[babel] (no subject)

[Juliusz Chroboczek <[e-mail]>]

>>> The provided HMAC Key MUST NOT be modified in any way prior to use
>>> with the hash algorithm.

>> Which draft are we speaking about?  The management draft or the HMAC draft?

> The HMAC draft.

Please consider me utterly confused.

The HMAC draft was carefully written to be agnostic about key distribution
policies.  It assumes that one or more HMAC keys are associated to each
interface (Section 3.1), and takes no stand about how these keys got into
the interface data strcture.

For example, a key might come from a config file, it might come from
a configuration protocol, or it might be the result of a Diffie-Hellman
key exchange.  Babel-HMAC doesn't care, it just consults the interface
data structure and grabs the keys that are there.

So what do you mean by "provided" in the sentence you suggest?  Who's the
mysterious entity doing the providing, and who is she providing the keys to?

(The point I'm making is that you obviously have a particular management
interface in mind -- probably a config file, or perhaps some kind of XML
over HTTP thing --, and that management interfaces are out of scope for
this draft.)

-- Juliusz