Hello, I needed to verify the integrity of a few files after transferring them to/from my 8086 PC the other day. The obvious method for such task is computing a checksum of the file, like MD5, SHA1, etc... However, on an 8086 this may take ages (even on a fairly fast 386, computing the MD5 sum of a 2 MiB file takes one minute).
Since I don't like waiting, I created an alternative tool over the weekend: bsum. bsum is a tiny DOS tool that computes the BSD checksum of a file. It's very tiny: only 256 bytes (half of which is taken by the help screen), so it will easily fit in a single disk sector. A BSD checksum is obviously not as strong as MD5 or SHA1, but it's still more than enough for verifying whether or not a file got corrupted during a transfer. bsum is compatible with 8086 and requires only a few kilobytes of memory. Also, it's very fast. Homepage: http://bsum.sourceforge.net Mateusz ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
