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. We mentioned it in our RainbowCrack and Rainbow Tables article. Changes: (feature) support of the new table set (alphanum + 33 […]
Password Cracking Tools
Password cracking and the associated password cracker tools are often the area of information security and hacking that people get most excited about, oh wow I can hack email passwords? We get emails pretty much every day asking how to crack someone's Facebook password, or retrieve website credentials etc.
What is Password Cracking?
As commonly defined:
In cryptanalysis and computer security, password cracking is the process of recovering passwords from data that have been stored in or transmitted by a computer system. A common approach (brute-force attack) is to try guesses repeatedly for the password and check them against an available cryptographic hash of the password.
The purpose of password cracking might be to help a user recover a forgotten password (installing an entirely new password is less of a security risk, but it involves System Administration privileges), to gain unauthorized access to a system, or as a preventive measure by system administrators to check for easily crackable passwords. On a file-by-file basis, password cracking is utilized to gain access to digital evidence for which a judge has allowed access but the particular file's access is restricted.
From Wikipedia.
The Best Password Cracker Software
We have covered many of the most famous, some great examples are:
- Brutus Password Cracker – Download brutus-aet2.zip AET2
- THC-Hydra – The Fast and Flexible Network Login Hacking Tool
- Download pwdump 1.4.2 and fgdump 1.3.4 – Windows Password Dumping
- Cain & Abel – Download the Super Fast and Flexible Password Cracker with Network Sniffing
- JTR (Password Cracking) – John the Ripper 1.7 Released – FINALLY
- Ophcrack 2.2 Password Cracker Released
- hashcat – Multi-Threaded Password Hash Cracking Tool
- Medusa 2.0 Released – Parallel Network Login Brute Forcing Tool
And we have also published some related resources such as:
- Password Cracking Wordlists and Tools for Brute Forcing
- Password Cracking with Rainbowcrack and Rainbow Tables
pwdump6 version 1.2 BETA Released
Version 1.2 (Beta) of the pwdump6 software has been released. There are three major changes from the previous version: Uses “random” named pipes (GUIDs) to allow concurrent copies of the client to run. This is predominately for the next version of fgdump, which will be multithreaded. Will turn off password histories if the requisite APIs […]
JTR (Password Cracking) – John the Ripper 1.7 Released – FINALLY
The new “features” this time are primarily performance improvements possible due to the use of better algorithms (bringing more inherent parallelism of trying multiple candidate passwords down to processor instruction level), better optimized code, and new hardware capabilities (such as AltiVec available on PowerPC G4 and G5 processors). In particular, John the Ripper 1.7 is […]
RainbowCrack & How To Use Rainbow Crack With Rainbow Tables
This article is about RainbowCrack & How to use Rainbow Crack with Rainbow Tables, this includes how to generate rainbow tables, where to download them and what tools to use. RainbowCrack & How To Use Rainbow Crack? RainbowCrack is a general propose implementation of Philippe Oechslin’s faster time-memory trade-off technique. In 1980 Martin Hellman described […]