Re: [saag] Revision of "Attacks on Cryptographic Hashes in Internet Protocols"

Paul Hoffman <paul.hoffman@vpnc.org> Wed, 14 November 2012 04:24 UTC

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From: Paul Hoffman <paul.hoffman@vpnc.org>
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Date: Tue, 13 Nov 2012 20:24:19 -0800
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To: Joe Touch <touch@isi.edu>
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Subject: Re: [saag] Revision of "Attacks on Cryptographic Hashes in Internet Protocols"
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On Nov 13, 2012, at 2:16 PM, Joe Touch <touch@isi.edu> wrote:

> This doc refers to IETF protocols that use hashes, but doesn't discuss any in specific. It also doesn't address how hashes are used, e.g., solo (as a fingerprint), keyed (for authentication and source confirmation), as part of an HMAC, or as part of key derivation.
> 
> That sort of information might be additionally useful, IMO.

The opposite was decided when we did RFC 4270, of which this is a direct revision. Many protocols use hashes in multiple ways, and trying to list them was considered a distraction. I believe that is still the case.

--Paul Hoffman