Team for Research in
Ubiquitous Secure Technology

Citation
D. Boneh, R. Canetti, S. Halevi, J. Katz. "• Chosen-Ciphertext Security from Identity-Based Encryption". SIAM J. of Computing, 915-942, 2006.

Abstract
We propose simple and efficient "CCA-secure" public-key encryption schemes (i.e., schemes secure against adaptive chosen-ciphertext attacks) based on any identity-based encryption (IBE) scheme. When instantiated with known IBE schemes, our constructions have ramifications of both theoretical and practical interest. First, our schemes give a new paradigm for achieving CCA-security; this paradigm avoids "proofs of well-formedness" that have been shown to underlie all previous constructions. Second, using efficient IBE constructions we obtain CCA-secure encryption schemes whose performance is competitive with the best provably-secure solutions to date. Our techniques extend naturally to give an efficient method for securing any hierarchical IBE scheme against adaptive chosen-ciphertext attacks. Coupled with previous work, this gives the most efficient known constructions of CCA-secure IBE schemes. Reference:

Electronic downloads

• http://crypto.stanford.edu/~dabo/papers/ccaibejour.pdf

• HTML

  D. Boneh, R. Canetti, S. Halevi, J. Katz. <a
  href="http://www.truststc.org/pubs/604.html"
  >•	Chosen-Ciphertext Security from
  Identity-Based Encryption</a>, SIAM J. of Computing,
  915-942, 2006.

• Plain text

  D. Boneh, R. Canetti, S. Halevi, J. Katz.
  "•	Chosen-Ciphertext Security from
  Identity-Based Encryption". SIAM J. of Computing,
  915-942, 2006.

• BibTeX

  @inproceedings{BonehCanettiHaleviKatz06_ChosenCiphertextSecurityFromIdentityBasedEncryption,
      author = {D. Boneh and R. Canetti and S. Halevi and J. Katz},
      title = {•	Chosen-Ciphertext Security from Identity-Based
                Encryption},
      booktitle = {SIAM J. of Computing},
      pages = {915-942},
      year = {2006},
      abstract = {We propose simple and efficient "CCA-secure"
                public-key encryption schemes (i.e., schemes
                secure against adaptive chosen-ciphertext attacks)
                based on any identity-based encryption (IBE)
                scheme. When instantiated with known IBE schemes,
                our constructions have ramifications of both
                theoretical and practical interest. First, our
                schemes give a new paradigm for achieving
                CCA-security; this paradigm avoids "proofs of
                well-formedness" that have been shown to underlie
                all previous constructions. Second, using
                efficient IBE constructions we obtain CCA-secure
                encryption schemes whose performance is
                competitive with the best provably-secure
                solutions to date. Our techniques extend naturally
                to give an efficient method for securing any
                hierarchical IBE scheme against adaptive
                chosen-ciphertext attacks. Coupled with previous
                work, this gives the most efficient known
                constructions of CCA-secure IBE schemes.
                Reference: },
      URL = {http://www.truststc.org/pubs/604.html}
  }
  

Posted by Jessica Gamble on 16 Mar 2009.
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