We are exposing ERP RFC to .net application using SAML 2.0 with webservice Holder-of-key external token issuer option.
We are using ADFS as STS in between SAP and .net.
We have setup all the required configuration from ADFS and SAP SOA manager. ADFS configuration (Token issuer) was verified and validated by our ADFS team. We have also successfully applied new certificate and also configured new Endpoint.
With the above setup, now Webservice is making a call to SAP.
We configured STRUST & WSS_SETUP.
But it is failing to authenticate with this following error message. Errors are logged in SRT_LOG as below:
Dereferencing the NULL reference. Message class SRT_CORE & 143
The error message is coming from Method APPLY_ST in class CL_WSSE_PROCESSOR.
From the code we understand that X509 'Encrypting Token' is expected. But not sure where to pass and how to fix it.
Kindly help us in resolving this.