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 10000-14, OPC Unified Architecture - Part 14: PubSub
http://www.opcfoundation.org/UA/Part14/
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://www.ietf.org/rfc/rfc8446.txt
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://www.ietf.org/rfc/rfc7230.txt
http://www.ietf.org/rfc/rfc2818.txt
Base64, The Base16, Base32, and Base64 Data Encodings
https://www.ietf.org/rfc/rfc4648.txt
X.690, 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
X.200, 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 Std 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
https://www.ietf.org/rfc/rfc2104.txt
PKCS #1, RSA Cryptography Specifications Version 2.2
https://www.ietf.org/rfc/rfc8017.txt
PKCS #12, Personal Information Exchange Syntax v1.1
https://www.ietf.org/rfc/rfc7292.txt
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://www.ietf.org/rfc/rfc3629.txt
IETF RFC 5280, Internet X.509 Public Key Infrastructure Certificate
and Certificate Revocation List (CRL) Profile
https://www.ietf.org/rfc/rfc5280.txt
IETF RFC 6818, Updates to the Internet X.509 Public Key Infrastructure
Certificate and Certificate Revocation List (CRL) Profile
https://www.ietf.org/rfc/rfc6818.txt
IETF RFC 4514, LDAP: String Representation of Distinguished Names
https://www.ietf.org/rfc/rfc4514.txt
NTP, Network Time Protocol Version 4: Protocol and Algorithms Specification
https://www.ietf.org/rfc/rfc5905.txt
IETF RFC 3986, Uniform Resource Identifier (URI): Generic Syntax
https://www.ietf.org/rfc/rfc3986.txt
IETF RFC 8141, Uniform Resource Names (URNs)
https://www.ietf.org/rfc/rfc8141.txt
IETF RFC 6455, The WebSocket Protocol
https://www.ietf.org/rfc/rfc6455.txt
IETF RFC 8259, The JavaScript Object Notation (JSON) Data Interchange Format
https://www.ietf.org/rfc/rfc8259.txt
IETF RFC 7519, JSON Web Token (JWT)
https://www.ietf.org/rfc/rfc7519.txt
IETF RFC 7523, JSON Web Token (JWT) Profile for OAuth 2.0 Client Authentication and
Authorization Grants
https://www.ietf.org/rfc/rfc7523.txt
IETF RFC 8705, OAuth 2.0 Mutual-TLS Client Authentication and Certificate-Bound Access Tokens
https://www.ietf.org/rfc/rfc8705.txt
IETF RFC 6749, The OAuth 2.0 Authorization Framework
https://www.ietf.org/rfc/rfc6749.txt
OpenID-Core, OpenID Connect Core 1.0
https://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
IETF RFC 6960, X.509 Internet Public Key Infrastructure – Online Certificate Status Protocol – OCSP
https://www.ietf.org/rfc/rfc6960.txt
IETF RFC 5869, HMAC-based Extract-and-Expand Key Derivation Function (HKDF)
https://www.ietf.org/rfc/rfc5869.txt
IETF RFC 8422, Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS) Versions 1.2 and Earlier
https://www.ietf.org/rfc/rfc8422.txt
IETF RFC 6750, The OAuth 2.0 Authorization Framework: Bearer Token Usage
https://www.ietf.org/rfc/rfc6750.txt
ISO 8601-1, Date and time - Representations for information interchange - Part 1: Basic rules
https://www.iso.org/standard/70907.html
IETF RFC 5234, Augmented BNF for Syntax Specifications: ABNF
https://www.ietf.org/rfc/rfc5234.txt
IETF RFC 4151, The 'tag' URI Scheme
https://www.ietf.org/rfc/rfc4151.txt
SemVer, Semantic Versioning 2.0.0
https://semver.org/spec/v2.0.0.html
OpenAPI, OpenAPI Specification v3.0
https://spec.openapis.org/oas/v3.0.4.html
JSON Schema, JSON Schema 2020-12
https://json-schema.org/specification
IETF RFC 1952: GZIP file format specification version 4.3
https://www.ietf.org/rfc/rfc1952.txt
AES-CTR, NIST SP 800-38A: Recommendation for Block Cipher Modes of Operation
https://csrc.nist.gov/pubs/sp/800/38/a/final
IETF RFC 7919, Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security (TLS)
https://www.ietf.org/rfc/rfc7919.txt
IETF RFC 7748, Elliptic Curves for Security
https://www.ietf.org/rfc/rfc7748.txt