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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:11:00
Giff (giff@eng.us.uu.net)
Fri, 21 Aug 1998 18:56:12 -0400 (EDT)
On Fri, 21 Aug 1998 steven.soroka@mts.mb.ca wrote:
> >> 114 bytes, does this neccesarily mean that it's
> >> safe to use for a one-time pad and secure from cryptanalysis?
> >
> >No. It means that your pseudo-random data has passed a very rudimentary
> >first test. There may still be a lot of structure in that data, structure
> >that pkzip did not find.
>
> I've counted the occurances of each byte, they seem to be within a few
> hundred
> of eachother when I generated a million of them... so it doesn't seem to be
> too
> biased with any certain characters..
Check out the CHI tests. If your distribution is too flat, that is
non-random!
> something I did find strange, was in a few places, it would have "A%A" or
> "7?7" ... I think that might be a bit of a problem.. (although "[A]"
> probably
> isn't)...
That's because you, as a human, look for patterns. When a pattern is
found, you say, "Hey, this doesn't look right". It should be fine as-is.
BUT! I wouldn't use THIS particular stream as source for a OTP, since you
have told us some of the contents!
-Giff
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:11:00