[lkml]   [2003]   [Aug]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Lockless file reading
> wrote:
> > > Probability on the order of 2^-32 with MD5 any-pairs collision.
> > MD5 is 128 bit output, so that's around 2^64 pairs before you have a birthday.
> Right. Dozy me :)
> > > Do you still have the GIFs?
> >
> > There arn't that many GIFs in the world.
> > I'd be really surprised if there were that many pictures in the world.
> I'd be really surprised if what you saw wasn't a software error,
> misreporting or miscalculating the MD5.

Or perhaps more likely, truncating the hash to 32 bits, in which case for most
people there won't be a problem, as a collision isn't likely until you get
to tens of thousands of images.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:48    [W:0.148 / U:2.612 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site