OSI – OPEN SYSTEMS INTERCONNECTION
The OSI standards are published by the International Telecommunication Union and provide commercial standards on which Military Messaging Handling Systems (MMHS) are built.
The ITU maintains a full listing of the X Series. A number of their Information Technology standards are applicable to Nexor.
|ASN.1: Abstract Syntax Notation One||X.680||Specification of basic notation|
|X.681||Information object specification|
|X.690||ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER)|
|X.693||ASN.1 encoding rules : XML Encoding Rules (XER)|
|Security techniques||X.841||Security information objects for access control|
|X.400: Message Handling Systems (MHS)||X.402||Overall architecture|
|X.411||Message Transfer System: Abstract Service Definition and Procedures|
|X.413||Message store – Abstract service definition (P7)|
|X.420||Interpersonal Messaging System (P2, P22)|
|X.500: Open Systems Interconnection – The Directory||X.500||Overview of concepts, models and services|
|X.509||Public-key and attribute certificate frameworks|
|X.511||Abstract service definition|
|X.518||Procedures for distributed operation|
|X.520||Selected attribute types|
|X.521||Selected object classes|
|X.530||Use of systems management for administration of the Directory|
|There is also a website for the X.500 Directory standard: X500STANDARD.COM|
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