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2. Hexadecimal password
If you were given a password that uses only the hexadecimal range of characters (which are: abcdef0123456789), put a dollar sign ($) before the password. These passwords are 10 characters long for 40-bit encrypted networks or 26 characters long for 128-bit encrypted networks. In a hexadecimal password, the dollar sign is called the Hex Escape. It notifies the software that the characters that follow it should be treated as a hexadecimal number. Other possible hex escapes are "0x" and "0X" (zero-x, and the "x" may be upper or lower case).
Example of 40-bit: $1234abcdef
Example of 128-bit: $12345678901234567890abcdef
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