On Feb 4, 2008 9:12 PM, Joseph Salowey (jsalowey) <
jsalowey at cisco.com> wrote:
Below is a revised charter update based on the discussion on the list.
I have left the password based method item as a tunnel method because
this represents the consensus the working group has reached. I also
believe the working group will have to focus on the tunnel method
related items for the near term to make progress. This does not mean
that we cannot work on additional methods as working group items in the
future.
Please review the charter update and post any issues you have with the
carter. Please also indicate if you have reviewed the proposed charter
and have no issues. It is difficult to judge working group consensus
unless there are sufficient responses.
Thanks,
Joe
Description of Working Group:
The Extensible Authentication Protocol (EAP) [RFC 3748] is a network
access authentication framework used in the PPP, 802.11, 802.16, VPN,
PANA, and in some functions in 3G networks. EAP itself is a simple
protocol and actual authentication happens in EAP methods.
Over 40 different EAP methods exist. Most of these methods are
proprietary methods and only a few methods are documented in RFCs. The
lack of documented, open specifications is a deployment and
interoperability problem. In addition, none of the EAP methods in the
standards track implement features such as key derivation that are
required for many modern applications. This poses a problem for, among
other things, the selection of a mandatory to implement EAP method in
new network access technologies. For example, no standards track methods
meet new requirements such as those posed in RFC 4017, which documents
IEEE 802.11 requirements for EAP methods.
This group is chartered to work on the following types of mechanisms to
meet RFC 3748 and RFC 4017 requirements:
- An update to RFC 2716 to bring EAP-TLS into standards track, clarify
specification, interoperability, and implementation issues gathered over
the years, and update the document to meet the requirements of RFC 3748,
RFC 4017, and EAP keying framework documents. Backwards compatibility
with RFC 2716 is a requirement.
- A mechanism based on strong shared secrets that meets RFC 3748 and RFC
4017 requirements. This mechanism should strive to be simple and compact
for implementation in resource constrained environments.
- A mechanism to support extensible communication within a TLS protected
tunnel that meets RFC 3748 and RFC 4017 requirements. This mechanism
must support channel bindings in order to meet RFC 4962 requirements and
it must provide cryptographic algorithm agility. This mechanism will
support meeting the requirements of an enhanced TLS mechanism, a
password based authentication mechanism, and additional inner
authentication mechanisms.
- Enable a TLS-based EAP method to support channel bindings. So as to
enable RFC 2716bis to focus solely on clarifications to the existing
protocol, this effort will be handled in a separate document. This item
will not generate a new method, rather it will enhance EAP-TLS or the
TLS based tunnel method work item.
- A mechanism meeting RFC 3748 and RFC 4017 requirements that makes use
of existing password databases such as AAA databases. This item will be
based on the tunnel method work item.
Goals and Milestones:
Done Form design team to work on strong shared secret
mechanism
Done Submit 2716bis I-D
Done Submit first draft of shared secret mechanism I-D
Done Form password based mechanism design team
Done Submit 2716bis draft to IESG for Proposed Standard
Done Submit Strong Shared Secret Mechanism to IESG
Apr 2008 Submit Tunnel and Password Method requirements first
draft
Jul 2008 Send Tunnel and Password Method requirements to IESG
Oct 2008 Submit Tunnel Method first draft
Nov 2008 Submit TLS based method channel binding first draft
Nov 2008 Submit Password Method first draft
Feb 2009 Send Tunnel Method to IESG
Apr 2009 Send TLS based method channel binding to IESG
Apr 2009 Send Password based method to IESG
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