User's Manual

ENCRYPTION

AES-256 ENCRYPTION

310 ENVOY™ TRANSCEIVER REFERENCE MANUAL

The data modem switches to power-save mode if:

• a computer is not detected

• the cable between the computer and data modem is disconnected

• the RC50-C HF Email software is shut down

The AES-256 digital data encryptor uses secure keys to provide secure

communications. The display on the handset clearly indicates whether the transceiver

is secure (TEKindex) or clear (Clear Data).

NOTE: You can change the prefix for the AES secure keys in Settings >

Security > Digital Key Prefix, using KMS, or via CICS.

Figure 61: Channel screen showing secure/clear status for AES-256 digital

data

Figure 62: Channel screen showing transmit/receive status for AES-256

digital data

The AES-256 digital data encryptor can use a key in secure index 0. This key may be

programmed at any time, by any user. This key cannot be programmed by KMS. If all

of the secure keys have been erased, the user can enter a new key into index 0 for

immediate secure communications.