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) 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 10000-18, OPC Unified Architecture - Part 18: Role-Based Security
http://www.opcfoundation.org/UA/Part18/
OPC 10000-21, OPC Unified Architecture - Part 21: Device Onboarding
http://www.opcfoundation.org/UA/Part21/
XML Schema Part 2: XML Schema Part 2: Datatypes
http://www.w3.org/TR/xmlschema-2/
SOAP Part 1, SOAP Version 1.2 Part 1: Messaging Framework
http://www.w3.org/TR/soap12-part1/
WS Addressing, Web Services Addressing (WS-Addressing)
http://www.w3.org/Submission/ws-addressing/
TLS, RFC 8446 – The Transport Layer Security (TLS) Protocol Version 1.3
https://datatracker.ietf.org/doc/html/rfc8446
X.509 v3, ISO/IEC 9594-8 (ITU-T Rec. X.509), Information technology – Open Systems
Interconnection – The Directory: Public-key and attribute certificate frameworks
https://www.iso.org/standard/72557.html
HTTP, Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing
https://datatracker.ietf.org/doc/html/rfc7230
http://www.ietf.org/rfc/rfc2818.txt
Base64, The Base16, Base32, and Base64 Data Encodings
https://datatracker.ietf.org/doc/html/rfc4648
X690, ISO/IEC 8825-1 (ITU-T Rec. X.690), Information technology – ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER)
https://www.iso.org/standard/35688.html
X200, ISO/IEC 7498-1 (ITU-T Rec. X.200), Information technology – Open Systems Interconnection – Basic Reference Model: The Basic Model
https://www.iso.org/standard/20269.html
IEEE 754, 60559-2020 - ISO/IEC/IEEE International Standard - Standard for Floating-Point Arithmetic
https://ieeexplore.ieee.org/document/9091348
HMAC, Keyed-Hashing for Message Authentication
http://www.ietf.org/rfc/rfc2104.txt
PKCS #1, RSA Cryptography Specifications Version 2.2
https://datatracker.ietf.org/doc/html/rfc8017
PKCS #12, Personal Information Exchange Syntax v1.1
https://datatracker.ietf.org/doc/html/rfc7292
FIPS 180-4, Secure Hash Standard (SHS)
https://csrc.nist.gov/publications/detail/fips/180/4/final
FIPS 197, Advanced Encryption Standard (AES)
https://www.nist.gov/publications/advanced-encryption-standard-aes
UTF-8, UTF-8, a transformation format of ISO 10646
https://datatracker.ietf.org/doc/html/rfc3629
RFC 5280, Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile
https://datatracker.ietf.org/doc/html/rfc5280
RFC 4514, LDAP: String Representation of Distinguished Names
https://datatracker.ietf.org/doc/html/rfc4514
NTP, Network Time Protocol Version 4: Protocol and Algorithms Specification
https://datatracker.ietf.org/doc/html/rfc5905
RFC 3986, Uniform Resource Identifier (URI): Generic Syntax
https://datatracker.ietf.org/doc/html/rfc3986
RFC 8141, Uniform Resource Names (URNs)
https://datatracker.ietf.org/doc/html/rfc8141
RFC 6455, The WebSocket Protocol
https://datatracker.ietf.org/doc/html/rfc6455
RFC 8259, The JavaScript Object Notation (JSON) Data Interchange Format
https://datatracker.ietf.org/doc/html/rfc8259
RFC 7523, JSON Web Token (JWT) Profile for OAuth 2.0 Client Authentication and
Authorization Grants
https://datatracker.ietf.org/doc/html/rfc7523
RFC 5392, The OAuth 2.0 Authorization Framework
https://datatracker.ietf.org/doc/html/rfc6749
OpenID-Core, OpenID Connect Core 1.0
http://openid.net/specs/openid-connect-core-1_0.html
OpenID-Discovery, OpenID Connect Discovery 1.0
https://openid.net/specs/openid-connect-discovery-1_0.html
RFC 6960, X.509 Internet Public Key Infrastructure – Online Certificate Status Protocol – OCSP
https://datatracker.ietf.org/doc/html/rfc6960
RFC 5869, HMAC-based Extract-and-Expand Key Derivation Function (HKDF)
https://datatracker.ietf.org/doc/html/rfc5869
RFC 8422, Elliptic Curve Cryptography (ECC) Cipher Suites
https://datatracker.ietf.org/doc/html/rfc8422
RFC 6750, The OAuth 2.0 Authorization Framework: Bearer Token Usage
https://datatracker.ietf.org/doc/html/rfc6750
ISO 8601-1, Date and time - Representations for information interchange - Part 1: Basic rules
https://www.iso.org/standard/70907.html
RFC 5234, Augmented BNF for Syntax Specifications: ABNF
https://datatracker.ietf.org/doc/html/rfc5234
RFC 4151, The 'tag' URI Scheme
https://datatracker.ietf.org/doc/html/rfc4151
SemVer, Semantic Versioning 2.0.0
https://semver.org/spec/v2.0.0.html