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Re: Two AES encryption modes?



Ramana:

NIST has not approved any combined modes yet.

Russ


At 02:15 PM 7/26/2002 -0700, Ramana Yarlagadda wrote:
Hi, Russ

I have gone through your document. well but the question here is what is it IETF considering as combined mdoe algorithms.

Like you said out of all the algorithms that i know CMM is is the only one which is not patented and the basical algorithms used in that are already approved by NIST. So i am trying to get more information before i consider this.

-thanks
-ramana
At 04:41 PM 7/26/02 -0400, Housley, Russ wrote:
As one of its authors, I advocate CCM, which is unencumbered by patents. There are other alternatives, but you need to be careful of their patent status. You can find information about several choices at:
http://csrc.nist.gov/encryption/modes/proposedmodes



Russ



At 12:54 PM 7/26/2002 -0700, Ramana Yarlagadda wrote:
Hi, Russ

Thanks for your reply. We are developing AISIC solutions for Security applications and as part of this we implement Cryptographic algorithms in the hardware.

ESP v2 talks about the combined mode algorithms and couldn't get any information about the algorithms that we must support for this.

Can you throw some light on this.

-cheers
-ramana
At 03:19 PM 7/26/02 -0400, Housley, Russ wrote:
Ramana:

In a separate I-D, I plan to post a specification for using AES-CCM.

For those that are interested, you can learn more about AES-CCM at
http://csrc.nist.gov/encryption/modes/proposedmodes/ccm/ccm.pdf.

Russ


At 01:00 PM 7/24/2002 -0700, Ramana Yarlagadda wrote:
Hi all

What about the combined modes that AES support?

-thanks
-ramana