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WG Action: RECHARTER: Multicast Security (msec)



The charter of the Multicast Security (msec) working group in the
Security Area of the IETF has been updated. For additional
information, please contact the Area Directors or the working
group Chairs.

Multicast Security (msec)
-------------------------
Current Status: Active Working Group

Chairs:

Ran Canetti <canetti@watson.ibm.com>
Thomas Hardjono <thardjono@verisign.com>

Security Area Director(s):

Russell Housley <housley@vigilsec.com>
Steven Bellovin <smb@research.att.com>

Mailing Lists:

General Discussion: msec@securemulticast.org
To Subscribe: msec-request@securemulticast.org
In Body: subscribe
Archive: <http://www.pairlist.net/mailman/listinfo/msec>

Description of Working Group:

The purpose of the MSEC WG is to standardize protocols for securing
group communication over internets, and in particular over the global
Internet. Initial efforts will focus on scalable solutions for groups
with a single source and a very large number of recipients. Additional
emphasis will be put on groups where the data is transmitted via
IP-layer multicast routing protocols (with or without guaranteed
reliability). The developed standard will assume that each group has a
single trusted entity (the Group Controller) that sets the security
policy and controls the group membership. The standard will strive
to provide at least the following basic security guarantees:

+ Only legitimate group members will have access to current group
communication. This includes groups with highly dynamic membership.

+ Legitimate group members will be able to authenticate the source
and contents of the group communication. This includes cases where
group members do not trust each other.

An additional goal of the standard will be to protect against
denial-of-service attacks, whenever possible.

Due to the large number of one-to-many multicast applications and the
sometimes conflicting requirements these applications exhibit, it is
believed that a single protocol will be unable to meet the requirements
of all applications. Therefore, the WG will first specify a general
Reference Framework that includes a number of functional building
blocks. Each such building block will be instantiated by one or more
protocols that will be interchanable. The Reference Framework will not
only describe one-to-many multicast, but also many-to-many multicast.

In addition, as a secondary goal the MSEC WG will also focus on
distributed architectures for group key management and group policy
management, where for scalability purposes multiple trusted entities
(such as Key Distributors) are deployed in a distributed fashion. For
this purpose, the Reference Framework will not only describe
one-to-many multicast, but also many-to-many multicast.

MSEC will generate at least the following documents, which could be
considered as base documents:

1. An RFC describing the security requirements of multicast security and
an RFC describing the MSEC Architecture.

2. An RFC describing the Group Key Management Architecture and an RFC
describing Group Policy Management Architecture in MSEC.

3. Several RFCs describing specifications for protocols that implement
source authentication, group key management and group policy management.
As multicast security covers a broad range of issues, and therefore
touches other Working Groups in the IETF, the MSEC WG will work closely
with othersecurity-related Working Groups (e.g. IPsec, IPSP), as well
as other Working Groups which maybe considered a "consumer" of the
technologies produced in the MSEC WG (e.g. AVT, MMUSIC) or which may
have a multicast focus (e.g. PIM, RMT, IDRM, MAGMA).

With this in mind, the MSEC WG is open to receiving new work items,
whenever it is considered appropriate to be homed in the MSEC WG. Such
drafts will be matured in conjunction with the MSEC base documents.

Goals and Milestones:

DONE Working Group Last Call on GDOI Protocol.

DONE Working Group Last Call on MIKEY Protocol.

Sep 03 WG Last Call on Group Key Management Architecture draft.

Sep 03 WG Last Call on MSEC Architecture draft.

Sep 03 WG Last Call on DHHMAC for MIKEY.

Sep 03 WG Last Call on Data Security Architecture draft

Dec 03 WG Last Call on Security Requirements draft.

Mar 04 WG Last Call on Group Security Policy Architecture draft

Mar 04 WG Last Call on MESP (Multicast ESP) draft.

Mar 04 WG Last call on MESP-TESLA draft.

Mar 04 WG Last Call on GSAKMP-Light protocol.

Jul 04 WG re-charter for other work items (or disband).