Erasing Encryption Keys; Requesting An Over-The-Air Rekey; Mdc Over-The-Air Rekeying Page (Conventional Only) - Motorola APX 7000 User Manual

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Advanced Features
2.10.3.3

Erasing Encryption Keys

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 menu 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 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 PLS WAIT. When all the encryption keys have been erased, the display
shows ALL ERASED.
NOTICE: 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.
2.10.3.4

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 Press and hold the preprogrammed Rekey Request button to send the rekey request.
If the rekey operation fails, a bad-key tone sounds and the display shows RKY FAIL.
NOTICE: The rekey operation failure indicates that your radio does not contain the UKEK
or USK.
2.10.3.5

MDC Over-the-Air Rekeying Page (Conventional Only)

This feature allows you to view or define MDC Over-the-Air Rekeying (OTAR) features. It is applied
only when operating in secure encrypted mode. In addition to Rekey Requests, OTAR transmissions
include Delayed Acknowledgments, and Power-up Acknowledgments.
Some of the selected options require configuration at the Key Management Controller (KMC) site to
work properly.
NOTICE: This feature must be preprogrammed by a qualified radio technician. Check with your
dealer or system administrator for more information.
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