Lightweight Directory Access Protocol (v3): Attribute Syntax Definitions (RFC2252)
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2019-Feb-15
Internet Society Requests For Comment (RFCs)
M. Wahl: AUTHOR [+3]
This document defines a set of syntaxes for LDAPv3, and the rules by which attribute values of these syntaxes are represented as octet strings for transmission in the LDAP protocol. [STANDARDS-TRACK]
Network Working Group M. Wahl Request for Comments: 2252 Critical Angle Inc. Category: Standards Track A. Coulbeck Isode Inc. T. Howes Netscape Communications Corp. S. Kille Isode Limited December 1997
Lightweight Directory Access Protocol (v3): Attribute Syntax Definitions
1. Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
Copyright (C) The Internet Society (1997). All Rights Reserved.
This document describes a directory access protocol that provides both read and update access. Update access requires secure authentication, but this document does not mandate implementation of any satisfactory authentication mechanisms.
In accordance with RFC 2026, section 4.4.1, this specification is being approved by IESG as a Proposed Standard despite this limitation, for the following reasons:
a. to encourage implementation and interoperability testing of these protocols (with or without update access) before they are deployed, and
b. to encourage deployment and use of these protocols in read-only applications. (e.g. applications where LDAPv3 is used as a query language for directories which are updated by some secure mechanism other than LDAP), and
Wahl, et. al. Standards Track [Page 1]
RFC 2252 LADPv3 Attributes December 1997
c. to avoid delaying the advancement and deployment of other Internet standards-track protocols which require the ability to query, but not update, LDAPv3 directory servers.
Readers are hereby warned that until mandatory authentication mechanisms are standardized, clients and servers written according to this specification which make use of update functionality are UNLIKELY TO INTEROPERATE, or MAY INTEROPERATE ONLY IF AUTHENTICATION IS REDUCED TO AN UNACCEPTABLY WEAK LEVEL.
Implementors are hereby discouraged from deploying LDAPv3 clients or servers which implement the update functionality, until a Proposed Standard for mandatory authentication in LDAPv3 has been approved and published as an RFC.
The Lightweight Directory Access Protocol (LDAP)  requires that the contents of AttributeValue fields in protocol elements be octet strings. This document defines a set of syntaxes for LDAPv3, and the rules by which attribute values of these syntaxes are represented as octet strings for transmission in the LDAP protocol. The syntaxes defined in this document are referenced by this and other documents that define attribute types. This document also defines the set of attribute types which LDAP servers should support.
This document defines the framework for developing schemas for directories accessible via the Lightweight Directory Access Protocol.
Schema is the collection of attribute...