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BOCA PRO16 Reference Guide
Encryption
Your modem supports Data Encryption Standard (DES) encryption.
DES encryption allows you to encrypt data being passed to a remote
modem. The remote modem must support Cipher Feedback (or CFB)
DES encryption in order to decrypt the data sent from your modem.
The #E1 command is used to select DES encryption.
The modem requires you to enter an encryption Key and an Initial Value.
These are two 16-character hexadecimal numbers. Both the Key and
Initial Value are specified by the user, making the encrypted data
virtually impossible to decrypt without access to the Key and Initial
Value.
Both modems must have DES encryption and error correction selected
and must use the same encryption Key and the same Initial Value.
Only use a reliable error correction mode when using DES
encryption. This will ensure you will only establish
encrypted connections. Refer to the \N command (in the
Commands sections of this guide) for details of the reli-
able error correction modes supported by your modem.
To enter the DES Key and Initial Value:
• Type: AT#S <E>
If your modem offers security features the Security Menu will appear
(refer to the start of this chapter):
•Type: 9 <E>
You will be prompted with the following message:
Enter Current DES Key
If your modem does not offer security features the Security Menu will
not be displayed — you will be prompted to type the current DES key.
The default DES Key is 16 zeros. If you have not entered a Key yet:
• Type in 16 zeros <E>
or
• Type in the Key previously stored in the modem <E> When you enter
the Key, each character will appear on your computer screen as the S
character.
After successfully entering the Key, the Encryption Controls Menu will
appear on your screen.
WARNING
Security and Encryption
Security &
Encryption
pro16ref.pm6 6/14/96, 2:36 PM42
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