eap Mailing List: Re: EAP-AKA Key derivation

[Jari Arkko (jari.arkko]

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?
>