Oh goodness no, there are lots of practical attacks that would work if people still trusted MD5. For example, two self-extracting archives with the same MD5 th

Oh goodness no, there are lots of practical attacks that would work if people still trusted MD5. For example, two self-extracting archives with the same MD5 that unpack to completely different contents: http://eprint.iacr.org/2004/356.pdf http://eprint.iacr.org/2004/356.pdf Two postscript files with the same MD5 that print different letters: http://web.archive.org/web/20071226014140/http://www.cits.rub.de/MD5Collisions/ http://web.archive.org/web/20071226014140/http://www.cits.ru... And plenty more as listed here by Peter Selinger: http://www.mscs.dal.ca/~selinger/md5collision/ http://www.mscs.dal.ca/~selinger/md5collision/