How to crack passwords (cont)

• Dictionary attacks (Crack 5, John the Ripper)

• Instant Crack with pre-crypted dictionary

• 1.3 Million word multilingual dictionary pre-crypted takes 104GB

• (1300000 * (13+8) * 4096) / 1048576 = 106640 MB

• Pre-crypted dictionaries can't hold permutations and derivatives (word1, Word1, drow, ...)

• Examples of Crack rules for each word (I try 5625 rules)

• Being safe by a factor of only 1000 (disk space wise) isn't being safe, technology moves too fast.

• Don't try this at home work :-)

• Randal Schwartz was convicted on three felony counts in Oregon

• http://www.lightlink.com/spacenka/fors/faqv4i.html