your SDK appears to be the C++ SDK of Unified Automation which is one of the Members of the OPC Foundation and active in many working groups. Please find their contact information on their website, I'm sure they can help with the OpenSSL Update:

Contact - Unified Automation

Regards,
Alexander Allmendinger

You should look in the readmes to figure out the correct vendor.

I'm new to the OPC UA world. Could someone please help me with replacing OpenSSL v1.1.1.13 (uasdkcppbundlepubsub-src-win32-x86-vs2015-v1.7.5-534.exe)? What is the sequence I need to follow to rebuild the project with OpenSSL v3.5.x? OpenSSL v1.1.1.13 will be phased out by January 2026. What is the best approach? Is there compatibility between the UA SDK version and OpenSSL?

I tried replacing \third_party\openssl\include and \third_party\openssl\lib with v3.5.4, but the build is broken.

I appreciate any help.

the quickest you'll find it in Part 4 where the status code is defined:

UA Part 4: Services - 7.38.2 Common StatusCodes

You'll also find helpful information in Part 6:

UA Part 6: Mappings - 6.2 Certificates

UA Part 6: Mappings - 6.2.3 User Certificates

For more detailed background you will also need to check the RFC 5280 and its updates.

I hope this helps,
Alexander Allmendinger

this is an error test case and it is not expected that the server accepts the connection but returns the proper error code. The test case expects the Bad_IdentityTokenInvalid StatusCode to be returned.

Regards,
Alexander Allmendinger

  In addition to what Alexander said, UAFX does require security and it sounds like you have not configured any security, so that maybe a start to what you need to look at in GitHub for your project.

Paul

from the CTT errors you provided it sounds like you are running your server with an invalid configuration or invalid certificate. Since the open62541 is not an OPC Foundation offering you will potentially get a faster feedback when you use the issues in the open62541 GitHub project.

Since the demo server included in the GitHub project just last year has successfully passed certification, you may be able to check its configuration and adopt it to your machine and application accordingly to solve the issues.

Regards,
Alexander Allmendinger

I am New to CTT tool, I am running OPC UA server(open62541) and Using CTT tool to connect to it , below are things which I found during my experimentation: 

1. On the project settings tab I am able to do open Browse and also I am able to see the objects created by me. (hence Iam assuming, Iam able to establish connection with the server).

2. In CTT settings tab only I set both message security mode and requested security policy Uri as None.

3. Iam trying to run companion spec (OPC UA FX) , in this iam trying to execute UAFX Asset Connector Id, But iam failing at beforeTest.js itself with errors as Ceritificate does not have a security policy Uri defined.

Below is the error:

Warning:

GetEndpoints.Response.Endpoints[0].UserIdentityTokens[1].Certificate does not have a security policy Uri defined, the secure channel doesn't either

Error:

Part 4 section 7.36.4 states "the server should specify a security policy for the user token policy if the secure channel has security policy of none"

can someone pls guide me how to resolve this issue, if some changes need to be done on server side then where to do those changes in open62541.

Thanks in advance

Regards,

Rahil

In your product, do you only have structures or also some other data points like Boolean, Floats, Int32, …? If so, please configure them as well so that the scripts find what they need to execute.

You’ll find all the settings and how they are properly configured described in the help of the CTT.

Regards,
Alexander Allmendinger

After adding the structure node ID in Server Test → NodeIds → Static → All Profiles → Structures, I ran the ReadAttribute test cases, but I encountered an error during the initialization step. As a result, I am unable to test the structure node for AttributeRead.

initialize.js 2025-05-19 17:01:16.497

Warning

2025-05-19 17:01:16.638

The following data type is not configured for testing: Scalar nodes not defined. Check settings: /Server Test/Nodelds/Static/All

Profiles/Scalar.

there are no special test cases or CUs yet integrated in the CTT but the structure nodes which are configured in the settings are being utilized during the Read and MonitoredItem tests. You'll find the configuration of the setting here:

Server Test --> NodeIds --> Static --> All Profiles --> Structures

If you have any additional tests you'd like to see or where you have experienced interoperability problems which are not yet covered by our testing, we are happy to receive your feedback and look for coverage of them as well.

Regards,
Alexander Allmendinger