lkml.org 
[lkml]   [2003]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH] Make cryptoapi non-optional?
On Fri, Aug 15, 2003 at 09:30:03AM +0200, Andries Brouwer wrote:
> On Thu, Aug 14, 2003 at 06:17:13PM -0600, Val Henson wrote:
>
> > See Matt Mackall's earlier post on correlation, excerpted at the end
> > of this message. Basically, with two strings x and y, the entropy of
> > x alone or y alone is always greater than or equal to the entropy of x
> > xored with y.
> >
> > entropy(x) >= entropy(x xor y)
> > entropy(y) >= entropy(x xor y)
>
> Is this trolling? Are you serious?
> Try to put z = x xor y and apply your insight to the strings x and z.

Val left out the assumption that x and y are already perfectly
distributed, in and of themselves.

--
Matt Mackall : http://www.selenic.com : of or relating to the moon
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.243 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site