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Paper: Blind HIBE and its Applications to Identity-Based Blind Signature and Blind Decryption

Authors:
Le Trieu Phong
Wakaha Ogata
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URL: http://eprint.iacr.org/2008/327
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Abstract: We explicitly describe and analyse \textit{blind} hierachical identity-based encryption (\textit{blind} HIBE) schemes, which are natural generalizations of blind IBE schemes \cite{gh07}. We then uses the blind HIBE schemes to construct: (1) An identity-based blind signature scheme secure in the standard model, under the computational Diffie-Hellman (CDH) assumption, and with much shorter signature size and lesser communication cost, compared to existing proposals. (2) A new mechanism supporting a user to buy digital information over the Internet without revealing what he/she has bought, while protecting the providers from cheating users.
BibTeX
@misc{eprint-2008-18004,
  title={Blind HIBE and its Applications to Identity-Based Blind Signature and Blind Decryption},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / blind HIBE, blind signature, blind decryption},
  url={http://eprint.iacr.org/2008/327},
  note={ letrieu.letrieuphong@gmail.com 14089 received 28 Jul 2008},
  author={Le Trieu Phong and Wakaha Ogata},
  year=2008
}