Motorola TETRA MTP850 - K Validity; SCK Validity

89
The Menu
You can delete the air interface encryption keys from the
terminal by entering the following sequence from the keypad:
**00##
K Validity
From the main menu, select Security > K Validity.
K (Key) is a secret key the infrastructure uses to authenticate
the MTP850 in the system. It is part of the authentication that
provides service confidentiality between your MTP850 and
the system.
To verify K validity, press
Select. The display will show one of
the following messages:
•
K is Valid — the infrastructure can authenticate your
MTP850.
•
K is Invalid — the infrastructure shall not authenticate your
MTP850. Please call your Service Provider to restore K to
your MTP850.
SCK Validity
From the main menu, select Security > SCK Validity.
SCK (Static Cipher Key) is a secret key the infrastructure
uses to encrypt call and data in the system. Air interface
encryption provides service confidentiality between your
MTP850 and the system. Your MTP850 should be provided
with a set of SCKs.
To verify SCK validity, press
Select. The display will show one
of the following messages:
CAUTION!
Using this feature will disable the terminal, and your Service
Provider will need to re-enable the terminal.
Deletion should be performed in idle TMO/DMO or Emergency
Operation.
6866537D80-A.book Seite 89 Freitag, 29. Juli 2005 4:15 16