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3 To save the new keysets, press Sel.
The radio exits keyset selection and returns to the Home screen.
11.2.8
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 option operates as configured by the dealer or
system administrator. Erasing all keys using the Orange button erases all keys in all keylists in the
radio.
Procedure:
1 Press the Eras menu item.
The display shows the last selected and stored encryption keys.
2 Select the required encryption key or enter the key number.
3 Erase encryption keys by using one of the following options:
•
To erase a single or current key, press Sngl.
•
To erase all keys, press All.
You can abort this screen and return to the Home screen by pressing Abrt.
11.2.9
Requesting 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).
Procedure:
1 Press the Reky menu item.
2 To send the rekey request, press the PTT button.
3 To exit the feature and transmit in normal mode, perform one of the following actions:
•
Press the PTT button again.
•
Press the Home button.
•
Press the Emergency button.
If the rekey operation fails, a negative tone sounds and the display shows Rekey fail
NOTE: A rekey operation failure indicates that your radio does not contain the UKEK or
USK.
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Chapter 11 : Secure Operations
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