\input zb-basic \input zb-ioport \iteman{io-port 50184268} \itemau{Stevens, Marc; Lenstra, Arjen K.; De Weger, Benne} \itemti{Target collisions for MD5 and colliding X.509 certificates for different identities} \itemso{IACR Cryptology ePrint Archive 2006, 360 (2006).} \itemcc{} \itemut{} \itemli{http://eprint.iacr.org/2006/360} \end