Error 0xC0002A1F in BizTalk installation

During the BizTalk installation I got the error code '0xC0002A1F' when configuring the installation using the Microsoft BizTalk Server Configuration Wizard. There wasn't any error description given, only the code 0xC0002A1F which of course didn't was of much help.

Turned out this error code meant the following:

Error Code: 0xC0002A1F, Cannot perform encryption or decryption because the secret is not available from the master secret server. See the event log for related errors.

This of course was much clearer. It was clear I needed to restore the Master Secret needed of the SSO (Single Sign-on).

After restoring the master secret, all worked well.