RE: Display User Password?

["Dan Bale" <dbale@xxxxxxxxxxxxx>]

<sheepish grin>

OK, I see how that works.  It didn't occur to me that it was trying to
encrypt plaintext guesses to find a match.  D'oh.

Thanks for the explanation.

db

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx / Douglas Handy
> Sent: Wednesday, September 29, 2004 9:19 AM
>
> Dan,
>
> > How does the password cracker
> > program *know* when it has found the "clear text" password?
>
> You feed it the encrypted form of the password, which must get
> matched.  You get that from places like QSYRUPWD api, for example.
>
> The bruteforce method then attempts to match that ciphertext by
> testing various plaintext passwords, encrypting each using the proper
> algorithm, then comparing the result to the desired ciphertext you
> told it to match.  If they are the same, then the password has been
> found.
>
> In some scenarios, "dictionaries" of word lists are used as the set of
> plaintext passwords to attempt.  In the particular crack program being
> discussed, it simply generates the "next" possible permutation subject
> to the command line options to limit the starting letters or password
> length, etc.  On my PC, it does that at the rate of somewhat over 19
> million tests per second.