Fabian Greffrath <[email protected]> writes: > I do occasionally check for identical files on different systems by > comparing their md5sums. So, just out of interest, could someone tell me > (how to find out) how many non-identical files with identical md5sums > there are there on a typical (say, amd64) Debian system?
Unless you have a collection of MD5 collision attacks, or have installed a package that includes a sample MD5 collision, the changes are quite good that the answer is "zero." MD5 is no longer considered cryptographically strong, but that doesn't mean it's not a fairly random 128-bit hash. You need a *lot* of files before even the birthday paradox will give you much likelihood of an MD5 collision that wasn't intentionally constructed. -- Russ Allbery ([email protected]) <http://www.eyrie.org/~eagle/> -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
