Re: [Freedos-user] DOS ideas with fast simple algorithms - was: BSUM BSD checksum

2017-04-11 Thread Mateusz Viste
On Mon, 10 Apr 2017 23:21:26 +0200, Eric Auer wrote: > For checking if downloads worked without noise, I would already want > something "stronger" than BSUM, such as > > https://en.wikipedia.org/wiki/Fletcher%27s_checksum As already stated in this thread a few times, the BSD checksum is far

Re: [Freedos-user] DOS ideas with fast simple algorithms - was: BSUM BSD checksum

2017-04-10 Thread Rugxulo
Hi, Eric, always good to hear from you, On Mon, Apr 10, 2017 at 4:21 PM, Eric Auer wrote: > >> BSUM (by Mateusz Viste) : 6.0s (100%) >> CRC32 (by Joe Forster) : 8.5s (70%) > >> MD5 (by Colin Plumb): 52.9s (11%) >> SHA1 (by Colin Plumb) : 85.7s (7%) > >

Re: [Freedos-user] DOS ideas with fast simple algorithms - was: BSUM BSD checksum

2017-04-10 Thread Eric Auer
Hi Mateusz, > BSUM (by Mateusz Viste) : 6.0s (100%) > CRC32 (by Joe Forster) : 8.5s (70%) ... > MD5 (by Colin Plumb): 52.9s (11%) > SHA1 (by Colin Plumb) : 85.7s (7%) Entertaining :-) Still you need to find a good balance between speed and collision risk. If you want to find