@misc{cryptoeprint:2008:143,
    author = {M. Barbosa and P. Farshim},
    title = {Certificateless Signcryption},
    howpublished = {Cryptology ePrint Archive, Report 2008/143},
    year = {2008},
    url = {http://eprint.iacr.org/2008/143},
}