Chapter 7 Encryption
This chapter provides procedures for using the encryption capability of your radio. The following
procedures are outlined:
• Loading an encryption key
• Selecting an encryption key
• Selecting an Index
• Erasing an encryption key
7.1 Load an Encryption Key
Keys will be loaded from the KVL to the radio in either clear or encrypted form depending on the
configuration of the CPS parameter "KVL – FIPS Level 3 Approved Mode". If the parameter is
disabled, keys will be sent in clear form; if the parameter is enabled, keys will be sent to the radio in
encrypted form.
NOTE: A KVL3000 Plus with software version R03.52.45 or greater must be used to load keys to a
radio with "KVL – FIPS Level 3 Approved Mode" enabled.
To load an encryption key:
1. Refer to the key-variable loader (KVL) manual for equipment connections and setup.
2. Attach the KVL to the radio. “KEYLOADING” is shown on the main display of a configured
radio. All other radio functions, except for power down, backlight, and volume, are locked out.
3. Refer to the KVL manual for how to load the encryption keys into the radio.
4. When the key is loaded successfully, you will hear:
• On single-key radios – a short tone.
• On multikey radios – an alternating tone.
The secure kits for APX 2000/ APX 4000 (Two Knobs) are identified by the following kit numbers:
Table 7-1. Kit Numbers for Secure-Enabled Keypad Boards (Model 2)
Kit Number Description
NNTN8791A ADP/LOcalized Enabled Encryption, Model 2
NNTN8792A ADP/DVP-XL/Localized Enabled Encryption, Model 2
NNTN8793A ADP/AES/DES/DES-XL/DES-OFB/Localized Enabled Encryption, Model 2
NNTN8794A ADP/DES/DES-XL/DES-OFB/CFX-256 Enabledconfigurable Encryption, Model 2
NNTN8795A ADP/AES/Localized Enabled Encryption, Model 2
NNTN8796A ADP/AES/DVP-XL/Localized Enabled Encryption, Model 2
NNTN8797A ADP/CFX-256 Configurable Encryption, Model 2
NNTN8798A ADP/DVP-XL/CFX-256 Configurable Encryption, Model 2
NNTN8799A ADP/AES/DES/DES-XL/DES-OFB/CFX-256 Configurable Encryption, Model 2
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