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ITU-T X.680 (07/2002)

Information technology – Abstract Syntax Notation One (ASN.1): Specification of basic notation

This Recommendation | International Standard provides a notation called Abstract Syntax Notation One (ASN.1) for defining the syntax of information data. It defines a number of simple data types and specifies a notation for referencing these types and for specifying values of these types.
The ASN.1 notations can be applied whenever it is necessary to define the abstract syntax of information without constraining in any way how the information is encoded for transmission.

Citation:	https://handle.itu.int/11.1002/1000/6085
Series title:	X series: Data networks, open system communications and security X.600-X.699: OSI networking and system aspects X.680-X.699: Abstract Syntax Notation One (ASN.1)
Approval date:	2002-07-14
Identical standard:	ISO/IEC 8824-1:2002 (Common)
Approval process:	AAP
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 17
Further details:	Patent statement(s) Development history

EditionsFormal description(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
6	X.680 (02/2021)	In force	here	-	here
5.4	X.680 (2015) Amd. 1 (05/2018)	Superseded	here	-	here
5.3	X.680 (2015) Cor. 3 (05/2018)	Superseded	here	here	here
5.2	X.680 (2015) Cor. 2 (10/2017)	Superseded	here	-	here
5.1	X.680 (2015) Cor. 1 (05/2017)	Superseded	here	-	here
5	X.680 (08/2015)	Superseded	here	here	here
4.2	X.680 (2008) Cor. 2 (03/2014)	Superseded	here	-	here
4.1	X.680 (2008) Cor. 1 (10/2011)	Superseded	-	-	here
4	X.680 (11/2008)	Superseded	here	here	here
3.5	X.680 (2002) Amd. 4 (05/2007)	Superseded	here	here	here
3.4	X.680 (2002) Amd. 3 (06/2006)	Superseded	here	here	here
3.3	X.680 (2002) Technical Cor. 1 (05/2005)	Superseded	here	-	here
3.2	X.680 (2002) Amd. 2 (08/2004)	Superseded	here	here	here
3.1	X.680 (2002) Amd. 1 (10/2003)	Superseded	here	here	here
3	X.680 (07/2002)	Superseded	-	-	here
2.8	X.680 (1997) Amd. 4 (10/2001)	Superseded	here	-	here
2.7	X.680 (1997) Amd. 3 (10/2001)	Superseded	here	-	here
2.6	X.680 (1997) Technical Cor. 4 (03/2001)	Superseded	here	here	here
2.5	X.680 (1997) Technical Cor. 3 (02/2001)	Superseded	here	here	here
2.4	X.680 (1997) Technical Cor. 2 (03/2000)	Superseded	-	here	here
2.3	X.680 (1997) Amd. 2 (06/1999)	Superseded	here	here	here
2.2	X.680 (1997) Amd. 1 (06/1999)	Superseded	here	here	here
2.1	X.680 (1997) Technical Cor. 1 (06/1999)	Superseded	here	here	here
2	X.680 (12/1997)	Superseded	here	here	here
1.5	X.680 (1994) Amd. 2 (12/1997)	Superseded	-	-	here
1.4	X.680 (1994) Amd. 1/Technical Cor. 1 (12/1997)	Superseded	-	-	here
1.3	X.680 (1994) Technical Cor. 2 (12/1997)	Superseded	-	-	here
1.2	X.680 (1994) Technical Cor. 1 (11/1995)	Superseded	-	-	here
1.1	X.680 (1994) Amd. 1 (04/1995)	Superseded	-	-	here
1	X.680 (07/1994)	Superseded	-	-	here

X.680 (2002-07)

Index of all ASN.1 assignments defined in this Recommendation.

Click here to download all the modules of this Recommendation (zipped archive)

Click here to download all the modules needed to compile this Recommendation (zipped archive)

Language	Title	OID	Obs.	Last update
ASN.1	ASN1-CHARACTER-MODULE	2.1.0.0.0
ASN.1	ASN1-Object-Identifier-Module	2.1.0.0.1

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
OID resolution system: Problems, requirements and potential solutions	2020	here

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ITU-T X.680 (07/2002)