The first passwords began to be introduced in the 1960s, when computer systems began to develop, and managing access to them became more complicated. One example is the CTSS (Compatible Time-Sharing System), which was created at the Massachusetts Institute of Technology (MIT). Revolution OS Previou…

One way to store passwords provided by users is through the use of hash functions. In this case, the input provided, for example, during user registration, is processed by the chosen hash function, and its output is saved in the database. Hash functions, because they are one-way, ensure that it is n…

Bcrypt Cocktail and Hash Extraction TL;DR - Combining bcrypt with other unsalted hash functions (such as MD5 or SHA-1) can lead to serious consequences in the form of "extraction" of bcrypt. However, it is still better than just using a weak algorithm. In some cases, it is possible to find something…

When you have used and try all your dictionaries and the passwords still does not give up... then you need to extend your attack ( assuming the dictionary is prima sort ). The ways that hashcat offers are several. There is the dictionary attack, which we discussed at the very beginning (POST#1). We…

So you want to be a password cracker, huh? Let us show you how it's done. In this post you will learn how to crack passwords with hashcat dictionary attack. First things first. A few things are required for Hashcat to begin cracking in dictionary mode: Hash(es) to crack Hash id for given hash(es) …

In the previous post, we learned about one of the attack methods that hashcat offers - the dictionary attack. To perform such attack we need dictionary - a good dictionary, Let's be clear we need solid and (not always) big dictionary to perform good attack. Let's start by explaining what a wordlist,…

TL;DR What's that? CrackMeIfYouCan on DEFCON is one of the most popular hash cracking contests in the wild. Best teams in the world compete on a 48h challenge to crack as many hashes as possible. The are 2 classes of competitiors - Pro and Street. We played under AlphaPwners team, and finished on 5t…