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ITU-T X.680 (02/2021)

信息技术 – 抽象语法记法一（ASN.1）：基本记法规范
ITU-T X.680建议书\| ISO/IEC 8824-1国际标准介绍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为参考这些类型的标识法以及这些类型的数值制定了规范。ASN.1表示法可在需要定义信息抽象语句时使用，对信息传输的编码方式没有任何限制。

Citation:	https://handle.itu.int/11.1002/1000/14468
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:	2021-02-13
Identical standard:	ISO/IEC 8824-1 (Common)
Approval process:	AAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 17
Further details:	Patent statement(s) Development history

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5.4	X.680 (2015) Amd. 1 (05/2018)	Superseded	here	-	here
5.3	X.680 (2015) Cor. 3 (05/2018)	Superseded	here	here	here
5.2	X.680 (2015) Cor. 2 (10/2017)	Superseded	here	-	here
5.1	X.680 (2015) Cor. 1 (05/2017)	Superseded	here	-	here
5	X.680 (08/2015)	Superseded	here	here	here
4.2	X.680 (2008) Cor. 2 (03/2014)	Superseded	here	-	here
4.1	X.680 (2008) Cor. 1 (10/2011)	Superseded	-	-	here
4	X.680 (11/2008)	Superseded	here	here	here
3.5	X.680 (2002) Amd. 4 (05/2007)	Superseded	here	here	here
3.4	X.680 (2002) Amd. 3 (06/2006)	Superseded	here	here	here
3.3	X.680 (2002) Technical Cor. 1 (05/2005)	Superseded	here	-	here
3.2	X.680 (2002) Amd. 2 (08/2004)	Superseded	here	here	here
3.1	X.680 (2002) Amd. 1 (10/2003)	Superseded	here	here	here
3	X.680 (07/2002)	Superseded	-	-	here
2.8	X.680 (1997) Amd. 4 (10/2001)	Superseded	here	-	here
2.7	X.680 (1997) Amd. 3 (10/2001)	Superseded	here	-	here
2.6	X.680 (1997) Technical Cor. 4 (03/2001)	Superseded	here	here	here
2.5	X.680 (1997) Technical Cor. 3 (02/2001)	Superseded	here	here	here
2.4	X.680 (1997) Technical Cor. 2 (03/2000)	Superseded	-	here	here
2.3	X.680 (1997) Amd. 2 (06/1999)	Superseded	here	here	here
2.2	X.680 (1997) Amd. 1 (06/1999)	Superseded	here	here	here
2.1	X.680 (1997) Technical Cor. 1 (06/1999)	Superseded	here	here	here
2	X.680 (12/1997)	Superseded	here	here	here
1.5	X.680 (1994) Amd. 2 (12/1997)	Superseded	-	-	here
1.4	X.680 (1994) Amd. 1/Technical Cor. 1 (12/1997)	Superseded	-	-	here
1.3	X.680 (1994) Technical Cor. 2 (12/1997)	Superseded	-	-	here
1.2	X.680 (1994) Technical Cor. 1 (11/1995)	Superseded	-	-	here
1.1	X.680 (1994) Amd. 1 (04/1995)	Superseded	-	-	here
1	X.680 (07/1994)	Superseded	-	-	here

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 (02/2021)