Managing Encryption; Loading Encryption Keys; Multikey Feature; Selecting Encryption Keys - Motorola APX 2000 User Manual

68012005014-HV
Chapter 7 : Advanced Features
7.18.3

Managing Encryption

This chapter explains the encryption feature on your radio.
7.18.3.1

Loading Encryption Keys

Prerequisites:
• Refer to the Key Variable Loader (KVL) manual for equipment connections and setup.
Procedure:
1 Attach the KVL to your radio.
The display shows Keyloading and all other radio functions, except for power down, backlight,
and volume, are locked out.
NOTE:
If the Multi-system Over-the-Air Rekeying feature is in use, the ASTRO profile name is
displayed below Keyloading.
2 Select the required keys and press Load on the KVL.
The KVL indicates that keyload is successful.
7.18.3.2

Multikey Feature

This feature allows your radio to be equipped with different encryption keys and supports the DES-OFB
algorithm.
There are two types of encryption keys:
Conventional Multikey
The encryption keys are strapped on a one-per-channel basis, through Customer Programming
Software (CPS). In addition, you can have operator-selectable keys, operator-selectable keysets,
and operator-selectable key erasure. If talkgroups are enabled in conventional, then the encryption
keys are strapped to the talkgroups.
Trunked Multikey
If both conventional and trunked applications are applied, strap the encryption keys for trunking
on a per-talkgroup, or announcement-group basis. Also, a different key can be strapped to other
features such as dynamic regrouping, failsoft, or emergency talkgroup. You can have operator-
selectable key erasure.
7.18.3.3

Selecting Encryption Keys

Procedure:
1 or to Key.
2 Press the Menu Select button directly below Key.
The display shows the last user-selected and stored encryption key, and the available menu
selections. If the Multi-system Over-the-Air Rekeying feature is in use, the list of keys displayed
is only for the current secure profile of the selected channel.
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