netdev - Re: CCM/GCM implementation defect

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20150423231703.GB26635@gondor.apana.org.au>
Date:	Fri, 24 Apr 2015 07:17:03 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Steffen Klassert <steffen.klassert@...unet.com>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Paul Wouters <pwouters@...hat.com>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: CCM/GCM implementation defect

On Thu, Apr 23, 2015 at 01:45:34PM +0200, Steffen Klassert wrote:
>
> Adding a second template for the correct implementation is
> probaply the only thing that we can do if we don't want to
> break backwards compatibility. But maybe we can add a warning
> to the old implementation, such that users notice that they
> use a broken version.

If we are going to do a warning I think the place to do it would
be in xfrm_algo.c.  We could add an insecure/warning flag and if
then print a warning if said algorithm is used.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html