@misc{cryptoeprint:2005:164,
    author = {Mohammad Ali Orumiehchi ha  and Dr.R. Mirghadri},
    title = {A Distinguish attack on COSvd Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2005/164},
    year = {2005},
    url = {http://eprint.iacr.org/2005/164},
}