@misc{cryptoeprint:2004:213,
    author = {Fangguo Zhang},
    title = {Cryptanalysis of Chang et al.'s Signature Scheme with Message Recovery},
    howpublished = {Cryptology ePrint Archive, Report 2004/213},
    year = {2004},
    url = {http://eprint.iacr.org/2004/213},
}