@misc{cryptoeprint:2005:249,
    author = {Yijuan Shi and Jianhua Li},
    title = {Efficient Certificateless Public Key Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2005/249},
    year = {2005},
    url = {http://eprint.iacr.org/2005/249},
}