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ISO/IEC 8824-1:2021

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

General information
Valid from 30.06.2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
30.06.2021
Main
12.03.2019
Amendment
12.11.2015
Main
This document provides a standard notation called Abstract Syntax Notation One (ASN.1) that is used for the definition of data types, values, and constraints on data types. This document: –      defines a number of simple types, with their tags, and specifies a notation for referencing these types and for specifying values of these types; –      defines mechanisms for constructing new types from more basic types, and specifies a notation for defining such types and assigning them tags, and for specifying values of these types; –      defines character sets (by reference to other Recommendations and/or International Standards) for use within ASN.1. The ASN.1 notation can be applied whenever it is necessary to define the abstract syntax of information. The ASN.1 notation is referenced by other standards which define encoding rules for the ASN.1 types.
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