The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments and errata) applies.
OPC 10000-1, OPC Unified Architecture - Part 1: Overview and Concepts
http://www.opcfoundation.org/UA/Part1/
OPC 10000-2, OPC Unified Architecture - Part 2: Security Model
http://www.opcfoundation.org/UA/Part2/
OPC 10000-3, OPC Unified Architecture - Part 3: Address Space Model
http://www.opcfoundation.org/UA/Part3/
OPC 10000-4, OPC Unified Architecture - Part 4: Services
http://www.opcfoundation.org/UA/Part4/
OPC 10000-5, OPC Unified Architecture - Part 5: Information Model
http://www.opcfoundation.org/UA/Part5/
OPC 10000-6, OPC Unified Architecture - Part 6: Mappings
http://www.opcfoundation.org/UA/Part6/
OPC 10000-7, OPC Unified Architecture - Part 7: Profiles
http://www.opcfoundation.org/UA/Part7/
OPC 10000-9, OPC Unified Architecture - Part 9: Alarms and Conditions
http://www.opcfoundation.org/UA/Part9/
OPC 10000-12, OPC Unified Architecture - Part 12: Discovery and Global Services
http://www.opcfoundation.org/UA/Part12/
OPC 10000-14, OPC UA Specification: Part 14 - PubSub
http://www.opcfoundation.org/UA/Part14/
OPC 10000-22, OPC UA Specification: Part 22 - Base Network Model
http://www.opcfoundation.org/UA/Part22/
OPC 10000-100, OPC UA Specification: Part 100 - Devices
http://www.opcfoundation.org/UA/Part100/
ISO/IEC 11889, Information technology — Trusted platform module library
https://www.iso.org/standard/66510.html
802.1AR, Secure Device Identity
https://1.ieee802.org/security/802-1ar/
RFC 3161, Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP)
https://tools.ietf.org/html/rfc3161
RFC 5280, Internet X.509 Public Key Infrastructure Certificate
https://tools.ietf.org/html/rfc5280
RFC 7515, JSON Web Signature (JWS)
https://tools.ietf.org/html/rfc7515
RFC 7518, JSON Web Algorithms (JWA)
https://tools.ietf.org/html/rfc7518
RFC 2045, Multipurpose Internet Mail Extensions (MIME) Part One
https://tools.ietf.org/html/rfc2045
RFC 4648, The Base16, Base32, and Base64 Data Encodings
https://tools.ietf.org/html/rfc4648
DIN 91406, Automatic identification of physical objects and information on physical objects in IT systems