  author={Eike Kiltz and David Galindo},
  year=2006
}