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WARNING: This information has not been updated since October, 1997!
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INDEX ENTRY FOR CRACK:
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Name: Crack - Tries to guess users' passwords
Version: 5.0
Author(s): Alec David Edward Muffett <alecm@crypto.dircon.co.uk>
Alec Muffett
Unix Network Security Consultant
Oxford, UK
"I didn't invent the Unix Password Security problem.
I just optimised it." -- Alec D.E. Muffett
Ftp source: ftp.ox.ac.uk:/pub/comp/security/software/crackers/
Web page: http://www.users.dircon.co.uk/~crypto/
Description:
Crack is a freely-available program designed to find standard UNIX
eight-character DES encrypted passwords by standard guessing
techniques. It is written to be flexible, configurable and fast,
and to be able to make use of several networked hosts via the
Berkeley rsh program (or similar), where possible.
-- Quoted from Docs/readme.txt by Alec Muffett in the
crack_4.1 distribution.
Advertised architectures:
Crack may be used to check passwords for most popular Unix password
systems (Trad Unix, bigcrypt(), crypt16(), FreeBSD and other MD5-based
systems), and patches are available on the Net to allow it to be used
to break Windows NT passwords on a Unix host.
Crack 5 has been tested on Solaris, Linux, FreeBSD, NetBSD,
OSF/1 and Ultrix.
Prerequisites:
* Unix-like operating system.
* C Compiler.
* Moderate amount of disk space.
* Lots of CPU time.
* PERMISSION FROM YOUR SYSADMIN.
* Root-privileges, quite possibly.
* "gzip" is extremely desirable.
* "perl", if networking/multiprocessing.
