@inproceedings{IACR:conf/crypto/BonehB06,
  author    = {Dan Boneh and
               Xavier Boyen},
  title     = {On the Impossibility of Efficiently Combining Collision
               Resistant Hash Functions},
  booktitle = {CRYPTO},
  year      = {2006},
  pages     = {570-583},
  ee        = {http://www.iacr.org/archive/crypto2006/41170565/41170565.pdf},
  crossref  = {IACR:conf/crypto/2006},
  bibsource = {IACR, http://www.iacr.org}
}

@proceedings{IACR:conf/crypto/2006,
  editor    = {Cynthia Dwork},
  title     = {Advances in Cryptology - CRYPTO 2006, 26th Annual International
               Cryptology Conference, Santa Barbara, California, USA, August
               20-24, 2006, Proceedings},
  booktitle = {CRYPTO},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {4117},
  year      = {2006},
  isbn      = {3-540-37432-9},
  bibsource = {IACR, http://www.iacr.org}
}