hashcat Forum

hi,

i am new here ,since last few days i am playing around with cudahashcat 1.33.

i am still struggling to use DES but cant figure out correct syntax to launch a mask attack for a known DES pair.

for example i have DES pair in HEX as:

KEY: 5A5A57676A57666F << known but i want to recover it for testing
CRYPT: 974AFFBF86022D1F
PLAIN: 675A69675E5A6B5A


i want to try a small key space example:
key space range from 5A5A576600000000 To 5A5A576800000000

now i don't know how to feed my crypt and plain text along with keyspace i searched again n again cant find any doc or wiki for such requirements ...

i have to select hash type as 1500 for DES not sure about other parameters that i should write in command on cli

Do i need to convert my values into asci first ?

OR hashcat doesn't support this at all ?

Regards

Hi, oscam. Last I'd heard (2012), key-based DES is not supported.

The hash type 1500 - "descrypt, DES(Unix), Traditional DES" - is not keyed DES encryption. It's a format used to hash passwords on Unix-like systems.

The following are all descrypt hashes for 'password':

6NYGjYJ/Vtq4U
x5llgroRjNYY2
ei.7.fxJ1Z2gY
TgYhzILiiThG2
ij8tfUhriJeww
06RVN8sVedRc2
mJURGKzyJfnEE
mmtWGc4ncckXo
br7QH37oXbKf6
nB/C.wE/fEFBk
VkxwDhWfjTFiE

As you can see, they are different from your sample - both in appearance, and in kind.

Hello royce,

Thanks for your time , i had doubt and was confused , Thanks for your reply i understood now the difference.

Perhaps i have DES a small program in C++ which i wrote to increment in predefined key and try one by one , but it use CPU and no threading as well dead slow lol, i want to try such program using GPU to see the speed performance.


Regards