linux-kernel - Re: [RFC] lib: crc8: add new library module providing crc8 algorithm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110524104404.336c765f@lxorguk.ukuu.org.uk>
Date:	Tue, 24 May 2011 10:44:04 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Arend van Spriel" <arend@...adcom.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	"Dan Carpenter" <error27@...il.com>
Subject: Re: [RFC] lib: crc8: add new library module providing crc8
 algorithm

On Tue, 24 May 2011 09:45:47 +0200
"Arend van Spriel" <arend@...adcom.com> wrote:

> On 05/22/2011 04:19 PM, Alan Cox wrote:
> > Is it just used for wireless in this form ?
> >
> > See the n_gsm and bluetooth code for what I think is the same crc
> > algorithm but in reverse bit order .
> 
> Hi Alan,
> 
> Look into the code in n_gsm and bluetooth code. The algorithm is the 
> same, but except for the bit order it also is using a different 
> polynomial. My current implementation has a fixed table. I could do the 
> table generation runtime with the polynomial and the bit order as 
> parameters. That would make it more general purpose.

Probably not worth it - its so tiny a piece of code anyway (< 500 bytes
or so) that it's going to be bigger not smaller if you do that !
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/