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NETWORK WORKING GROUP N. Williams
Internet-Draft Sun
Expires: December 30, 2004 July 2004
GSS-API Domain-Based Service Names Mapping for the Kerberos V GSS
Mechanism
draft-williams-krb5-gssapi-domain-based-names-00.txt
Status of this Memo
By submitting this Internet-Draft, I certify that any applicable
patent or other IPR claims of which I am aware have been disclosed,
and any of which I become aware will be disclosed, in accordance with
RFC 3668.
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The list of current Internet-Drafts can be accessed at
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This Internet-Draft will expire on December 30, 2004.
Copyright Notice
Copyright (C) The Internet Society (2004). All Rights Reserved.
Abstract
This document describes the mapping of GSS-API domainname-based
service principal names onto Kerberos V principal names.
Williams Expires December 30, 2004 [Page 1]
Internet-Draft Kerberos Domain Based Names July 2004
Table of Contents
1. Conventions used in this document . . . . . . . . . . . . . . . 3
2. Domain-Based Names for the Kerberos V GSS-API Mechanism . . . . 4
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Security Considerations . . . . . . . . . . . . . . . . . . . . 6
5. Normative . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
Intellectual Property and Copyright Statements . . . . . . . . . 7
Williams Expires December 30, 2004 [Page 2]
Internet-Draft Kerberos Domain Based Names July 2004
1. Conventions used in this document
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 [RFC2119].
Williams Expires December 30, 2004 [Page 3]
Internet-Draft Kerberos Domain Based Names July 2004
2. Domain-Based Names for the Kerberos V GSS-API Mechanism
In accordance with [DOMAIN-BASED-NAMES] this document provides the
mechanism-specific details needed to implement GSS-API [RFC2743]
domain-based service names with the Kerberos V GSS-API mechanism
[RFC1964].
GSS_C_NT_DOMAINBASED_SERVICE name are mapped to Kerberos V principal
names as follows:
o the <service> name becomes the first (0th) component of the
Kerberos V principal name;
o the <domain> name becomes the second component of the Kerberos V
principal name; if the <domain> name is missing in the GSS name
then a default domain name MUST be substituted (though no
mechanism for determining this default is given here; this is an
implementation-specific detail);
o the <hostname>, if present, becomes the third component of the
Kerberos V principal name;
o the realm of the resulting principal name is that which
corresponds to the domain name, treated as a hostname, or, if none
can be determined in this way, then the realm of the hostname, if
present, and, finally, if that is not possible, the default realm
for the GSS-API caller.
The same name canonicalization considerations and methods as used
elsewhere in the Kerberos V GSS-API mechanism [RFC1964] and Kerberos
V [RFC1510] in general apply here.
Williams Expires December 30, 2004 [Page 4]
Internet-Draft Kerberos Domain Based Names July 2004
3. Examples
o "ldap@@ds1.example.tld" may map to "ldap/example.tld/
ds1.example.tld@EXAMPLE.TLD"
o "ldap@example.tld@ds1.example.tld" may map to "ldap/example.tld/
ds1.example.tld@EXAMPLE.TLD"
o "kadmin@@kdc1.example.tld" may map to "kadmin/example.tld/
kdc1.example.tld@EXAMPLE.TLD"
o "kadmin@example.tld@kdc1.example.tld" may map to "kadmin/
example.tld/kdc1.example.tld@EXAMPLE.TLD"
Williams Expires December 30, 2004 [Page 5]
Internet-Draft Kerberos Domain Based Names July 2004
4. Security Considerations
See [DOMAIN-BASED-NAMES].
5 Normative
[RFC1510] Kohl, J. and B. Neuman, "The Kerberos Network
Authentication Service (V5)", RFC 1510, September 1993.
[RFC1964] Linn, J., "The Kerberos Version 5 GSS-API Mechanism", RFC
1964, June 1996.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2743] Linn, J., "Generic Security Service Application Program
Interface Version 2, Update 1", RFC 2743, January 2000.
Author's Address
Nicolas Williams
Sun Microsystems
5300 Riata Trace Ct
Austin, TX 78727
US
EMail: Nicolas.Williams@sun.com
Williams Expires December 30, 2004 [Page 6]
Internet-Draft Kerberos Domain Based Names July 2004
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Copyright Statement
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Acknowledgment
Funding for the RFC Editor function is currently provided by the
Internet Society.
Williams Expires December 30, 2004 [Page 7]
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