Subject: Re: Verifying a kernel.
To: Steven M. Bellovin <smb@cs.columbia.edu>
From: Tonnerre <tonnerre@thundrix.ch>
List: tech-kern
Date: 07/21/2005 01:52:14
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Salut,

On Wed, Jul 20, 2005 at 09:36:10PM +0100, David Laight wrote:
> The chance of missing an error with CRC32 is (about) 1 in 2^32.
> A single bit error is guaranteed to give an error (indeed I think any
> single burst error block of upto 32bits will give an error).
>=20
> For a 'safety' algorith a modulo 2^32-1 sum is probably enough, and
> much, much faster to calculate.

That's what I keep saying here..

Use CRC32, it's ok for this purpose.

				Tonnerre

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