iStorage diskAshurDT Manual - Manual (Page 13)

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diskAshur DT Brute Force Protection
What is Brute Force Attack?
A brute force attack is a method of defeating a cryptographic scheme by systematically
trying a large number of possibilities; for example, a large number of the possible
keys in a key space in order to decrypt a message. In most schemes, the theoretical
possibility of a brute force attack is recognized, but it is set up in such a way that
it would be computationally infeasible to carry out. Accordingly, one definition of
“breaking” a cryptographic scheme is to find a method faster than a brute force attack.
With the drive locked and in the standby state the LOCK indicator light will be 1.
solid RED.
After six tries to enter the correct user or admin password the keypad will
2.
not respond and LOCK indicator light will turn off. The drive will need to be
unplugged from the USB port and replugged. This will be repeated for each six
unsuccessful attempts.
If the user unsuccessfully tries to unlock the drive on his 10th try the keypad
3.
will lock and the LOCK indicator light will begin blinking quickly. Even after
unplugging and replugging in the unit, the drive will remain locked and the
indicator light will continue to blink rapidly.
Here are the steps to allow the user to unlock the keypad for 10 more attempts
4.
to unlock his drive.
a. Unplug the device from the computer
b. Push and hold the number five key and plug-in the drive
c. The LOCK and UNLOCK indicator lights will flash rapidly between RED and GREEN.
d. Enter the code
5278879
e. The keypad will unlock. The LOCK indicator light will be solid RED indicating
that the drive is in the standby state. This will allow only 10 more attempts
g. After a total of 20 attempts the drive will lock. The LOCK indicator light will flash
RED quickly. You must now go through the reset process and reformat the drive to
be able to use the drive again. (see page 15)
How does the diskAshur DT protect against brute
force attack?