Black Box MD1276A, Руководство пользователя

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AT Commands
Page 41
Entering a Key for Each User
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Enter AT#E2 to enable SuperSecure mode
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Select the security menu using AT#S
•
Enter the security password to gain access to the security menu
•
Set up the modem
’ s primary DES KEY and Initial Value (IV) as per standard DES setup
•
Select Option 2 to add new users
•
Enter the username
•
Enter the password to be used by your modem (not necessarily the same as the password on
the modem you are going to dial)
+ Do not use a / character in any password, because this character is reserved.
•
When the modem prompts you for a command, do not enter a command because you will
not be prompted for the DES KEYS
•
Enter the 16 hex digit DES secondary KEY for the user, all 16 digits must be keyed
•
Enter the 16 hex digit DES secondary Initial Value (IV) for the user, all 16 digits must be
keyed
•
Enter the 2 hex digit Key Encryptor (KE) for the user, both digits must be keyed
+ The Key, IV and KE can have any value but must be exactly the same on both
answering and orignating modems.
+
For maximum security do not use keys or initial values that have easy to
remember values.
+ A KE of 00 turns off random key rotation.
•
Enter as many users as you wish whilst in this mode
•
Press ENTER at the username prompt to return to the menu
+
You do not have to turn security on to use SuperSecure. The #E2 option forces it
on always.
•
Enter 0 to exit the security menu
+ The remote modem must not only support SuperSecure but must also have a
matching username/password and KEYS before access can be gained.