Subject: Re: Verifying a kernel.
To: Tonnerre <tonnerre@thundrix.ch>
From: Jason Thorpe <thorpej@shagadelic.org>
List: tech-kern
Date: 07/20/2005 08:57:25
On Jul 20, 2005, at 5:26 AM, Tonnerre wrote:
> Don't allow MD5! Also, SHA1 is a candidate that shouldn't be
> trusted just
> like this. Why?
>
> - people might use it
> - people might decide to use it for security relevant functions
> - people are thereby prone to the typical MD5 bit flipping attacks
> et al.
>
> I'm talking myself blue in the face on that: Don't use md5.
We're not talking about a digital signature algorithm here. We're
simply talking about a checksum that can be used to ensure that the
bits on disk landed in memory correctly. There is no reason to
disallow MD5 for this.
-- thorpej