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

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 1 of GB/T 16262 "Abstract Syntax Notation for Information Technology One (ASN.1)". GB/T 16262 has been published.

The following 4 parts.

--- Part 1: Basic notation specification;

--- Part 2: Information object specifications;

--- Part 3: Constraint specifications;

--- Part 4: Parameterization of the ASN.1 specification.

This document replaces GB/T 16262.1-2006 "Information technology Abstract syntax notation one (ASN.1) Part 1: Basic notation rules Compared with GB/T 16262.1-2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Added "Encoding Instructions", "Notation of OID Internationalized Resource Identifier Types", "Relative OID Internationalized Resource Identifier Types" Notation" "Time Type" "Encoding Control Part" "Defined Time Type" "Encoding Reference" (see Chapter 9, Chapter 34, Chapter 35, Chapter 38, Chapter 54, Appendix B, Appendix E);

b) Added "Simple string term", "Time value string", "XML time value string term", "Attribute and name setting term" "Encoding reference" "Integer value Unicode label" "Non-integer value Unicode label" "XML Boolean extended true term" "XML ASN.1 terms such as "XML real non-numeric term" and "XML real infinity term" (see Chapter 12);

c) Added the allocation of general category marks (see Table 1 of 8.4), the ASN.1 character "non-line break character" (see Table 2 of 11.1), and the "blank "character representation of" (see 12.1.6), "characters of xmlasn1typename" (see Table 4 of 12.36.2), "reserved words" (see 12.38), "Notation of prefix types" (see 31.1 and 31.3);

d) Added "Named Characters, Sets, and Attribute Class Sets" (see 42.1.5 and 42.1.6), "Attribute Sets" in "Subtype Elements" "Time length range", "Time point range" and "Repetition range" (see 51.10, 51.11, 51.12 and 51.13);

e) Changed the production of "ModuleDefinition" (see 13.1, 12.1 of the 2006 edition), the notation of "BuiltinType" and "Inherent Type" notation (see 17.2, 16.2 of the 2006 edition), "BuiltinValue" notation (see 17.9, 16.9 of the 2006 edition), "XM-LBuiltinValue" notation (see 17.10, 16.10 of the 2006 edition), "XMLBooleanValue" notation (see 18.3, 17.3 of the 2006 edition), "XMLIntegerValue" notation (see 19.9, 18.9 of the 2006 edition), "XMLEnumeratedValue" notation (see 20.8, 19.8 of the 2006 edition), "RealValue" and "XMLRealValue" notation (see 21.6, 20.6), "XMLBitStringValue" notation (see 22.9, 2006 edition 21.9), "XMLSequenceOfValue" notation (see 26.3, 2006 edition 25.3), "XMLSetOfValue" notation (see 28.3, 2006 edition 27.3), "Named-Type" notation (see 31.2.1, 30.1 of the 2006 edition), "SubtypeElements" notation (see 51.1, 47.1);

f) Changed the chapter title of "Named characters and sets defined in GB/T 13000.1" to "Named characters, sets and attribute category sets" (see Chapter 42, Chapter 38 of the 2006 edition), and relevant provisions on "universal time" (see Chapter 46, Chapter 42 of the 2006 edition);

Changed Appendix C "Assigned Object Identifier Values" to Appendix D "Assigned Object Identifiers and OID Internationalized Resource Identifiers" Value", and made appropriate additions to the content (see Appendix D, Appendix C of the 2006 edition);

g) The relevant provisions on "the normal order of characters" have been deleted (see 39.5 of the 2006 edition).

This document is equivalent to ISO/IEC 8824-1:2021 "Abstract Syntax Notation for Information Technology One (ASN.1) Part 1: Basic Notation Legal Norms".

Introduction

GB/T 16262 aims to standardize abstract syntax notation. The compilation of GB/T 16262 is based on ISO/IEC 8824.According to ISO/IEC 8824, GB/T 16262 is planned to consist of 4 parts.

--- Part 1: Basic notation specification. The purpose is to define data types, values and constraints on data types.

--- Part 2: Information object specifications. The purpose is to provide information object categories, information objects and information object sets.

Memorization method.

--- Part 3: Constraint specification. The purpose is to provide a notation for specifying user-defined constraints, table constraints and content constraints.

--- Part 4: Parameterization of ASN.1 specifications. The purpose is to define the parameterization notation of ASN.1 specifications.

Information technology Abstract Syntax Notation One (ASN.1) Part 1: Basic notation specifications

1 Scope

This document provides a standard notation called Abstract Syntax Notation One (ASN.1) for defining data types, values, and data classes.

Type constraints.

This document.

---Defines some simple types and their tags, and also specifies the notation for referencing these types and specifying the values of these types;

---Defines a mechanism for constructing new types from multiple basic types, and also specifies how to define these types and assign tags and rules to them Notation for values of these types;

---Defines the character set used within ASN.1 (by reference to other standards).

ASN.1 can be used when it is necessary to define the abstract syntax of information.

ASN.1 notation is referenced by other standards that define encoding rules for ASN.1 types.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

Note. This document is based on GB/T 13000-2010 and Unicode Standard Version 3.2.0..2002.This document cannot be applied to updated versions of these two standards.

GB/T 2311-2000 Information technology character code structure and extension technology (ISO/IEC 2022:1994, IDT) GB/T 7408.1-2023 Date and time information exchange representation Part 1: Basic principles (ISO 8601-1:2019, IDT) GB/T 13000-2010 Information technology Universal multi-octet coded character set (UCS) (ISO/IEC 10646:2003, IDT) GB/T 16262.2-2025 Information technology Abstract syntax notation 1 (ASN.1) Part 2: Information object specification (ISO/IEC 8824-2:2021,IDT) GB/T 16262.3-2025 Information technology Abstract syntax notation 1 (ASN.1) Part 3: Constraint specification (ISO/IEC 8824-3:2021,IDT) GB/T 16262.4-2025 Information technology Abstract Syntax Notation One (ASN.1) Part 4: Parameterization of ASN.1 specifications (ISO/IEC 8824-4:2021, IDT) Note. GB/T 16263.1-2006 Information technology ASN.1 encoding rules Part 1: Basic encoding rules (BER), regular encoding rules (CER) and Degenerate Encoding Rules (DER) Specification (ISO/IEC 8825-1:2002, IDT) Note. GB/T 16263.2-2006 Information technology ASN.1 encoding rules Part 2: Specification of the Reduced Encoding Rules (PER) (ISO/IEC 8825-2.

2002, IDT)

(XER)