Error 0x80310081

Value: -2144272255 | 0x80310081 | 2150695041

What does it mean ?

FVE_E_POLICY_PASSPHRASE_TOO_SIMPLE  
Your password does not meet the complexity requirements set by your system administrator. Try adding upper and lowercase characters, numbers, and symbols.
Value: 129 | 0x0081 | 0b0000000010000001

Where does it come from ?

FACILITY_FVE  
Full volume encryption
Value: 49 | 0x031 | 0b00110001

Other Errors for FACILITY_FVE