Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance.

What is ophcrack?

Ophcrack is a free Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with a Graphical User Interface and runs on multiple platforms.

Features:

* » Runs on Windows, Linux/Unix, Mac OS X, ...
* » Cracks LM and NTLM hashes.
* » Free tables available for Windows XP and Vista.
* » Brute-force module for simple passwords.
* » Audit mode and CSV export.
* » Real-time graphs to analyze the passwords.
* » LiveCD available to simplify the cracking.
* » Loads hashes from encrypted SAM recovered from a Windows partition, Vista included.
* » Free and open source software (GPL).

Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.

New Release
This is bugfix release. An issue with the vista_seven tables on 32 bits architecture has been fixed, as well as some stuff related to the audit mode and CSV output.

The LiveCD corrects two recurrent problems: the misdetection of the CD on machines having more than one CD drive and memory exhaustion on machines with less RAM (lowram mode).
[ Ophcrack release history ]

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