In the age of information technology, security of sensitive information is very crucial. In the last few years the trend of spying on others has improved and many people are looking for top hack tools which enable them to crack passwords or hack other people’s devices. One of the ways to account for the privacy of your data is to carry out penetration tests to see if your accounts can be cracked. One of the greatest and free password cracking software tools is John the Ripper. Here is all you need to know about this tool.
How do password crackers work?
In the study of cryptographic systems, we try to see if there are vulnerabilities which hackers might be able to use to break into a system with or without the password key. This process is called cryptanalysis. Password cracking is in fact the process of recovering or in other words, hacking passwords from data that have been stored in or has been transmitted by a computer system or within a network. One of the most common methods for password cracking is the ‘brute-force attack’. Simply put, it is the process in which a computer system guesses for the correct password by cross-checking against an available cryptographic hash of the password.
If the brute force attack is against clear-text words, then the process is a ‘dictionary attack’. If the password is guessed using password hashes, then the used process would be a ‘rainbow’ table. One of the top password cracker tools is John the Ripper which I will describe in more details in what follows.
What is John the Ripper?
A free password cracking software tool, John the Ripper runs on fifteen different platforms. It is one of the most popular password testing and breaking programs as it combines a number of password crackers into one package. Simply said, this tool works and it is highly effective.
JTR is an awesome piece of software that can be used to crack passwords; even the most complicated ones. This tool is one of the popular password cracker tools and a pentesting tool that is most commonly used to perform dictionary attacks.
Password cracking is the process of hacking passwords from data that have been stored in or has been transmitted by a computer system or within a network. JTR combines a number of password crackers into one package, autodetects password hash types, and includes a customizable cracker.
John the Ripper is a fast password cracker. In fact, you can consider John The Ripper as ‘the definitive’ password hacking tool!
Is John the Ripper free or paid?
John the Ripper is both free and paid. There is a free version of this tool available. There is also a pro version available which is paid. The free version of the JTR which is a commercial version is used by penetration testers that are interested in password cracking for specific operating systems.
For the average user, the free ‘open-source’ version will work great. However, for the real hard-core user we’d certainly recommend the Pro version.
Download John the Ripper
JTR is available for download for Windows, MacOS and Linux. Here are the download links.
I hope you found this tutorial article useful. If you have any questions or any trouble downloading the file, please don’t hesitate to mention it in the comments section.