@misc{cryptoeprint:2005:319,
    author = {Xiaofeng Chen and Fangguo Zhang and Shengli Liu},
    title = {ID-based Restrictive Partially Blind Signatures and Applications},
    howpublished = {Cryptology ePrint Archive, Report 2005/319},
    year = {2005},
    url = {http://eprint.iacr.org/2005/319},
}