@misc{cryptoeprint:2007:015,
    author = {Aggelos Kiayias and Yiannis Tsiounis and Moti Yung},
    title = {Group  Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2007/015},
    year = {2007},
    url = {http://eprint.iacr.org/2007/015},
}