3DES Known Plaintext - How?

[clemoo]

Hi,
I've a 3DES ECB block and know the plaintext, can you help me on the hashcat syntax?

I'm trying:

Code:

./hashcat -m 14100 -a 3 0123456789abcdef:1234567 "?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a?a"

while "0123456789abcdef" represents the cipher text and 1234567 represents the known plaintext.

I just receive "Hash '0123456789abcdef:1234567': Token length exception"...

The documentation to 3DES says:

Code:

  14100 | 3DES (PT = $salt, key = $pass)                  | Raw Cipher, Known-Plaintext attack

but i have no idea how to use that.

figured it out, the plaintext "1234567" should have been hex-bytes aswell.

For those are interested: the keyspace is far to large - so the mask doesn't work