John the Ripper

John the Ripper

John the Ripper is a software tool designed for cracking passwords on both Windows and UNIX systems. It is specifically used for offline password cracking and is one of several techniques used in brute force attacks, including dictionary attacks and Rainbow tables.From: Software Testing and Continuous Quality Improvement [2017], AI-enabled IoT penetration testing: state-of-the-art and research challenges [2023], Security Analytics for the Internet of Everything [2020]

Cryptographic Attacks, Impacts and Countermeasures

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Published in Mohiuddin Ahmed, Abu S. S. M. Barkat Ullah, Al-Sakib Khan Pathan, Security Analytics for the Internet of Everything, 2020

Hazaa Al Fahdi, Mohiuddin Ahmed

John the Ripper: A software tool is used to crack passwords through a wordlist. Also, it can run in different operating systems such as Unix and Windows. Thus, by giving a limited key length and enough time, a brute force attack can be launched successfully on a ciphertext or plain text [11].

AI-enabled IoT penetration testing: state-of-the-art and research challenges

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Published in Enterprise Information Systems, 2023

Claudia Greco, Giancarlo Fortino, Bruno Crispo, Kim-Kwang Raymond Choo

- John the Ripper is a tool for offline password cracking. Starting from a word list of likely passwords, the tool mutates potential password candidates, for instance replacing alphabet letters with similar symbols. Since short passwords of little complexity are commonly used by users, John the Ripper is frequently successful.

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Cryptographic Attacks, Impacts and Countermeasures

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