Joseph Salowey (jsalowey) wrote:
We discussed using CBC mode because it was slightly simpler than CTR
mode. What is the significant advantage you see with CTR mode?
CTR mode as the encryption algorithm and AES_CMAC_128 as the integrity
algorithm requires the implementation of the forward operation of the
cipher only.
I missed the part about CBC being simpler (btw, I have nothing against
CBC :) ). Could you refresh my memory? Thanks.
regards,
Lakshminath
Joe
-----Original Message-----
From: Charles Clancy [mailto:[EMAIL PROTECTED]
Sent: Monday, March 12, 2007 6:21 AM
To: Lakshminath Dondeti
Cc: [email protected]
Subject: [Emu] Re: On my suggestion to use CTR mode instead of CBC
> CTR mode encryption does not include integrity protection.
There are > what are known as combined modes, e.g., CCM,
OCB, GCM, which use CTR > mode for encryption. I am not
talking about using CCM or something like > that.
I have no objection to switching from CBC to CTR. Anyone
else have an opinion?
--
t. charles clancy, ph.d. | [EMAIL PROTECTED] | www.cs.umd.edu/~clancy
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