@misc{cryptoeprint:2005:304,
    author = {Adam Bender and Jonathan Katz and Ruggero Morselli},
    title = {Ring Signatures: Stronger Definitions, and Constructions without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2005/304},
    year = {2005},
    url = {http://eprint.iacr.org/2005/304},
}