@misc{cryptoeprint:2006:160,
    author = {L. Chen and Z. Cheng and N.P. Smart},
    title = {A Built-in Decisional Function and Security Proof of ID-based Key Agreement Protocols from Pairings},
    howpublished = {Cryptology ePrint Archive, Report 2006/160},
    year = {2006},
    url = {http://eprint.iacr.org/2006/160},
}