Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ANSI INCITS/ISO/IEC 8825-2:2004
• Năm ban hành / Publication date: 2004
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Information technology - ASN - 1 encoding rules: Specification of Packed Encoding Rules (PER)
• Thay thế cho / Replace: ANSI INCITS/ISO/IEC 8825-2:2000
• Số trang / Page: 54

Phạm vi áp dụng / Scope of standard

This Recommendation | International Standard specifies a set of
Packed Encoding Rules that may be used to derive a transfer syntax
for values of types defined in ITU-T Rec. X.680 | ISO/IEC 8824-1.
These Packed Encoding Rules are also to be applied for decoding
such a transfer syntax in order to identify the data values being
transferred.

The encoding rules specified in this Recommendation |
International Standard:

- are used at the time of communication;

- are intended for use in circumstances where minimizing the
size of the representation of values is the major concern in the
choice of encoding rules;

- allow the extension of an abstract syntax by addition of extra
values, preserving the encodings of the existing values, for all
forms of extension described in ITU-T Rec. X.680 | ISO/IEC
8824-1.