TrackSomebody.com

october27thgroup.com pentesting, pci, red team

illmob.org

Password Cracking speedup using Ordered Markov Chains

February 25th, 2017 by admin in cracking

Based off this paper resulted in increased cracking accuracy by 22.5% from John the ripper’s Markov and incremental model created a tool that wass flexible enough to perform n-gram and markov chains based password generation using a cracked password list. It works because a large number of users use some part of their email or username or any other detail in their password and if we can first check passwords that start with n grams containing usernames portions, user emails portions etc, then we can intuitively speed up the accuracy and the experiments proved this intuition right. Another reason for increased accuracy was using a training word list from the same category as that of website i.e adult/relationship websites. These two factors were the main cause of the increase in accuracy.

source: http://fsecurify.com/using-ordered-markov-chains-and-user-information-to-speed-up-password-cracking/

data: https://github.com/faizann24/Using-Ordered-Markov-Chains-and-User-Information-to-Speed-up-Password-Cracking

Leave a reply