John the Ripper

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Installer John

$sudo apt-get install john

Préparer le fichier

$sudo unshadow /etc/passwd /etc/shadow > mypasswd

Lancer la recherche de mots de passe

$sudo john mypasswd

Afficher les résultats

$sudo john –show mypasswd

$sudo john --status

While John the Ripper is running, press any key (like enter) to see a status output. Or to check from another terminal you can run john --status. The output looks like this:

DES cracking speed: 94g 0:01:08:34 74% 2/3 0.02284g/s 2784p/s 97648c/s 269491C/s day?..Hal?
1                   2   3          4   5   6          7       8        9         10

Here is what each section means:

   Type of encryption it is trying to crack with
   Number of successful password guesses
   Time elapsed since started
   Percent completed for that pass
   Current pass / number of passes total
   g/s = successful guesses per second
   p/s = passwords tested per second
   c/s = crypts (password hashes) computed per second
   C/s = crypts tested per second (in versions below 1.8.0 this was “c/s”)
   The current word it’s trying.