them.
If E2EE traffic keys become outdated—which can happen in poor network coverage conditions—
you can manually update them as described here.
Manual key update is not supported on radios which rely on a Smartcard for E2EE.
During a manual update any active ongoing non-emergency call or ambience listening calls are
cleared.(Any active emergency calls are maintained.)
Manual update requires good network conditions.
To manually update E2EE keys
Your radio must be in TMO mode to update E2EE keys.
Either press a suitably customised soft key or use the following procedure:
1. Press Menu then select Security > Crypto Settings.
2. Scroll to New Key and press Send.
When the key update is in progress the Key agreement status icon appears.
Zeroising
Radios that support End-to-End Encryption are loaded with sensitive cryptographic keys. To avoid a
potential security compromise, you may be able to delete (zeroise) these cryptographic keys if
permitted by your operational procedures.
Please refer to your Security Officer for details on how to zeroise your radio as well as related
operational procedures.
100 SCC3 colour console
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