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ITU-T X.501 (2019) Amd. 1 (10/2021)

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Information Technology - Open systems Interconnection - The Directory - Models – Amendment 1: Miscellaneous enhancements
Amendment 1 to Rec. ITU-T X.501 (2019) \| ISO/IEC 9594-2:2020 updates clause 9.2 and Annex A. The amendment has successfully gone through the enquiry state at ISO/IEC and ISO/IEC does not anymore accept any technical comments. ITU-T SG 17 members have been part of the ISO/IEC ballot process and have had ample opportunities in the past to influence the technical content.

Citation:	https://handle.itu.int/11.1002/1000/14790
Series title:	X series: Data networks, open system communications and security X.500-X.599: Directory
Approval date:	2021-10-14
Identical standard:	ISO/IEC 9594-2/Amd1 (Common)
Approval process:	AAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 17
Further details:	Patent statement(s) Development history [4 related work items in progress]

EditionsImplementer's guide(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
9.2	X.501 (2019) Amd. 2 (10/2024)	In force	here	here	here
9.1	X.501 (2019) Amd. 1 (10/2021)	In force	here	-	here
9	X.501 (10/2019)	In force	here	here	here
8	X.501 (10/2016)	Superseded	here	here	here
7	X.501 (10/2012)	Superseded	here	here	here
6.3	X.501 (2008) Cor. 3 (10/2012)	Superseded	-	-	here
6.2	X.501 (2008) Cor. 2 (04/2012)	Superseded	-	-	here
6.1	X.501 (2008) Cor. 1 (02/2011)	Superseded	-	here	here
6	X.501 (11/2008)	Superseded	here	here	here
5.4	X.501 (2005) Cor. 4 (04/2012)	Superseded	-	-	here
5.3	X.501 (2005) Cor. 3 (02/2011)	Superseded	-	here	here
5.2	X.501 (2005) Cor. 2 (11/2008)	Superseded	-	-	here
5.1	X.501 (2005) Cor. 1 (05/2008)	Superseded	-	-	here
5.0	X.501 (2005) Err. 1 (08/2006)	Superseded	-	-	here
5	X.501 (08/2005)	Superseded	here	here	here
4.3	X.501 (2001) Cor. 3 (05/2008)	Superseded	-	-	here
4.2	X.501 (2001) Technical Cor. 2 (11/2005)	Superseded	-	-	here
4.1	X.501 (2001) Technical Cor. 1 (05/2005)	Superseded	-	-	here
4	X.501 (02/2001)	Superseded	here	here	here
3.4	X.501 (1997) Technical Cor. 3 (05/2005)	Superseded	-	-	here
3.3	X.501 (1997) Technical Cor. 2 (02/2001)	Superseded	-	here	here
3.2	X.501 (1997) Amd. 1 (03/2000)	Superseded	here	-	here
3.1	X.501 (1997) Technical Cor. 1 (03/2000)	Superseded	-	here	here
3	X.501 (08/1997)	Superseded	here	here	here
2	X.501 (11/1993)	Superseded	-	-	here
1	X.501 (11/1988)	Superseded	-	here	here

Title	Approved on	Download
Directory Implementers' Guide for ITU-T X.500-series - Version 15, August 2001	2001-09-07	here
Directory Implementers' Guide for ITU-T X.500-series - Version 14, March 2001	2001-03-01	here

Title	Approved on	Download
Guidelines for identity-based cryptosystems used for cross-domain secure communications	2023	here
Overview of hybrid approaches for key exchange with quantum key distribution	2022	here
Guidelines for security management of using artificial intelligence technology	2022	here
Successful use of security standards (2nd edition)	2020	here
Description of the incubation mechanism and ways to improve it	2020	here
Strategic approaches to the transformation of security studies	2020	here