One document matched: draft-ietf-abfab-aaa-saml-00.txt
ABFAB J. Howlett
Internet-Draft JANET(UK)
Intended status: Standards Track S. Hartman
Expires: April 21, 2011 Painless Security
October 18, 2010
An AAA Attribute for SAML Constructs
draft-ietf-abfab-aaa-saml-00
Abstract
This document defines the SAML-Construct attribute for use with AAA
protocols. This attribute is used for encapsulating Security
Assertion Mark-up Language (SAML) constructs.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on April 21, 2011.
Copyright Notice
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1. Introduction
This document defines the SAML-Construct attribute for use with AAA
protocols. This attribute encapsulates Security Assertion Mark-up
Language (SAML) constructs.
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2. Conventions
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 [RFC2119].
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3. SAML Construct Attribute
This attribute contains a SAML construct. This attribute MAY be used
with any AAA protocol that can use RADIUS-formatted attributes, such
as RADIUS [RFC2865] or DIAMETER [RFC3588]. Where multiple SAML-
Construct attributes are included in an AAA protocol message (for
example, a RADIUS packet), the Construct field of the attributes are
to be concatenated to form a SAML construct.
A summary of the SAML-Construct format is shown below. The fields
are transmitted from left to right.
0 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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | MT | Construct...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 1
Type TBD
Length >=4
Construct Type (CT) The Construct Type field is a one octet
enumerated field. It takes an integer value denoting the type of
SAML construct in the Construct field. TBD SAML Request protocol
element TBD SAML Response protocol element All other values are
reserved for IANA allocation subject to the provisions of section
5.
Construct The Construct field is one or more octets containing a
SAML construct. If larger than a single attribute, the SAML
construct data MUST be split on 253- octet boundaries over as many
attributes as necessary. On reception, the SAML construct is
reconstructed by concatenating the contents of all SAML-Construct
attributes.
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4. Security Considerations
TODO
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5. IANA Considerations
The following numbers have been assigned in the RADIUS Attribute
Types registry. A new RADIUS Attribute Type: SAML-Construct (TDB)
The enumerated values of the newly registered RADIUS Attribute Type
as defined in this document were assigned at the same time as the new
Attribute Type. For the SAML-Construct Attribute:
TBD SAML Request protocol element
TBD SAML Response protocol element
Assignments of additional enumerated values for the RADIUS attributes
defined in this document are to be processed as described in
[RFC3575], subject to the additional requirements of a published
specification.
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6. References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", RFC 2119, BCP 14, March 1997.
[RFC2865] Rigney, C., Willens, S., Rubens, A., and W. Simpson,
"Remote Authentication Dial In User Service (RADIUS)",
RFC 2865, June 2000.
[RFC3575] Aboba, B., "IANA Considerations for RADIUS (Remote
Authentication Dial In User Service)", RFC 3575,
July 2003.
[RFC3588] Calhoun, P., Loughney, J., Guttman, E., Zorn, G., and J.
Arkko, "Diameter Base Protocol", RFC 3588, September 2003.
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Authors' Addresses
Josh Howlett
JANET(UK)
Email: josh.howlett@ja.net
Sam Hartman
Painless Security
Email: hartmans-ietf@mit.edu
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