User's Manual

157
Document Number: 0100SM1401 Issue: 12-16
AES Encryption
When encryption is enabled in a network, all data sent over the air is encrypted and can only be read by radios sharing the
same Encryption Key. Encryption must be enabled in each radio in a network. The encryption key is 256 bits long and is
entered as string or a hexadecimal number. For maximum security the chosen key should be one that is difficult for an
intruder to guess.
Once written into the radio using the programmer, it is not possible to read the encryption key so care must be taken to
record the key in a safe place.
Encryption Key: String
For a string type of key, use up to a maximum of 64 printable characters. Observe that the key is case sensitive.
Some examples are:
TRIO2012
Murray River Region
Encryption Key: Hexadecimal Number
Hexadecimal numbers can have a value of 0 to 15 and are represented by 0-9 and A, B, C, D, E or F.
A hexadecimal key begins with 0x and has up to 64 digits following.
Use an even number of hexadecimal digits.
Some examples are:
0x1234
0x123456789ABCDE
0x11111111222222223333333344444444 up to 64 digits
Configuration of AES is done via Setup -> Security
Part H – Advanced