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ITU-T X.680 (11/2008)

信息技术 – 抽象语法记法一（ASN.1）：基本记法规范
该建议书 \| 国际标准提供了被称为抽象语句表示法第一版（ASN.1）的表示法，用来定义信息数据的句法。建议书定义了若干简单数据类型并对参考这些类型的标识法以及这些类型的数值做出规范。ASN.1表示法可在需要定义信息抽象语句使用，对信息传输的编码方式没有任何限制。

Citation:	https://handle.itu.int/11.1002/1000/9604
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:	2008-11-13
Identical standard:	ISO/IEC 8824-1:2008 (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Status:	Superseded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5.4	X.680 (2015) Amd. 1 (05/2018)	Superseded	here	-	here
5.3	X.680 (2015) Cor. 3 (05/2018)	Superseded	here	here	here
5.2	X.680 (2015) Cor. 2 (10/2017)	Superseded	here	-	here
5.1	X.680 (2015) Cor. 1 (05/2017)	Superseded	here	-	here
5	X.680 (08/2015)	Superseded	here	here	here
4.2	X.680 (2008) Cor. 2 (03/2014)	Superseded	here	-	here
4.1	X.680 (2008) Cor. 1 (10/2011)	Superseded	-	-	here
4	X.680 (11/2008)	Superseded	here	here	here
3.5	X.680 (2002) Amd. 4 (05/2007)	Superseded	here	here	here
3.4	X.680 (2002) Amd. 3 (06/2006)	Superseded	here	here	here
3.3	X.680 (2002) Technical Cor. 1 (05/2005)	Superseded	here	-	here
3.2	X.680 (2002) Amd. 2 (08/2004)	Superseded	here	here	here
3.1	X.680 (2002) Amd. 1 (10/2003)	Superseded	here	here	here
3	X.680 (07/2002)	Superseded	-	-	here
2.8	X.680 (1997) Amd. 4 (10/2001)	Superseded	here	-	here
2.7	X.680 (1997) Amd. 3 (10/2001)	Superseded	here	-	here
2.6	X.680 (1997) Technical Cor. 4 (03/2001)	Superseded	here	here	here
2.5	X.680 (1997) Technical Cor. 3 (02/2001)	Superseded	here	here	here
2.4	X.680 (1997) Technical Cor. 2 (03/2000)	Superseded	-	here	here
2.3	X.680 (1997) Amd. 2 (06/1999)	Superseded	here	here	here
2.2	X.680 (1997) Amd. 1 (06/1999)	Superseded	here	here	here
2.1	X.680 (1997) Technical Cor. 1 (06/1999)	Superseded	here	here	here
2	X.680 (12/1997)	Superseded	here	here	here
1.5	X.680 (1994) Amd. 2 (12/1997)	Superseded	-	-	here
1.4	X.680 (1994) Amd. 1/Technical Cor. 1 (12/1997)	Superseded	-	-	here
1.3	X.680 (1994) Technical Cor. 2 (12/1997)	Superseded	-	-	here
1.2	X.680 (1994) Technical Cor. 1 (11/1995)	Superseded	-	-	here
1.1	X.680 (1994) Amd. 1 (04/1995)	Superseded	-	-	here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 (2008-11)

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-Object-Identifier-Module	2.1.0.0.1	Modified by Cor. 2	2014-04-03
ASN.1	DefinedTimeTypes	2.1.0.0.3		2009-07-31

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 Recommendations

ITU-T X.680 (11/2008)