| Time type support |
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This amendment specifies the PER encodings for the TIME type, for the useful time types (DATE, TIME-OF-DAY, DATE-TIME, and DURATION) and for the defined time types specified in the ASN.1 module DefinedTimeTypes of ITU-T Rec. X.680/Amd.3 | ISO/IEC 8824-1/Amd.3, Annex A bis.Property settings for the abstract values of the useful and defined types are specified in ITU-T Rec. X.680/Amd.3 | ISO/IEC 8824-1/Amd.3, Annex A bis. Property settings for the additional time types are defined by an application designer using the property setting subtype notation (which is PER visible). These property settings are used to determine optimal PER encodings. In particular, a DATE will normally encode into 15 bits, a TIME-OF-DAY into 17 bits, a DATE-TIME into 32 bits (four octets) and a DURATION will frequently encode into 16 bits or less (two octets). |
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| Citation: |
https://handle.itu.int/11.1002/1000/8839 |
| Series title: |
X series: Data networks, open system communications and security
X.600-X.699: OSI networking and system aspects
X.680-X.699: Abstract Syntax Notation One (ASN.1) |
| Approval date: |
2006-06-13 |
| Identical standard: | ISO/IEC 8825-2:2002/Amd2:2007 (Common) |
| Approval process: | AAP |
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Status: |
Superseded |
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Maintenance responsibility: |
ITU-T Study Group 17 |
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Further details: |
Patent statement(s)
Development history
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| Title |
Approved on |
Download |
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Guidelines for identity-based cryptosystems used for cross-domain secure communications
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2023
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here
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Overview of hybrid approaches for key exchange with quantum key distribution
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2022
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here
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Guidelines for security management of using artificial intelligence technology
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2022
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here
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Successful use of security standards (2nd edition)
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2020
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here
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Description of the incubation mechanism and ways to improve it
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2020
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here
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Strategic approaches to the transformation of security studies
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2020
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here
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