Kenwood NEXEDGE NX-200 Function Reference page 454

17 COMMUNICATION SECURITY
17.3 Encryption (NXDN Digital)
• If 0 is configured for more than one Key ID in the Multi-key List:
The transceiver's behavior varies as follows depending on the value for Key ID contained in the encryption key data
which has been utilized for encryption of the received communication data, either 0 or a value other than 0.
Key ID: 0
Without searching the encryption key data, the transceiver decrypts the data using the encryption key data
corresponding to the Multi-key List Number configured for the channel where the transceiver has been on
standby to receive the encrypted signal. If the data is properly decrypted, the received audio sounds from the
speaker. If the data is decrypted incorrectly, the received audio sounds from the speaker without being
decrypted.
Key ID: Any value other than 0
The transceiver searches the encryption key data configured for the transceiver. If the Key ID included in the
encryption key data, which was used for encryption of the received communication data, matches the Key ID
included in the encryption key data which is configured for the transceiver, the transceiver can use the
encryption key data to decrypt the data. If the data is properly decrypted, the received audio sounds from the
speaker. If the data is decrypted incorrectly, the received audio sounds incompletely from the speaker. The
transceiver mutes the speaker if the Key IDs do not match.
 AES/ DES encryption type
The transceiver searches the encryption key data configured on the SCM. If the Algorithm (AES or DES) and Key ID
included in the encryption key data used for encryption of the received communication data match the Algorithm and
Key ID included in the encryption key data configured on the SCM, the transceiver uses the encryption key data to
decrypt the data. If the data is properly decrypted, the received audio sounds from the speaker. If the data is decrypted
incorrectly, the received audio sounds incompletely from the speaker. The transceiver mutes the speaker if the
parameters for Algorithm do not match or if the Key IDs do not match.
If Encryption Is Disabled:
Following are the transceiver behaviors that may vary depending on the configuration for Encryption Type (Type 1 or Type
2):
 Type 1
The transceiver behaves in the same manner as a transceiver with Encryption enabled.
 Type 2
The received audio does not sound from the speaker.
Note
Upon receipt of unencrypted communication data, the transceiver emits the received audio from the speaker according to the audio
control conditions regardless of the Encryption status (enabled or disabled) or configuration for Encryption Type.
Configuration using KPG-111D/ DN
Configuring the Encryption Type (
FUNC (K)/Ver 4.00
See FPRG 8.26.6 Encryption Type)
CONTENTS INDEX 420