Multimedia Internet KEYing (MIKEY) General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport
RFC 4909
| Document | Type |
RFC - Informational
(June 2007; Errata)
Was draft-dondeti-msec-mikey-genext-oma (individual in sec area)
|
|
|---|---|---|---|
| Last updated | 2020-01-21 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized with errata bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4909 (Informational) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Russ Housley | ||
| Send notices to | (None) | ||
Network Working Group L. Dondeti, Ed.
Request for Comments: 4909 QUALCOMM, Inc.
Category: Informational D. Castleford
France Telecom
F. Hartung
Ericsson Research
June 2007
Multimedia Internet KEYing (MIKEY) General Extension Payload
for Open Mobile Alliance BCAST LTKM/STKM Transport
Status of This Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The IETF Trust (2007).
Abstract
This document specifies a new Multimedia Internet KEYing (MIKEY)
General Extension payload (RFC 3830) to transport the short-term key
message (STKM) and long-term key message (LTKM) payloads defined in
the Open Mobile Alliance's (OMA) Browser and Content (BAC) Broadcast
(BCAST) group's Service and Content protection specification.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. MIKEY General Extension for OMA BCAST Usage . . . . . . . . . . 3
4. Interoperability Considerations . . . . . . . . . . . . . . . . 3
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 4
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 4
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8.1. Normative References . . . . . . . . . . . . . . . . . . . 5
8.2. Informative References . . . . . . . . . . . . . . . . . . 5
Dondeti, et al. Informational [Page 1]
RFC 4909 OMA BCAST MIKEY General Extension June 2007
1. Introduction
The Multimedia Internet Keying (MIKEY) protocol specification [1]
defines a General Extension payload to allow possible extensions to
MIKEY without having to allocate a new payload type. The General
Extension payload can be used in any MIKEY message and is part of the
authenticated/signed data part. There is an 8-bit type field in that
payload. The type code assignment is IANA-managed, and RFC 3830
requires IETF consensus for assignments from the public range of
0-240.
The Open Mobile Alliance's (OMA) Browser and Content (BAC) Broadcast
(BCAST) group's Service and Content Protection specification [2]
specifies the use of a short-term key message (STKM) and a long-term
key message (LTKM) that carry attributes related to Service and
Content protection. Note that any keys associated with the
attributes are part of the MIKEY KEMAC payload. This document
specifies the use of the General Extension payload of MIKEY to carry
the LTKMs or STKMs.
RFC 3830 [1], the MIKEY General Extension payload defined in [3], and
the 3rd Generation Partnership Project (3GPP)'s Multimedia Broadcast/
Multicast Service (MBMS) document [4] specify the transport of MIKEY
messages via unicast or broadcast and the OMA specifications use
either for transport of MIKEY messages.
2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [5].
OMA BCAST STKM/LTKM MIKEY General Extension: We refer to the General
Extension type -- 5 -- as the OMA BCAST STKM/LTKM MIKEY General
Extension .
Dondeti, et al. Informational [Page 2]
RFC 4909 OMA BCAST MIKEY General Extension June 2007
3. MIKEY General Extension for OMA BCAST Usage
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! Next ! Type ! Length !
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! OMA BCAST S/LTKM Subtype (variable length) ~
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 1: OMA BCAST MIKEY General Extension
Section 6.1 of RFC 3830 specifies the first three fields of the
General Extension Payload and defines a variable length Data field.
This document specifies the use of Type 5 for OMA BCAST Service and
Content Protection using the Smartcard Profile. The contents of the
variable length data field are defined below.
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