linux-kernel - Re: [BUGFIX] crypto: Fix ctr(aes) testing by specifying geniv

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Date:	Fri, 14 Aug 2009 09:01:07 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>
Subject: Re: [BUGFIX] crypto: Fix ctr(aes) testing by specifying geniv

On Thu, 2009-08-13 at 21:12 +0800, Herbert Xu wrote:
> On Thu, Aug 13, 2009 at 05:39:10PM +1000, Herbert Xu wrote:
> > 
> > Oh I see what's going on.  It's the switch from chainiv to eseqiv
> > that created the error.  I'll apply your patch.
> 
> Actually we can't use seqiv on raw counter mode because it cannot
> guarantee IV uniqueness.  I think reverting to chainiv is the safer
> option.


I see seqiv is used in rfc3686 mode, it means seqiv can not be used on
raw counter mode but can be used for rfc3686?

Best Regards,
Huang Ying

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