eap Mailing List: Re: EAP-AKA Key derivation

[Bernard Aboba (bernard_aboba]

It is very common for IETF specifications to reference cryptographic 
functions defined outside of the IETF.  Examples include AES and DES, both 
of which are defined in NIST documents.


> From: Jari Arkko <jari.arkko [at] piuha.net>
> To: Thomas Otto <t.otto [at] sharevolution.de>
> CC: eap [at] frascone.com
> Subject: Re: [eap] EAP-AKA Key derivation
> Date: Mon, 09 Jan 2006 10:03:22 +0200
>
> Clarifying question:
>
> Is the problem that the KDF specification is unclear,
> or that a NIST publication is needed to implement it?
>
> Thomas Otto wrote:
>
> > Hi all,
> >
> > EAP-AKA uses the DSS key derivation function (KDF) to derive
> > export keying material.
> >
> > Although the draft describes the KDF briefly (see below), I would
> > not be able to ... say implement this function. Rather I would have
> > to look in NIST publication what the SHS actually is ... :-(
> >
> > So, does anyone know why this burden is in EAP-AKA?
>
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