Error 0x80090015

Value: -2146893803 | 0x80090015 | 2148073493

What does it mean ?

NTE_BAD_PUBLIC_KEY  
Provider's public key is invalid.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

FACILITY_SSPI  
Used for status code returned by Security Support Provider Interface (SSPI)
Value: 9 | 0x009 | 0b00001001

Other Errors for FACILITY_SSPI