ISO/IEC 9834-8:2005
Information technology — Open Systems Interconnection — Procedures for the operation of OSI Registration Authorities: Generation and registration of Universally Unique Identifiers (UUIDs) and their use as ASN.1 Object Identifier components — Part 8:
ISO/IEC 9834-8:2005 specifies the format and generation rules that enable users to produce 128-bit identifiers that are either guaranteed or have a high probability of being globally unique.
The UUIDs generated in conformance with ISO/IEC 9834-8:2005 are suitable either for transient use, with generation of a new UUID every 100 nanoseconds, or as persistent identifiers.
ISO/IEC 9834-8:2005 is derived from earlier non-standard specifications of UUIDs and their generation, and is technically identical to those earlier specifications. It specifies the procedures for the operation of a Web-based Registration Authority for UUIDs.
ISO/IEC 9834-8:2005 also specifies and allows the use of UUIDs (registered or not registered) as OID components under the arc {joint-iso-itu-t uuid(25)}. This enables users to generate OIDs without any registration procedures. It also specifies and allows the use of UUIDs (registered or not registered) to form a URN.
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Contents
Foreword
Introduction
1 Scope
2 Normative references
2.1 Identical Recommendations | International Standards
2.2 Other normative references
3 Terms and definitions
3.1 ASN.1 notation
3.2 Registration authorities
3.3 Network terms
3.4 Additional definitions
4 Abbreviations
5 Notation
6 UUID structure and representation
6.1 UUID field structure
6.2 Binary representation
6.3 Representation as a single integer value
6.4 Hexadecimal representation
6.5 Formal syntax of the hexadecimal representation
7 Use of a UUID to form an OID
8 Use of a UUID to form a URN
9 Rules for comparison and ordering of UUIDs
10 Validation
11 The variant bits
12 Use of UUID fields and transmission byte order
12.1 General
12.2 Version
12.3 Time
12.4 Clock sequence
12.5 Node
13 Setting the fields of a time-based UUID
14 Setting the fields of a name-based UUID
15 Setting the fields of a random-number-based UUID
16 Registration of UUIDs and their use as OID components
16.1 The ASN.1 OID tree
16.2 Appointment of registration authorities
16.3 Fees
16.4 Registration procedures
16.4.1 Application for registration of a UUID
16.4.2 Confirmation process
16.4.3 Content of application
16.5 Maintenance of a Web-based register
Annex A – Algorithms for the efficient generation of time-based UUIDs
A.1 Basic algorithm
A.2 Reading stable storage
A.3 System clock resolution
A.4 Writing stable storage
A.5 Sharing state across processes
Annex B – Properties of name-based UUIDs
Annex C – Generation of random numbers in a system
Annex D – Sample implementation
D.1 Files provided
D.2 The copyrt.h file
D.3 The uuid.h file
D.4 The uuid.c file
D.5 The sysdep.h file
D.6 The sysdep.c file
D.7 The utest.c file
D.8 Sample output of utest
D.9 Some name space IDs
BIBLIOGRAPHY
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Contents
Foreword
Introduction
1 Scope
2 Normative references
2.1 Identical Recommendations | International Standards
2.2 Other normative references
3 Terms and definitions
3.1 ASN.1 notation
3.2 Registration authorities
3.3 Network terms
3.4 Additional definitions
4 Abbreviations
5 Notation
6 UUID structure and representation
6.1 UUID field structure
6.2 Binary representation
6.3 Representation as a single integer value
6.4 Hexadecimal representation
6.5 Formal syntax of the hexadecimal representation
7 Use of a UUID to form an OID
8 Use of a UUID to form a URN
9 Rules for comparison and ordering of UUIDs
10 Validation
11 The variant bits
12 Use of UUID fields and transmission byte order
12.1 General
12.2 Version
12.3 Time
12.4 Clock sequence
12.5 Node
13 Setting the fields of a time-based UUID
14 Setting the fields of a name-based UUID
15 Setting the fields of a random-number-based UUID
16 Registration of UUIDs and their use as OID components
16.1 The ASN.1 OID tree
16.2 Appointment of registration authorities
16.3 Fees
16.4 Registration procedures
16.4.1 Application for registration of a UUID
16.4.2 Confirmation process
16.4.3 Content of application
16.5 Maintenance of a Web-based register
Annex A – Algorithms for the efficient generation of time-based UUIDs
A.1 Basic algorithm
A.2 Reading stable storage
A.3 System clock resolution
A.4 Writing stable storage
A.5 Sharing state across processes
Annex B – Properties of name-based UUIDs
Annex C – Generation of random numbers in a system
Annex D – Sample implementation
D.1 Files provided
D.2 The copyrt.h file
D.3 The uuid.h file
D.4 The uuid.c file
D.5 The sysdep.h file
D.6 The sysdep.c file
D.7 The utest.c file
D.8 Sample output of utest
D.9 Some name space IDs
BIBLIOGRAPHY