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If you already know some characters in the Password, you can specify the Mask to decrease the total number of passwords to be verified. At the moment, you can set the Mask only for fixed-length Passwords, but doing this can still help.
For example, you know that the Password contains 8 characters, starts with 'x', and ends with '99'; the other symbols are small or capital letters. So, the Mask to be set is "x?????99", and the charset has to be set to All caps and All small. With such options, the total number of the passwords that AOPR will try will be the same as if you're working with 5-character passwords which don't contain digits; it is much less than if the length was set to 8 and the All Printable option was selected. In the above example, the '?' chars indicate the unknown symbols.
If you know that the password contains character '?', you can choose a different Mask Character to avoid having one character, '?', represent both an unknown pattern position and a known character. In this case, you could change the Mask Symbol from '?' to, for example, '#' or '*', and use a mask pattern of "x######?" (for mask symbol '#') or "x******?" (for mask symbol '*').
The Mask and Mask Symbol can be defined in the "Mask / Mask Character" control at the "Brute-Force" tab.
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