ITU-T X.691
Information technology – ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
Organization: | ITU-T |
Publication Date: | 1 August 2015 |
Status: | active |
Page Count: | 74 |
scope:
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 Rec. ITU-T 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 Rec. ITU-T X.680 | ISO/IEC 8824-1;
- can be modified in accordance with the provisions of Rec. ITU-T X.695 | ISO/IEC 8825-6.