@misc{cryptoeprint:2005:223,
    author = {Ayan Mahalanobis},
    title = {Diffie-Hellman Key Exchange Protocol, Its Generalization and Nilpotent Groups},
    howpublished = {Cryptology ePrint Archive, Report 2005/223},
    year = {2005},
    url = {http://eprint.iacr.org/2005/223},
}