ENCRYPTION
OVERVIEW OF ENCRYPTION
ENVOY™ TRANSCEIVER REFERENCE MANUAL 319
Related links:
Viewing the COM port setting in VCOM on page 303
Secure key
A secure key is a sequence of characters that is used by a CES-128 encryption
algorithm to encrypt voice, or an AES-256 encryption algorithm to encrypt voice or
data. The secure key is contained in an index. The index provides a means of
identifying the key, for example Corp-01 or TEK001. The prefix of the key index
can be set in Settings > Security > CES Key Prefix and Settings > Security >
Digital Key Prefix.
Typically, each station is programmed with the same key set so that when a particular
index is selected at any station, the key stored within is the same. Stations need to use
the same key to provide end-to-end secure communication.
The format of a secure key depends upon the encryptor with which it is used.
Setting secure status
at power up
Yes Yes Yes Yes
Selecting secure
key/code
Yes Yes Yes Yes
Editing secure key N/A Yes Yes Yes
Erasing secure key N/A Yes (individual or
all)
Yes (all) Yes (all)
Setting/Locking
digital voice data
rate
N/A N/A Yes N/A
Setting/Locking
digital voice mute
N/A N/A Yes N/A
Setting digital mute
status at power up
N/A N/A Yes N/A
Table 14: Features available with CIVS scrambling, and CES and AES encryption (cont.)
Feature CIVS Voice CES-128 Voice AES-256 Digital
Voice
AES-256 Data
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