lkml.org 
[lkml]   [2001]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] random.c bugfix
On Mon, 29 Oct 2001, Horst von Brand wrote:

> Andreas Dilger <adilger@turbolabs.com> said:
>
> [...]
>
> > (*) I don't know enough about the hash functions to know how to add a
> > few odd bytes into the store in a useful and safe way. We don't
> > really want to discard them either - think if a user-space random
> > daemon on an otherwise entropy-free system only writes one byte at
> > a time...
>
> I'm no expert either, but padding with anything (zeroes?) to get the right
> length should be safe, no?

No. A 4-byte accumulator is the right answer. We have to be careful here
though - the actual entropy might be in the partial words, we have to
account for it conservatively.

--
"Love the dolphins," she advised him. "Write by W.A.S.T.E.."

-
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 13:11    [W:0.062 / U:4.820 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site