Team for Research in
Ubiquitous Secure Technology

Citation
D. Boneh, M. Hamburg. "• Generalized Identity Based and Broadcast Encryption Schemes". Unpublished article, 2008.

Abstract
We provide a general framework for constructing identity-based and broadcast encryption systems. In particular, we construct a general encryption system called spatial encryption from which many systems with a variety of properties follow. The ciphertext size in all these systems is independent of the number of users involved and is just three group elements. Private key size grows with the complexity of the system. One application of these results gives the first broadcast HIBE system with short ciphertexts. Broadcast HIBE solves a natural problem having to do with identity-based encrypted email.

Electronic downloads

• http://crypto.stanford.edu/~dabo/abstracts/polyibe.html

• HTML

  D. Boneh, M. Hamburg. <a
  href="http://www.truststc.org/pubs/584.html"
  ><i>•	Generalized Identity Based and
  Broadcast Encryption Schemes</i></a>,
  Unpublished article,  2008.

• Plain text

  D. Boneh, M. Hamburg. "•	Generalized
  Identity Based and Broadcast Encryption Schemes".
  Unpublished article,  2008.

• BibTeX

  @unpublished{BonehHamburg08_GeneralizedIdentityBasedBroadcastEncryptionSchemes,
      author = {D. Boneh and M. Hamburg},
      title = {•	Generalized Identity Based and Broadcast
                Encryption Schemes},
      year = {2008},
      abstract = {We provide a general framework for constructing
                identity-based and broadcast encryption systems.
                In particular, we construct a general encryption
                system called spatial encryption from which many
                systems with a variety of properties follow. The
                ciphertext size in all these systems is
                independent of the number of users involved and is
                just three group elements. Private key size grows
                with the complexity of the system. One application
                of these results gives the first broadcast HIBE
                system with short ciphertexts. Broadcast HIBE
                solves a natural problem having to do with
                identity-based encrypted email. },
      URL = {http://www.truststc.org/pubs/584.html}
  }
  

Posted by Jessica Gamble on 13 Mar 2009.
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