Symptoms
When calling LicensingFactory.GetLicensing() method, it gives a SessionException, which looks like below.
Tamper detected: IHRfX3VUNUZNOHVGaHRIdUFqNHQzUHcxd3FmY2xFOCAgZmFsc2UgeyBbInRfXzRFd3drclhVY2JHS1d1Rm9MQXN0MkZCSUY1USJdID0gdHJ1ZSxbInZpc3VhbF9zdHVkaW8iXSA9IHRydWUsWyJ0X19hbXpxOUJvdzIxTmxIRXNKUnZZTkpMVXk1SXMiXSA9IDFoOGUzRVVISXNnaE51dW
StackTrace:
FlxDotNetClient.SvcSessionException: MID=0, SID=0, EID=6:
Tamper detected: IHRfX3VUNUZNOHVGaHRIdUFqNHQzUHcxd3FmY2xFOCAgZmFsc2UgeyBbInRfXzRFd3drclhVY2JHS1d1Rm9MQXN0MkZCSUY1USJdID0gdHJ1ZSxbInZpc3VhbF9zdHVkaW8iXSA9IHRydWUsWyJ0X19hbXpxOUJvdzIxTmxIRXNKUnZZTkpMVXk1SXMiXSA9IDFoOGUzRVVISXNnaE51dWZZaUY1aDJGdXM4LH0g
---> FlxClientCommon.SessionException: MID=0, SID=0, EID=6:
Tamper detected: IHRfX3VUNUZNOHVGaHRIdUFqNHQzUHcxd3FmY2xFOCAgZmFsc2UgeyBbInRfXzRFd3drclhVY2JHS1d1Rm9MQXN0MkZCSUY1USJdID0gdHJ1ZSxbInZpc3VhbF9zdHVkaW8iXSA9IHRydWUsWyJ0X19hbXpxOUJvdzIxTmxIRXNKUnZZTkpMVXk1SXMiXSA9IDFoOGUzRVVISXNnaE51dWZZaUY1aDJGdXM4LH0g
at Z.c42b7e595b624b067271ba80492e113a7.c78c4293b94c9379b23066a8444b66e56(UInt16& c1e7cda42c1344f35746723eda06c39c9, Byte[] c306c26e632118e6bc1a0485b6d29b40c)
--- End of inner exception stack trace ---
at Z.c42b7e595b624b067271ba80492e113a7.c78c4293b94c9379b23066a8444b66e56(UInt16& c1e7cda42c1344f35746723eda06c39c9, Byte[] c306c26e632118e6bc1a0485b6d29b40c)
at FlxLicensingClient.Error.Initialize()
at (cf5874f1fbfa57a7f6f6a3aad40bc9270 )
at FlxDotNetClient.LicensingFactory.GetLicensing(ILicensingOptions licensingOptions)
Diagnosis
It has been found that this error occurs mostly in the cases where client machine is missing certificates or its trusted root certificate chain is broken and hence signature of FlxCore.dll/FlxCore64.dll doesn't gets verified.
This can be checked by running Microsoft's tool signtool with the verify /pa option from command prompt. For example:
signtool verify /pa FlxCore64.dll
Running this should produce system error.
Solution
- Try running a Windows update or apply the pending Windows patches and reboot the system. This should rebuild the certificate chain of system.
- Verify again the certificate chain by running
signtoolverify/pa FlxCore64.dlland this should pass. - If you still are getting a Tamper detected
FlxDotNetClient.SvcSessionException: MID=0, SID=0, EID=6error, then it may need further debugging, so please reach out to Revenera Support.
Additional Information
In certain machines, it is found that the FlxCore64.dll code signing certificate is not being trusted or added automatically to machine trusted certificate store causing the error. In such cases, you can right click the dll, go to Properties > Digital Signatures and export the certs in Base 64 encoded X.509 (CER) format and then install to the local machine store to resolve the issue.
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Case id: 00001065
Activity: Status change: 2 hours ago