Generating a Zone Master Key Component

Command: F (Form ZMK). Can be used in online, offline or secure state.

Function:     To generate a ZMK component and display it in plain and encrypted forms.

Inputs:        None.

Outputs:     Clear text ZMK component: 16 or 32 hexadecimal characters.
ZMK component encrypted under a variant of LMK pair 04-05: 16 or 32 hexadecimal characters.
Component check value; formed by encrypting 64 binary zeros with the component and returning the left-most 24 bits: 6 hexadecimal characters.

Errors:        Internal failure 12: function aborted - the contents of LMK storage have been corrupted or erased. Do not continue. Inform the Security Department.

Example:

Online> F <Return>

Clear ZMK Component: XXXX XXXX XXXX XXXX

Encrypted ZMK Component: XXXX XXXX XXXX XXXX

Key check value: XXXX XXXX XXXX XXXX

 

 

Note: You must use 000 not 100 to obtain a valid ZMK from FK command