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Description of BS EN IEC 62541-7:2020 2020IEC 62541-7:2020 is available as IEC 62541-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62541-7:2020 defines the OPC Unified Architecture (OPC UA)
Profiles. The Profiles in this document are used to segregate
features with regard to testing of OPC UA products and the nature
of the testing (tool based or lab based). This includes the testing
performed by the OPC Foundation provided OPC UA CTT (a self-test
tool) and by the OPC Foundation provided Independent certification
test labs. This could equally as well refer to test tools provided
by another organization or a test lab provided by another
organization. What is important is the concept of automated
tool-based testing versus lab-based testing. The scope of this
standard includes defining functionality that can only be tested in
a lab and defining the grouping of functionality that is to be used
when testing OPC UA products either in a lab or using automated
tools. The definition of actual TestCases is not within the scope
of this document, but the general categories of TestCases are
within the scope of this document. Most OPC UA applications will
conform to several, but not all, of the Profiles. This third
edition cancels and replaces the second edition published in 2015.
This edition constitutes a technical revision. This edition
includes the following significant technical changes with respect
to the previous edition: a) new functional Profiles: • profiles for
global discovery and global certificate management; • profiles for
global KeyCredential management and global access token management;
• facet for durable subscriptions; • standard UA Client Profile; •
profiles for administration of user roles and permissions. b) new
transport Profiles: • HTTPS with JSON encoding; • secure WebSockets
(WSS) with binary or JSON encoding; • reverse connectivity. c) new
security Profiles: • transportSecurity – TLS 1.2 with PFS (with
perfect forward secrecy); • securityPolicy [A] –
Aes128-Sha256-RsaOaep (replaces Base128Rsa15); • securityPolicy –
Aes256-Sha256-RsaPss adds perfect forward secrecy for UA TCP); •
user Token JWT (Jason Web Token). d) deprecated Security Profiles
(due to broken algorithms): • securityPolicy – Basic128Rsa15
(broken algorithm Sha1); • securityPolicy – Basic256 (broken
algorithm Sha1); • transportSecurity – TLS 1.0 (broken algorithm
RC4); • transportSecurity – TLS 1.1 (broken algorithm RC4). e)
deprecated Transport (missing support on most platforms): •
SOAP/HTTP with WS-SecureConversation (all encodings).
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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