Abus SECVEST Installer Manual page 206

Configuration
Select the desired key length
To input the key, click on "Edit key"
Name/function
Encryption length
Key length
None
128 bits
206
Explanation (checkbox)
None
128 bits
192 bits
256 bits
The messages are sent unencrypted
Note
Enter the 32 hexadecimal characters as a key here.
Hexadecimal characters are 0–9 and a–f