GB/T 16262.1-2025 Information technology—Abstract Syntax Notation One(ASN.1)—Part 1:Specification of basic notation

Scope

This document provides a standard notation called Abstract Syntax Notation One (ASN.1), which is used to define data types, values, and constraints on data types.
This document:
— Defines some simple types and their tags, and also specifies the notation for referencing these types and defining their values;
— Defines a mechanism for constructing new types from multiple base types, and also specifies the notation for defining these types, assigning tags to them, and defining their values;
— Defines the character sets used within ASN.1 (by referencing other standards).
ASN.1 can be used when defining the abstract syntax of information.
The ASN.1 notation is referenced by other standards that define ASN.1 type encoding rules.

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