ITU-T Rec. X.691 (07/2002) Information technology - ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
Summary
Source
FOREWORD
CONTENTS
Introduction
1 Scope
2 Normative references
    2.1 Identical Recommendations | International Standards
    2.2 Paired Recommendations | International Standards equivalent in technical content
    2.3 Additional references
3 Definitions
    3.1 Specification of Basic Notation
    3.2 Information Object Specification
    3.3 Constraint Specification
    3.4 Parameterization of ASN.1 Specification
    3.5 Basic Encoding Rules
    3.6 Additional definitions
4 Abbreviations
5 Notation
6 Convention
7 Encoding rules defined in this Recommendation | International Standard
8 Conformance
9 The approach to encoding used for PER
    9.1 Use of the type notation
    9.2 Use of tags to provide a canonical order
    9.3 PER-visible constraints
    9.4 Type and value model used for encoding
    9.5 Structure of an encoding
    9.6 Types to be encoded
10 Encoding procedures
    10.1 Production of the complete encoding
    10.2 Open type fields
    10.3 Encoding as a non-negative-binary-integer
    10.4 Encoding as a 2's-complement-binary-integer
    10.5 Encoding of a constrained whole number
    10.6 Encoding of a normally small non-negative whole number
    10.7 Encoding of a semi-constrained whole number
    10.8 Encoding of an unconstrained whole number
    10.9 General rules for encoding a length determinant
11 Encoding the boolean type
12 Encoding the integer type
13 Encoding the enumerated type
14 Encoding the real type
15 Encoding the bitstring type
16 Encoding the octetstring type
17 Encoding the null type
18 Encoding the sequence type
19 Encoding the sequence-of type
20 Encoding the set type
21 Encoding the set-of type
22 Encoding the choice type
23 Encoding the object identifier type
24 Encoding the relative object identifier type
25 Encoding the embedded-pdv type
26 Encoding of a value of the external type
27 Encoding the restricted character string types
28 Encoding the unrestricted character string type
29 Object identifiers for transfer syntaxes
Annex A - Example of encodings
A.1 Record that does not use subtype constraints
A.1.1 ASN.1 description of the record structure
A.1.2 ASN.1 description of a record value
A.1.3 ALIGNED PER representation of this record value
A.1.4 UNALIGNED PER representation of this record value
A.2 Record that uses subtype constraints
A.2.1 ASN.1 description of the record structure
A.2.2 ASN.1 description of a record value
A.2.3 ALIGNED PER representation of this record value
A.2.4 UNALIGNED PER representation of this record value
A.3 Record that uses extension markers
A.3.1 ASN.1 description of the record structure
A.3.2 ASN.1 description of a record value
A.3.3 ALIGNED PER representation of this record value
A.3.4 UNALIGNED PER representation of this record value
A.4 Record that uses extension addition groups
A.4.1 ASN.1 description of the record structure
A.4.2 ASN.1 description of a record value
A.4.3 ALIGNED PER representation of this record value
A.4.4 UNALIGNED PER representation of this record value
Annex B - Combining PER-visible and non-PER-visible constraints
B.1 General
B.2 Extensibility and visibility of constraints in PER
B.2.1 General
B.2.2 PER-visibility of constraints
B.2.3 Effective constraints
B.3 Examples
Annex C - Support for the PER algorithms
Annex D - Support for the ASN.1 rules of extensibility
Annex E - Tutorial annex on concatenation of PER encodings
Annex F - Assignment of object identifier values