UNIX Password-Cracking Programs

Now that we have covered how passwords are stored on UNIX and how UNIX encrypts passwords, we can cover some common UNIX password crackers. If you search the web or go to www.astalavista.com, a network security/hacker search engine, and type in UNIX password crackers, you receive several results.

The programs I chose for this section were selected because they cover the range of features that are offered in UNIX password crackers and are also the most popular— for example, the first program that we will cover, Crack, is probably one of the most popular password crackers for the UNIX environment. When covering the various password-cracking programs, it is important to remember that there are three basic methods ...

Get Hackers Beware now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.