Erasing Encryption Keys; Requesting An Over-The-Air Rekey - Motorola APX 8000 User Manual

7.18.3.5

Erasing Encryption Keys

Do one of the following to erase the selected encryption keys. You can use the options interchangeably
depending on your preference and the programmed functions.
If the Multi-system Over-the-Air Rekeying feature is in use, the keys erased are only for the current
secure profile of the selected channel. The erase all option operates as configured by the dealer or
system administrator. Erasing all keys using the Top (Orange) button and the Top Side (Select) button
erases all keys in all keylists in the radio.
Procedure:
• Erasing the selected encryption keys using the radio menu:
a. or to Eras and press the Menu Select button directly below Eras.
The display shows the last user-selected and stored encryption key, and the available menu
selections.
b. or to the desired encryption key or use the keypad to enter the number of the desired
key.
c. Press the Menu Select button directly below Optn .
The display shows the available key erase options.
d. or to the required option and press the Menu Select button directly below Sel .
e. Select Erase all keys? or Erase single key? by pressing the Menu Select button
below Yes to erase the encryption key(s) in the radio.
You can return to the previous screen by pressing the Menu Select button below No.
• Erasing the single key in radios with the single-key option and erasing all keys in radios with
the multikey option by using the preprogrammed Top Side (Select) button and Top (Orange)
button:
a. Press and hold the Top Side (Select) button.
b. While holding Top Side (Select) button down, press the Top (Orange) button.
The display shows Please wait. When all the encryption keys have been erased, the
display shows All keys erased.
NOTE: Do not press the Top (Orange) button before pressing the Top Side (Select)
button, unless you are in an emergency situation as this sends an emergency alarm.
7.18.3.6

Requesting an Over-the-Air Rekey

If the Multi-system Over-the-Air Rekeying feature is in use, the rekey request is only for the current
selected secure profile.
Prerequisites: Ensure that the Unique Key Encryption Key (UKEK) or Unique Shadow Key (USK) is
loaded into the radio with the Key Variable Loader (KVL) before the rekey request can be sent. Refer
to your local key management supervisor for more information.
Procedure:
1 or to Reky.
MN001425A01-AW
Chapter 7 : Advanced Features
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