@misc{cryptoeprint:2008:234,
    author = {Helger Lipmaa},
    title = {On CCA1-Security of Elgamal And Damg{\aa}rd's Elgamal},
    howpublished = {Cryptology ePrint Archive, Report 2008/234},
    year = {2008},
    url = {http://eprint.iacr.org/2008/234},
}