Issue while OIC is connecting to Cloud Data Science

Summary:

We are connecting to Data science through REST adapter using the security policy OCI signature version 1. It is failing while testing the connection with this error: CASDK-0005: A connector specific exception was raised by the application. Failed to validate the OCI signature. Please check credentials entered.

Content (required):

This connection has been working in our Production instance since August 2021. Last week as part of the password reset policies, the OCI keys had to be changed. Since then we are unable to test the connection, as it is failing with the above mentioned error.

As of now we cannot create any REST connections to Data science as calls any model will fail with the same error while testing tje connection.