@misc{cryptoeprint:2009:259,
    author = {Cameron McDonald and Philip Hawkes and Josef Pieprzyk},
    title = {Differential Path for SHA-1 with complexity $O(2^{52})$},
    howpublished = {Cryptology ePrint Archive, Report 2009/259},
    year = {2009},
    url = {http://eprint.iacr.org/2009/259},
}