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ITU X.667:2008

ITU X.667:2008 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 Describes specifies procedures for the generation and registration of UUIDs and for their use in the International Object Identifier tree under the Joint UUID arc.

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Table of Contents

1Scope
2NormativeReferences
2.1IdenticalRecommendations/InternationalStandards
2.2Othernormativereferences
3TermsandDefinitions
3.1ASN.1notation
3.2Registrationauthorities
3.3Networkterms
3.4Additionaldefinitions
4Abbreviations
5Notation
6UUIDstructureandrepresentation
6.1UUIDfieldstructure
6.2Binaryrepresentation
6.3Representationasasingleintegervalue
6.4Hexadecimalrepresentation
6.5Formalsyntaxofthehexadecimalrepresentation
7UseofaUUIDastheprimaryintegervalueandUnicode
labelofaJointUUIDarc
8UseofaUUIDtoformaURN
9RulesforcomparisonandorderingofUUIDs
10Validation
11Variantbits
12UseofUUIDfieldsandtransmissionbyteorder
12.1General
12.2Version
12.3Time
12.4ClockSequence
12.5Node
13Settingthefieldsofatime-basedUUID
14Settingthefieldsofaname-basedUUID
15Settingthefieldsofarandom-number-basedUUID
16RegistrationofUUIDsandtheiruseintheInternational
ObjectIdentifiertree
16.1TheInternationalObjectIdentifiertree
16.2Appointmentofregistrationauthorities
16.3Fees
16.4Registrationprocedures
16.5MaintenanceofaWeb-basedregister
AnnexA-Algorithmsfortheefficientgenerationof
time-basedUUIDs
A.1Basicalgorithm
A.2Readingstablestorage
A.3Systemclockresolution
A.4Writingstablestorage
A.5Sharingstateacrossprocesses
AnnexB-Propertiesofname-basedUUIDs
AnnexC-Generationofrandomnumbersinasystem
AnnexD-Sampleimplementation
D.1Filesprovided
D.2Thecopyrt.hfile
D.3Theuuid.hfile
D.4Theuuid.cfile
D.5Thesysdep.hfile
D.6Thesysdep.cfile
D.7Theutest.cfile
D.8Sampleoutputofutest
D.9SomenamespaceIDs
Bibliography

Abstract

Describes specifies procedures for the generation and registration of UUIDs and for their use in the International Object Identifier tree under the Joint UUID arc.

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