What's new in OPC Studio 2025.1

See also: Versions; Previous version: What's new in OPC Studio 2024.2

Internal version number: 5.82

Key changes:

• Elliptic Curve Cryptography (ECC)

Targeting

• .NET 6 is no longer supported (Microsoft end of support November 12, 2024). Use .NET 8 instead.

Component Improvements

OPC UA Client-Server

• The static UACertificateTypeTypeIds class now contains new properties for certificate type Ids related to ECC.

OPC UA Client

• OPC UA security policies with Elliptic Curve Cryptography (ECC) can now be used for communication by the client. Supported new security policies are ECC_nistP256, ECC_nistP384, ECC_brainpoolP256r1 and ECC_brainpoolP384r1.
• Multiple client instance certificates are now auto-generated: One for each certificate type associated with supported security policies.

OPC UA Server

• OPC UA security policies with Elliptic Curve Cryptography (ECC) can now be used for communication by the server. Supported new security policies are ECC_nistP256, ECC_nistP384, ECC_brainpoolP256r1 and ECC_brainpoolP384r1.
• Multiple server instance certificates are now auto-generated: One for each certificate type associated with supported security policies.

User Interface

• When the component asks the user for acceptance of a peer OPC UA certificate (on Console, or on Windows desktop), it now includes a type of the public key of the certificate, indicating either RSA and the size of the key in bits, or ECDSA and the name of the elliptic curve used.