@misc{cryptoeprint:2007:416,
    author = {Donghoon Chang,  Mridul Nandi, Jesang Lee, Jaechul Sung and Seokhie Hong},
    title = {Compression Function Design Principles Supporting Variable Output Lengths from a Single Small Function},
    howpublished = {Cryptology ePrint Archive, Report 2007/416},
    year = {2007},
    url = {http://eprint.iacr.org/2007/416},
}