lkml.org 
[lkml]   [2003]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH] Make cryptoapi non-optional?
David Wagner wrote:

> I don't see where you are getting this from. Define
> F(x) = first80bits(SHA(x))
> G(x) = first80bits(SHA(x)) xor last80bits(SHA(x)).
> What makes you think that F is a better (or worse) hash function than G?
>
> I think there is little basis for discriminating between them.
> If SHA is cryptographically secure, both F and G are fine.

In this case we can save the bother of doing the xor, no?

Chris



--
Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com

-
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:0.169 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site