标准摘要
[中文适用范围]： 本建议书 | 国际标准指定了一组基本八位字节编码规则（BASIC-OER），可用于派生在 ITU-T X.680 建议书 | ISO/IEC 8824-1、ITU-T X.681 建议书 | ISO/IEC 8824-2、ITU-T X.682 建议书 | ISO/IEC 8824-3、ITU-T X.683 建议书 | ISO/IEC 8824-4 中定义类型的值的传输语法。本建议书 | 国际标准还指定了一组规范八位字节编码规则（CANONICAL-OER），它对基本八位字节编码规则提供约束并为任何给定的 ASN.1 值生成唯一的编码。这些编码规则的规范隐含地表明它们也将用于解码。本建议书 | 国际标准中指定的编码规则：2 – 在通信时使用； – 旨在用于在选择编码规则时主要考虑编码/解码速度的情况； – 允许通过添加建议书 ITU-T X.680 | ISO/IEC 8824-1 中描述的所有形式的可扩展性的额外值来扩展抽象语法。 [外文原描述]： This document specifies a set of Basic Octet Encoding Rules (BASIC-OER) that may be used to derive a transfer syntax for values of the types defined in Rec. ITU-T X.680 | ISO/IEC 8824-1, Rec. ITU‑T X.681 | ISO/IEC 8824-2, Rec. ITU-T X.682 | ISO/IEC 8824-3, Rec. ITU-T X.683 | ISO/IEC 8824-4. This document also specifies a set of Canonical Octet Encoding Rules (CANONICAL-OER) which provides constraints on the Basic Octet Encoding Rules and produces a unique encoding for any given ASN.1 value. It is implicit in the specification of these encoding rules that they are also to be used for decoding. The encoding rules specified in this document: – are used at the time of communication; – are intended for use in circumstances where encoding/decoding speed is the major concern in the choice of encoding rules; – allow the extension of an abstract syntax by addition of extra values for all forms of extensibility described in Rec. ITU-T X.680 | ISO/IEC 8824‑1.
英文名称Information technology - ASN.1 encoding rules - Part 7: Specification of Octet Encoding Rules (OER)