OPHCRACK (the time-memory-trade-off-cracker)

Summary

ophcrack

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.

Publications

Download

Demo

The on-line demo has moved to the web site of Objectif Securite. Feel free to go there and crack your alphanumerical passwords in seconds.


Statistics

Average running time for of the demo, using table set SSTIC04-2.7k (1.1GB)
alphanumeric passwords: 1.67 seconds
paswords with one non-alphanumeric half (half cracked): 26.14 seconds
passwords with two non-alphanumeric halves (not cracked): 42.14 seconds
Cracking times may vary when the server is also doing other calculations
Philippe Oechslin, Last modified:April 3rd 2006