In force components |
Number
|
Title |
Status |
X.521 (10/19) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
In force
|
X.521 (2019) Amendment 1 (10/24) |
To be published
|
In force
|
|
Superseded and Withdrawn components |
Number
|
Title |
Status |
X.521 (11/88) |
The Directory - Selected object classes
|
Superseded
|
X.521 (11/93) |
Information technology - Open Systems Interconnection - The directory: Selected object classes
|
Superseded
|
X.521 (08/97) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|
X.521 Amendment 1 (03/00) |
Enhancements for the support of ITU-T Recommendation F.510, and for certificate extensions
Never published, consolidated in ITU-T X.521 (02/2001). Only the electronic prepublished version is available on ITU Website
|
Superseded
|
X.521 (1997) Technical Cor. 1 (02/01) |
|
Superseded
|
X.521 (02/01) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|
X.521 (08/05) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|
X.521 (2005) Corrigendum 1 (04/12) |
|
Superseded
|
X.521 (11/08) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|
X.521 (2008) Corrigendum 1 (04/12) |
|
Superseded
|
X.521 (10/12) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|
X.521 (10/16) |
Information technology - Open Systems Interconnection - The Directory: Selected object classes
|
Superseded
|