@misc{cryptoeprint:2006:016,
    author = {Yusuke Naito and Yu Sasaki and Takeshi Shimoyama and Jun Yajima and Noboru Kunihiro and Kazuo Ohta},
    title = {Message Modification for Step 21-23 on SHA-0},
    howpublished = {Cryptology ePrint Archive, Report 2006/016},
    year = {2006},
    url = {http://eprint.iacr.org/2006/016},
}