Printable Version: RFC1487.PDF
RFC 1487 X.500 LDAP July 1993
5. Protocol Element Encodings
The protocol elements of LDAP are encoded for exchange using the
Basic Encoding Rules (BER) [11] of ASN.1 [10]. However, due to the
high overhead involved in using certain elements of the BER, the
following additional restrictions are placed on BER-encodings of LDAP
protocol elements:
(1) Only the definite form of length encoding will be used.
(2) Bitstrings and octet strings will be encoded in the primitive form
only.
6. Security Considerations
This version of the protocol provides facilities only for simple
authentication using a cleartext password, and for kerberos version 4
authentication. Future versions of LDAP will likely include support
for other authentication methods.
7. Bibliography
[1] The Directory: Overview of Concepts, Models and Service. CCITT
Recommendation X.500, 1988.
[2] Information Processing Systems -- Open Systems Interconnection --
The Directory: Overview of Concepts, Models and Service. ISO/IEC
JTC 1/SC21; International Standard 9594-1, 1988.
[3] Rose, M., "Directory Assistance Service", RFC 1202, Performance
Systems International, Inc., February 1991.
[4] Howes, R., Smith, M., and B. Beecher, "DIXIE Protocol
Specification", RFC 1249, University of Michigan, August 1991.
[5] Kille, S., "A String Representation of Distinguished Names", RFC
1485, ISODE Consortium, July 1993.
[6] Howes, T., Kille, S., Yeong, W., and C. Robbins, "The String
Representation of Standard Attribute Syntaxes", RFC 1488,
University of Michigan, ISODE Consortium, Performance Systems
International, NeXor Ltd., July 1993.
[7] Kerberos Authentication and Authorization System. S.P. Miller,
B.C. Neuman, J.I. Schiller, J.H. Saltzer; MIT Project Athena
Documentation Section E.2.1, December 1987.
Yeong, Howes & Kille [Page 15]