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openldap/doc/drafts/draft-zeilenga-ldap-x509.txt
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2004-10-23 00:14:06 +00:00

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INTERNET-DRAFT Kurt D. Zeilenga
Intended Category: Standard Track OpenLDAP Foundation
Expires in six months 17 October 2004
Obsoletes: RFC 2252, RFC 2256
LDAP X.509 Certificate Schema
<draft-zeilenga-ldap-x509-00.txt>
Status of this Memo
This document is intended to be, after appropriate review and
revision, submitted to the RFC Editor as an Standard Track document.
Distribution of this memo is unlimited. Technical discussion of this
document will take place on the IETF LDAP Extensions mailing list
<ldapext@ietf.org>. Please send editorial comments directly to the
author <Kurt@OpenLDAP.org>.
This document is intended to be published in conjunction to the
revised LDAP TS [Roadmap] when, in conjunction with this document,
obsoletes RFC 2252 and RFC 2256 in their entirety.
By submitting this Internet-Draft, I accept the provisions of Section
4 of RFC 3667. By submitting this Internet-Draft, I certify that any
applicable patent or other IPR claims of which I am aware have been
disclosed, or will be disclosed, and any of which I become aware will
be disclosed, in accordance with RFC 3668.
Internet-Drafts are working documents of the Internet Engineering Task
Force (IETF), its areas, and its working groups. Note that other
groups may also distribute working documents as Internet-Drafts.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference material
or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
<http://www.ietf.org/ietf/1id-abstracts.txt>. The list of
Internet-Draft Shadow Directories can be accessed at
<http://www.ietf.org/shadow.html>.
Copyright (C) The Internet Society (2004). All Rights Reserved.
Please see the Full Copyright section near the end of this document
for more information.
Zeilenga draft-zeilenga-ldap-x509-00 [Page 1]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
Abstract
This document describes schema for representing X.509 certificates,
X.521 security information, and related elements in directories
accessible using the Lightweight Directory Access Protocol (LDAP).
The LDAP definitions for these X.509 and X.521 schema elements
replaces those provided in RFC 2252 and RFC 2256.
1. Background and Intended Use
This document provides LDAP schema definitions for a subset of
elements specified in X.509 [X.509] and X.521 [X.521], including
attribute types for certificates, cross certificate pairs, and
certificate revocation lists; matching rules to be used with these
attribute types; and related object classes. LDAP syntax definitions
are also provided for associated assertion and attribute values.
As the semantics of these elements are as defined in X.509 and X.521,
knowledge of X.509 and X.521 is necessary to make use of the LDAP
schema definitions provided herein.
This document, together with [Roadmap], obsoletes RFC 2252 and RFC
2256 in their entirety. The changes made since RFC 2252 and RFC 2256
include:
- addition of pkiUser, pkiCA, and deltaCRL classes;
- updated of attribute types to include equality matching rules in
accordance with their X.500 specifications;
- addition of certificate, certificate pair, certificate list, and
algorithm identifer matching rules; and
- addition of LDAP syntax for assertion syntaxes for these matching
rules.
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 BCP 14 [RFC2119].
Schema definitions are provided using LDAP description formats
[Models]. Definitions provided here are formatted (line wrapped) for
readability.
2. Syntaxes
This section describes various syntaxes used to transfer certificates
and related data types in LDAP.
Zeilenga draft-zeilenga-ldap-x509-00 [Page 2]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
2.1. Certificate
( 1.3.6.1.4.1.1466.115.121.1.8 DESC 'X.509 Certificate' )
A value of this syntax is an X.509 Certificate [Section 7, X.509].
Due to changes made to the ASN.1 definition of a Certificate made
through time, no LDAP-specific encoding is defined for this syntax.
Values of this syntax are to encoded using DER [X.690] and MUST only
be transferred using the ;binary transfer option [Binary]. That is,
by requesting and returning values using attribute descriptions such
as "userCertificate;binary".
As values of this syntax contain digitally-signed data, values of this
syntax, and the form of the value, MUST be preserved as presented.
2.2. CertificateList
( 1.3.6.1.4.1.1466.115.121.1.9 DESC 'X.509 Certificate List' )
A value of this syntax is an X.509 CertificateList [Section 7.3,
X.509].
Due to changes made to the ASN.1 definition of a CertificateList made
through time, no LDAP-specific encoding is defined for this syntax.
Values of this syntax are to encoded using DER [X.690] and MUST only
be transferred using the ;binary transfer option [Binary]. That is,
by requesting and returning values using attribute descriptions such
as "certificateRevocationList;binary".
As values of this syntax contain digitally-signed data, values of this
syntax, and the form of the value, MUST be preserved as presented.
2.3. CertificatePair
( 1.3.6.1.4.1.1466.115.121.1.10 DESC 'X.509 Certificate Pair' )
A value of this syntax is an X.509 CertificatePair [Section 11.2.3,
X.509].
Due to changes made to the ASN.1 definition of an X.509
CertificatePair made through time, no LDAP-specific encoding is
defined for this syntax. Values of this syntax are to encoded using
DER [X.690] and MUST only be transferred using the ;binary transfer
option [Binary]. That is, by requesting and returning values using
attribute descriptions such as "crossCertificatePair;binary".
Zeilenga draft-zeilenga-ldap-x509-00 [Page 3]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
As values of this syntax contain digitally-signed data, values of this
syntax, and the form of the value, MUST be preserved as presented.
2.4 SupportedAlgorithm
( 1.3.6.1.4.1.1466.115.121.1.49
DESC 'X.508 Supported Algorithm' )
A value of this syntax is an X.509 SupportedAlgorithm [Section 11.2.7,
X.509].
Due to changes made to the ASN.1 definition of an X.509
SupportedAlgorithm made through time, no LDAP-specific encoding is
defined for this syntax. Values of this syntax are to encoded using
DER [X.690] and MUST only be transferred using the ;binary transfer
option [Binary]. That is, by requesting and returning values using
attribute descriptions such as "supportedAlgorithms;binary".
As values of this syntax contain digitally-signed data, values of this
syntax, and the form of the value, MUST be preserved as presented.
2.5. CertificateExactAssertion
( IANA-ASSIGNED-OID.1 DESC 'X.509 Certificate Exact Assertion' )
A value of this syntax is an X.509 CertificateExactAssertion [Section
11.3.1, X.509].
The LDAP-specific encoding used for this syntax is described by the
following ABNF [RFC2234]:
certificateExactAssertion = serialNumber DOLLAR issuer
serialNumber = number
issuer = distinguishedName
where <number> and <DOLLAR> are as given in [Models] and
<distinguishedName> is as given in [LDAPDN].
Example: 10$cn=Example$CA,dc=example,dc=com
Note: DOLLAR ('$') characters may appear in the <issuer> production.
2.6. CertificateAssertion
( IANA-ASSIGNED-OID.2 DESC 'X.509 Certificate Assertion' )
Zeilenga draft-zeilenga-ldap-x509-00 [Page 4]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
A value of this syntax is an X.509 CertificateAssertion [Section
11.3.2, X.509].
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.1 provides an equivalent ABNF grammar for this syntax.
2.7. CertificatePairExactAssertion
( IANA-ASSIGNED-OID.3
DESC 'X.509 Certificate Pair Exact Assertion' )
A value of this syntax is an X.509 CertificatePairExactAssertion
[Section 11.3.3, X.509].
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.2 provides an equivalent ABNF grammar for this syntax.
2.8. CertificatePairAssertion
( IANA-ASSIGNED-OID.4 DESC 'X.509 Certificate Pair Assertion' )
A value of this syntax is an X.509 CertificatePairAssertion [Section
11.3.4, X.509].
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.3 provides an equivalent ABNF grammar for this syntax.
2.9. CertificateListExactAssertion
( IANA-ASSIGNED-OID.5
DESC 'X.509 Certificate List Exact Assertion' )
A value of this syntax is an X.509 CertificateListExactAssertion
[Section 11.3.5, X.509].
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.4 provides an equivalent ABNF grammar for this syntax.
2.10. CertificateListAssertion
( IANA-ASSIGNED-OID.6 DESC 'X.509 Certificate List Assertion' )
A value of this syntax is an X.509 CertificateListAssertion [Section
11.3.6, X.509].
Zeilenga draft-zeilenga-ldap-x509-00 [Page 5]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.5 provides an equivalent ABNF grammar for this syntax.
2.11 AlgorithmIdentifier
( IANA-ASSIGNED-OID.7 DESC 'X.509 Algorithm Identifier' )
A value of this syntax is an X.509 AlgorithmIdentifier [Section 7,
X.509].
Values of this syntax are to be encoded using GSER [RFC3641].
Appendix A.6 provides an equivalent ABNF grammar for this syntax.
3. Matching Rules
This section introduces a set of certificate and related matching
rules for use in LDAP. These rules are intended to act in accordance
with their X.500 counterparts.
3.1. certificateExactMatch
The certificateExactMatch matching rule compares the presented
certificate exact assertion value with an attribute value of the
certificate syntax as described in Section 11.3.1 of [X.509].
( 2.5.13.34 NAME 'certificateExactMatch'
DESC 'X.509 Certificate Exact Match'
SYNTAX IANA-ASSIGNED-OID.1 )
3.2. certificateMatch
The certificateMatch matching rule compares the presented certificate
assertion value with an attribute value of the certificate syntax as
described in Section 11.3.2 of [X.509].
( 2.5.13.35 NAME 'certificateMatch'
DESC 'X.509 Certificate Match'
SYNTAX IANA-ASSIGNED-OID.2 )
3.3. certificatePairExactMatch
The certificatePairExactMatch matching rule compares the presented
certificate pair exact assertion value with an attribute value of the
Zeilenga draft-zeilenga-ldap-x509-00 [Page 6]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
certificate pair syntax as described in Section 11.3.3 of [X.509].
( 2.5.13.36 NAME 'certificatePairExactMatch'
DESC 'X.509 Certificate Pair Exact Match'
SYNTAX IANA-ASSIGNED-OID.3 )
3.4. certificatePairMatch
The certificatePairMatch matching rule compares the presented
certificate pair assertion value with an attribute value of the
certificate pair syntax as described in Section 11.3.4 of [X.509].
( 2.5.13.37 NAME 'certificatePairMatch'
DESC 'X.509 Certificate Pair Match'
SYNTAX IANA-ASSIGNED-OID.4 )
3.5. certificateListExactMatch
The certificateListExactMatch matching rule compares the presented
certificate list exact assertion value with an attribute value of the
certificate pair syntax as described in Section 11.3.5 of [X.509].
( 2.5.13.38 NAME 'certificateListExactMatch'
DESC 'X.509 Certificate List Exact Match'
SYNTAX IANA-ASSIGNED-OID.5 )
3.6. certificateListMatch
The certificateListMatch matching rule compares the presented
certificate list assertion value with an attribute value of the
certificate pair syntax as described in Section 11.3.6 of [X.509].
( 2.5.13.39 NAME 'certificateListMatch'
DESC 'X.509 Certificate List Match'
SYNTAX IANA-ASSIGNED-OID.6 )
3.7. algorithmIdentifierMatch
The algorithmIdentifierMatch mating rule compares a presented
algorithm identifier with an attribute value of supported algorithm as
described in Section 11.3.7 of [X.509].
( 2.5.13.40 NAME 'algorithmIdentifier'
DESC 'X.509 Algorithm Identifier Match'
Zeilenga draft-zeilenga-ldap-x509-00 [Page 7]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
SYNTAX IANA-ASSIGNED-OID.7 )
4. Attribute Types
This section details a set of certificate and related attribute types
for use in LDAP.
4.1. userCertificate
The userCertificate attribute holds the X.509 certificates issued to
the user by one or more certificate authorities, as discussed in
Section 11.2.1 of [X.509].
( 2.5.4.36 NAME 'userCertificate'
DESC 'X.509 user certificate'
EQUALITY certificateExactMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.8 )
As required by this attribute type's syntax, values of this attribute
are requested and transferred using the attribute description
"userCertificate;binary".
4.2. cACertificate
The cACertificate attribute holds the X.509 certificates issued to the
certificate authority (CA), as discussed in Section 11.2.2 of [X.509].
( 2.5.4.37 NAME 'cACertificate'
DESC 'X.509 CA certificate'
EQUALITY certificateExactMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.8 )
As required by this attribute type's syntax, values of this attribute
are requested and transferred using the attribute description
"cACertificate;binary".
4.3. crossCertificatePair
The crossCertificatePair attribute holds an X.509 certificate pair, as
discussed in Section 11.2.3 of [X.509].
( 2.5.4.40 NAME 'crossCertificatePair'
DESC 'X.509 cross certificate pair'
EQUALITY certificatePairExactMatch
Zeilenga draft-zeilenga-ldap-x509-00 [Page 8]
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SYNTAX 1.3.6.1.4.1.1466.115.121.1.10 )
As required by this attribute type's syntax, values of this attribute
are requested and transferred using the attribute description
"crossCertificatePair;binary".
4.4. certificateRevocationList
The certificateRevocationList attribute holds certificate lists, as
discussed in 11.2.4 of [X.509].
( 2.5.4.39 NAME 'certificateRevocationList'
DESC 'X.509 certificate revocation list'
EQUALITY certificateListExactMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.9 )
As required by this attribute type's syntax, values of this attribute
are requested and transferred using the attribute description
"certificateRevocationList;binary".
4.5. authorityRevocationList
The authorityRevocationList attribute holds certificate lists, as
discussed in 11.2.5 of [X.509].
( 2.5.4.38 NAME 'authorityRevocationList'
DESC 'X.509 authority revocation list'
EQUALITY certificateListExactMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.9 )
As required by this attribute type's syntax, values of this attribute
are requested and transferred using the attribute description
"authorityRevocationList;binary".
4.6. deltaRevocationList
The deltaRevocationList attribute holds certificate lists, as
discussed in 11.2.6 of [X.509].
( 2.5.4.53 NAME 'deltaRevocationList'
DESC 'X.509 delta revocation list'
EQUALITY certificateListExactMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.9 )
As required by this attribute type's syntax, values of this attribute
Zeilenga draft-zeilenga-ldap-x509-00 [Page 9]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
MUST be requested and transferred using the attribute description
"deltaRevocationList;binary".
4.7. supportedAlgorithms
The supportedAlgorithms attribute holds supported algorithms, as
discussed in 11.2.7 of [X.509].
( 2.5.4.52 NAME 'supportedAlgorithms'
DESC 'X.509 supported algorithms'
EQUALITY algorithmIdentifierMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.49 )
As required by this attribute type's syntax, values of this attribute
MUST be requested and transferred using the attribute description
"supportedAlgorithms;binary".
5. Object Classes
This section details a set of certificate-related object classes for
use in LDAP.
5.1. pkiUser
This object class is used in augment entries for objects that may be
subject to certificates, as defined in Section 11.1.1 of [X.509].
( 2.5.6.21 NAME 'pkiUser'
DESC 'X.509 PKI User'
SUP top AUXILIARY
MAY userCertificate )
5.2. pkiCA
This object class is used to augment entries for objects which act as
certificate authorities, as defined in Section 11.1.2 of [X.509]
( 2.5.6.22 NAME 'pkiCA'
DESC 'X.509 PKI Certificate Authority'
SUP top AUXILIARY
MAY ( cACertificate $ certificateRevocationList $
authorityRevocationList $ crossCertificatePair ) )
Zeilenga draft-zeilenga-ldap-x509-00 [Page 10]
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5.3. cRLDistributionPoint
This class is used to represent objects which act as CRL distribution
points, as discussed in Section 11.1.3 of [X.509].
( 2.5.6.19 NAME 'cRLDistributionPoint'
DESC 'X.509 CRL distribution point'
SUP top STRUCTURAL
MUST cn
MAY ( certificateRevocationList $
authorityRevocationList $ deltaRevocationList ) )
5.4 deltaCRL
The deltaCRL object class is used to augment entries no hold delta
revocation lists, as discussed in Section 11.1.4 of [X.509].
( 2.5.6.23 NAME 'deltaCRL'
DESC 'X.509 delta CRL'
SUP top AUXILIARY
MAY deltaRevocationList )
5.5. strongAuthenticationUser
This object class is used to augment entries for objects participating
in certificate-based authentication, as defined in Section 6.15 of
[X.521]. This object class is deprecated in favor of pkiUser.
( 2.5.6.15 NAME 'strongAuthenticationUser'
DESC 'X.521 strong authentication user'
SUP top AUXILIARY
MUST userCertificate )
5.6. userSecurityInformation
This object class is used to augment entries with needed additional
associated security information, as defined in Section 6.16 of
[X.521].
( 2.5.6.18 NAME 'userSecurityInformation'
DESC 'X.521 user security information'
SUP top AUXILIARY
MAY ( supportedAlgorithms ) )
Zeilenga draft-zeilenga-ldap-x509-00 [Page 11]
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5.7. certificationAuthority
This object class is used to augment entries for objects which act as
certificate authorities, as defined in Section 6.17 of [X.521]. This
object class is deprecated in favor of pkiCA.
( 2.5.6.16 NAME 'certificationAuthority'
DESC 'X.509 certificate authority'
SUP top AUXILIARY
MUST ( authorityRevocationList $
certificateRevocationList $ cACertificate )
MAY crossCertificatePair )
5.8. certificationAuthority-V2
This object class is used to augment entries for objects which act as
certificate authorities, as defined in Section 6.18 of [X.521]. This
object class is deprecated in favor of pkiCA.
( 2.5.6.16.2 NAME 'certificationAuthority-V2'
DESC 'X.509 certificate authority, version 2'
SUP certificationAuthority AUXILIARY
MAY deltaRevocationList )
6. Security Considerations
The directory administrator is to use the server's access control
facilities to restrict access as desired.
General LDAP security considerations [Roadmap] apply.
7. IANA Considerations
7.1. Object Identifier Registration
It is requested that IANA register upon Standards Action an LDAP
Object Identifier for use in this technical specification.
Subject: Request for LDAP OID Registration
Person & email address to contact for further information:
Kurt Zeilenga <kurt@OpenLDAP.org>
Specification: RFC XXXX
Author/Change Controller: IESG
Comments:
Identifies the LDAP X.509 Certificate schema elements
Zeilenga draft-zeilenga-ldap-x509-00 [Page 12]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
7.2. Registration of the descriptor
It is requested that IANA update upon Standards Action the LDAP
Descriptor registry as indicated below.
Subject: Request for LDAP Descriptor Registration
Descriptor (short name): see table
Object Identifier: see table
Person & email address to contact for further information:
Kurt Zeilenga <kurt@OpenLDAP.org>
Usage: see table
Specification: RFC XXXX
Author/Change Controller: IESG
algorithmIdentifierMatch R 2.5.13.40
authorityRevocationList A 2.5.4.38 *
cACertificate A 2.5.4.37 *
cRLDistributionPoint O 2.5.6.19 *
certificateExactMatch R 2.5.13.34
certificateListExactMatch R 2.5.13.38
certificateListMatch R 2.5.13.39
certificateMatch R 2.5.13.35
certificatePairExactMatch R 2.5.13.36
certificatePairMatch R 2.5.13.37
certificateRevocationList A 2.5.4.39 *
certificationAuthority O 2.5.6.16 *
certificationAuthority-V2 O 2.5.6.16.2 *
crossCertificatePair A 2.5.4.40 *
deltaCRL O 2.5.6.23
deltaRevocationList A 2.5.4.53 *
pkiCA O 2.5.6.22
pkiUser O 2.5.6.21
strongAuthenticationUser O 2.5.6.15 *
supportedAlgorithms A 2.5.4.52 *
userCertificate A 2.5.4.36 *
userSecurityInformation O 2.5.6.18 *
* Updates previous registration
8. Acknowledgments
This document is based upon X.509, a product of the ITU-T. A number
of LDAP schema definitions were based on those found RFC 2252 and RFC
2256, both products of the IETF ASID WG.
Additional material was borrowed from prior works by David Chadwick
and/or Steven Legg to refine LDAP X.509 Schema.
Zeilenga draft-zeilenga-ldap-x509-00 [Page 13]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
9. Author's Address
Kurt D. Zeilenga
OpenLDAP Foundation
Email: Kurt@OpenLDAP.org
10. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14 (also RFC 2119), March 1997.
[RFC2234] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", RFC 2234, November 1997.
[RFC3641] Legg, S., "Generic String Encoding Rules for ASN.1
Types", RFC 3641, October 2003.
[Roadmap] Zeilenga, K. (editor), "LDAP: Technical Specification
Road Map", draft-ietf-ldapbis-roadmap-xx.txt, a work in
progress.
[Models] Zeilenga, K. (editor), "LDAP: Directory Information
Models", draft-ietf-ldapbis-models-xx.txt, a work in
progress.
[Binary] Legg, S., "Lightweight Directory Access Protocol (LDAP):
The Binary Encoding Option",
draft-legg-ldap-binary-xx.txt, a work in progress.
[X.509] International Telecommunication Union -
Telecommunication Standardization Sector, "The
Directory: Authentication Framework", X.509(2000).
[X.521] International Telecommunication Union -
Telecommunication Standardization Sector, "The
Directory: Selected Object Classes", X.521(2000).
[X.680] International Telecommunication Union -
Telecommunication Standardization Sector, "Abstract
Syntax Notation One (ASN.1) - Specification of Basic
Notation", X.680(1997) (also ISO/IEC 8824-1:1998).
[X.690] International Telecommunication Union -
Telecommunication Standardization Sector, "Specification
of ASN.1 encoding rules: Basic Encoding Rules (BER),
Canonical Encoding Rules (CER), and Distinguished
Zeilenga draft-zeilenga-ldap-x509-00 [Page 14]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
Encoding Rules (DER)", X.690(1997) (also ISO/IEC
8825-1:1998).
11. Informative References
[RFC3383] Zeilenga, K., "IANA Considerations for LDAP", BCP 64
(also RFC 3383), September 2002.
[RFC3642] Legg, S., "Common Elements of GSER Encodings", RFC 3642,
October 2003.
[BCP64bis] Zeilenga, K., "IANA Considerations for LDAP",
draft-ietf-ldapbis-bcp64-xx.txt, a work in progress.
Appendix A.
This appendix is informative.
This appendix, once written, will provide ABNF [RFC2234] grammars for
GSER-based LDAP-specific encodings specified in this document. These
grammars where produced using, and rely on, Common Elements for GSER
Encodings [RFC3342].
Intellectual Property Rights
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be found
in BCP 78 and BCP 79.
Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this specification
can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
Zeilenga draft-zeilenga-ldap-x509-00 [Page 15]
INTERNET-DRAFT LDAP X.509 Schema 17 October 2004
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.
Full Copyright
Copyright (C) The Internet Society (2004). This document is subject
to the rights, licenses and restrictions contained in BCP 78, and
except as set forth therein, the authors retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Zeilenga draft-zeilenga-ldap-x509-00 [Page 16]
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