iCOM KVL-125 Fill Device for Digital Two Way Radios Instructions

iCOM KVL-125 Fill Device for Digital Two Way Radios Instructions

Introduction

The KVL-125 is a Key Fill Device used to manually load encryption keys into APCO Project 25 compliant digital radios. DES-OFB and AES encryption algorithms are supported.

The project 25 Standard does not allow for Encryption Keys to be read from a radio. Memory locations are provided in the KVL-125 to store encryption keys. The number of Keys that can be stored depends on the type of Keys being used. Since AES Keys are 256 bits in length, more memory space is required when storing an AES key than when storing a 64-bit DES Key.
Combinations of DES and AES Keys can be stored. Once Keys are stored into memory, they cannot be viewed unless the password is entered. Keys can be loaded into a radio without viewing the Key. This allows Keys to be entered into the KVL-125 key fill device by one person, and then key-loaded into radios, by another person who does not have the password, thereby keeping the Keys secure.

When an Encryption Key is created, the CKR/SLN, Key ID, Key Type, and Keyset ID must also be defined. The CKR/SLN (Common Key Reference or Storage Location Number) is the storage location within the radio where the Encryption Key will be stored. The valid range for Traffic Encryption Keys (Key IDs) is 1 through 4095. The Key ID is a four-digit hexadecimal number that is sent over the air and identifies which Encryption Key should be used by the receiving radio to decrypt the incoming message. The Key Type defines the encryption algorithm, either DES (Date Encryption Standard) or AES (Advanced Encryption Standard). The Keyset ID defines the active keyset, usually 01 unless OTAR is being used.

Prerequisites

• Radio must have v2.1 Firmware or greater
• Icom P25 Radios must be enabled with Encryption capabilities
• DES: UT-134 required only / AES: UT-134 and ISL-P25AES License needed (per radio)
• KVL-125 Unit (Powered by a 9-volt battery)
• PC with HyperTerminal installed
• DB-9 to DB-9 serial cable or DB-9 to USB adapter cable for connection to PC
• Icom P25 Radio connection cable
• IC-F7010/F7020 Portable cable: OPC-IAKVL14 (14 Pin)
• IC-F7510/F7520 Mobile cables: OPC-IAKVL1 + RJ45-RJ45 (female) + IAOPC1076

KVL-Radio Connections

Setting up the KVL-125 Using HyperTerminal

1. Open the HyperTerminal software and create a new connection to the KVL-125 using the following settings:
   • Select the Com port in HyperTerminal (Verify it matches the connected port in Device Manager)
   • Data rate: 19200 bps (Bits per Second)
   • Data Bits: 8
   • Parity: None
   • Stop Bits: 1
   • Flow Control: Hardware
2. With HyperTerminal running on your PC, connect the powered-down KVL-125 to your computer and Icom P25 radio.
3. Turn On the KVL-125 and the following Menu will appear on HyperTerminal:
   

Note: The following functions can only be done when the radio shows Key Waiting on its Display.

To put your F7010 series radio into Key Waiting mode, press the following Keys:

Press and hold the left “─” on the navigation pad and the P1 key while turning radio on. Once these keys have been pressed, the Display will show Key Waiting.

Selecting 1 will show all the Keys already loaded in your Icom P25 Radio.
Selecting 2 will show all the Keys loaded in your KVL-125 key loader.
Selecting 3 will allow you to program/load an Encryption key in the Radio.
Selecting 4 or 5 will allow you to delete an encryption key from either the KVL 125’s memory or a radio’s memory. All Keys, or a single Key, can be deleted or zeroized. Selecting “A” will zero all Keys; selecting “S” will zero a single Key. To delete a single Key, the CKR/SLN of the key to be deleted must be entered before pressing the S key.
Selecting 6 will allow you to change the Password in KVL-125.

Generating a New Encryption Key into the KVL-125 425

1. At main Menu, type 3.

2. Enter a new CKR number, Key ID and Keyset ID (Keyset ID can only be 01 or 02).

3. Set Key Type as DES or AES.
   

4. Enter your Encryption Key (16 Digits for DES and 64 Digits for AES).

5. The Key shown here is an example only. You will need to enter a correct Encryption key.
   

6. Press CTRL + S to save this key to KVL-125 Memory. The following message will appear.
   

Loading Encryption Key into the Icom P25 Radio

1. Put your F7010 series radio in the Key Waiting mode.

2. Press and hold the left “─” on the navigation pad and the P1 key while turning radio on.
   Once these keys have been pressed, the Display will show Key Waiting.

3. At main Menu, type 3.

4. Enter just CKR and press CTRL + G.

5. Type in Password. Default: HEYTHERE (Need to enter first time only).
   The encryption key will appear (example only).
   

6. Press CTRL + L to Load Key into the Icom P25 Radio (following message will appear).
   

Resetting the KVL-125 to factory defaults

1. Go to the Main Screen.
   

2. Type *DEF.**

3. Type YES when the following screen appears.

The following message will appear.

All stored Keys will be erased from the KVL memory and the Key Loading password will reset to HEYTHERE

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