Subject: [eap] EAP-SKL update

From: "Thomas Otto" <[email-masked]>
Date: Thu, 13 Oct 2005 08:16:20 +0200

EAP-SKL has been updated,

http://www.ietf.org/internet-drafts/draft-otto-eap-skl-03.txt

Rationale.

One main problem of embedding existing security protocols in EAP is to match
the EAP message flow. After an EAP Identity exchange, the EAP server begins
the conversation.

Assume the underlying protocol is a 4-step protocol,

<-- 
-->
<--
-->

<-- EAP-Success

then this would match exactly. Some protocols however mandates the peer to
send the first message, then

<-- "start"
-->
<-- 
-->
<-- 
--> "finish"

<-- EAP-Success

With EAP-SKL, this is slightly different, because it is a 3-step protocol. 
This can never
incorporated into EAP exactly, so either at the beginning or at the end 
(before the
EAP server sends an EAP success) an "empty" message has to be inserted.

From -02 to -03, I decided to have the first message of the server an empty 
message,
which could probably carry some informational things, not specified yet.

So with EAP-SKL v03 we have

<-- "start"
-->
<--
-->

<-- EAP-Success

/Thomas 

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