@misc{cryptoeprint:2009:617,
    author = {B. Umaprasada Rao and  P. Vasudeva Reddy and T. Gowri},
    title = {An efficient ID- based directed signature scheme from bilinear pairings},
    howpublished = {Cryptology ePrint Archive, Report 2009/617},
    year = {2009},
    url = {http://eprint.iacr.org/2009/617},
}