From: daw@taverner.cs.berkeley.edu (David Wagner)
To: linux-kernel@vger.kernel.org
Subject: Re: dm-crypt, new IV and standards
Date: Thu, 4 Mar 2004 17:44:25 +0000 (UTC) [thread overview]
Message-ID: <c27ptp$dhp$1@abraham.cs.berkeley.edu> (raw)
In-Reply-To: 20040304132430.GA8213@certainkey.com
Jean-Luc Cooke wrote:
>Like you said, CBC is not trivial to temper with - though it is do able. CTR
>is trivial on the other hand. Which is why NIST and every cryptographer will
>recommend using a MAC with CTR. (Why still have CTR? Unlike CBC, you can
>compute the N+1-th block without needing to know the output from the N-th
>block, so there is the possibility for very high parallelizum).
I'm worried about the potential for confusion, so let me clarify: Good
cryptographers will recommend using a MAC, whether you use CTR, CBC,
or CFB. The need for a MAC is not specific to CTR; CBC is not exempt.
next prev parent reply other threads:[~2004-03-04 17:49 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-19 22:06 dm-crypt, new IV and standards Carl-Daniel Hailfinger
2004-02-19 22:20 ` Christophe Saout
2004-02-20 17:22 ` Jean-Luc Cooke
2004-02-20 21:26 ` James Morris
2004-02-20 21:52 ` 2.6.3 adaptec I2O will not compile David Lang
2004-02-25 16:25 ` Adrian Bunk
2004-02-26 8:02 ` Jaco Kroon
2004-02-26 8:08 ` David Lang
2004-02-26 9:28 ` Jaco Kroon
2004-02-26 10:24 ` David Lang
2004-02-21 0:31 ` dm-crypt, new IV and standards Carl-Daniel Hailfinger
2004-02-21 16:48 ` Jean-Luc Cooke
2004-02-21 17:36 ` Jean-Luc Cooke
2004-02-21 19:01 ` Andreas Jellinghaus
2004-03-03 8:35 ` dean gaudet
2004-03-03 15:06 ` Jean-Luc Cooke
2004-03-03 21:40 ` David Wagner
2004-03-08 19:58 ` Jean-Luc Cooke
2004-03-04 1:48 ` dean gaudet
2004-03-04 13:24 ` Jean-Luc Cooke
2004-03-04 17:44 ` David Wagner [this message]
2004-03-05 1:19 ` dean gaudet
2004-03-05 2:14 ` Jean-Luc Cooke
2004-03-04 15:08 ` Pavel Machek
2004-03-07 4:14 ` DM for detecting bad disks was: " Mike Fedyk
-- strict thread matches above, loose matches on Subject: below --
2004-02-22 19:20 Adam J. Richter
2004-02-22 20:53 ` Christophe Saout
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