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Page 43
Entering a Key for Each User
• Enter AT#E2 to enable SuperSecure mode
• 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)
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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
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The Key, IV and KE can have any value but must be exactly the same on both
answering and orignating modems.
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For maximum security do not use keys or initial values that have easy to
remember values.
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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
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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
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The remote modem must not only support SuperSecure but must also have a
matching username/password and KEYS before access can be gained.