K Validity; Sck Validity - Motorola TETRA MTP850 Feature User Manual

You can delete the air interface encryption keys from the
terminal by entering the following sequence from the keypad:
**00##
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.

K Validity

From the main menu, select Security >
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
the following messages:
•
K is Valid
MTP850.
•
K is Invalid
MTP850. Please call your Service Provider to restore K to
your MTP850.

SCK Validity

From the main menu, select Security >
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
of the following messages:
Select
— the infrastructure can authenticate your
— the infrastructure shall not authenticate your
Select
K Validity
. The display will show one of
SCK Validity
. The display will show one
.
.
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