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Metadata Analysis of Cracking Password Task
Pokorný, Šimon ; Hranický, Radek (referee) ; Veselý, Vladimír (advisor)
This thesis deals with the design and implementation of the analytical web dashboard for remote administration of the Fitcrack system. This system is used for distributed password recovery. Web administration is a single-page application which is divided into a server and client part. These parts communicate with each other. There is a lot of information across the system that logged into a database for later analysis or displayed in real-time for the user. The best form to show data is a graphical element of various types (arrow, graph, table, square) and different colors showing what is happening.
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Optimization of Task Distribution in Fitcrack System
Ženčák, Tomáš ; Ryšavý, Ondřej (referee) ; Hranický, Radek (advisor)
The goal of this thesis is the optimization of task distribution in the Fitcrack system. The improvement is reached by way of increasing the accuracy of the estimation of the computational power of worker nodes, and the prevention of the creation of extremely small tasks, as well as increasing the efficiency of the transfer of the tasks to the worker nodes. In this thesis, the current state of the Fitcrack system is described, tested, and evaluated. This thesis then describes the weak points of the current implementation, proposes ways of remediating them and describes, tests and evaluates the implementation of those proposals.
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Administration of Computing Tasks in Fitcrack System
Horák, Adam ; Zobal, Lukáš (referee) ; Hranický, Radek (advisor)
The aim of this thesis is to design and implement extensions for the Fitcrack system management application. The system is used to crack hashes and recover passwords from encrypted files. It works by distributing computation tasks across multiple computers and includes many configuration options. The extensions outlined in this thesis are meant to aid the user in creating and working with jobs in the system. These include grouping jobs, batch running, and exporting to a file.
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Distributed Password Recovery Using Hashcat Tool
Zobal, Lukáš ; Veselý, Vladimír (referee) ; Hranický, Radek (advisor)
The aim of this thesis is a distributed solution for password recovery, using hashcat tool. The basis of this solution is password recovery tool Fitcrack, developed during my previous work on TARZAN project. The jobs distribution is done using BOINC platform, which is widely used for volunteer computing in a variety of scientific projects. The outcome of this work is a tool, which uses robust and reliable way of job distribution across a local or the Internet network. On the client side, fast and efficient password recovery process takes place, using OpenCL standard for acceleration of the whole process with the use of GPGPU principle.
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Rainbow Table Module for Password Cracking Systems
Kaprál, Lukáš ; Zobal, Lukáš (referee) ; Hranický, Radek (advisor)
Má závěrečná práce je zaměřena na tvorbu modulu, který bude kompatibilní s již existujícími nástroji pro generování rainbow tables a lámání hesel. Rainbow tables jsou předzpracované vyhledávací tabulky používané v kryprografii pro efektivní prolomení hashovaných hesel tím, že je mapují zpět na jejich původní nešifrovaný text. Modul bude zároveň schopen efektivně uchovávat, generovat datové sady a vyhledávat v rainbow tables. Dále bude tento modul upraven tak, aby mohl fungovat se systémem Fitcrack. Nakonec bude vytvořeno rozhraní, pomocí kterého se bude komunikovat s tímto modulem. V této práci se dozvíte o rainbow tables, co to přesně je a jak fungují, popíši již existující nástroje a software, uvidíte a porozumíte návrhu celého modulu. Poté si můžeme přečíst o celé implementaci a jak je daný modul propojen se systémem Fitcrack. Nakonec provedeme několik experimentů, ve kterých předvedeme, jak tento modul funguje a zaměříme se i na rychlost generování, paměťové nároky a rychlost vyhledávání.
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Association Attack with Hashcat in a Distributed Environment
Wagner, Lukáš ; Veselý, Vladimír (referee) ; Hranický, Radek (advisor)
The Fitcrack project is a distributed system for cracking cryptographic hashes developed at FIT BUT. The Hashcat tool is used to crack passwords on the computational units. This tool added a new attack mode in 2020 called an association attack. This attack is based on knowledge of a likely password, which is extensively modified during the attack. The goal of this work is to design and implement an extension to the Fitcrack project, which enables the use of the association attack and solves its workload distribution in this distributed environment. Association attack requires modification of distribution methods used by other attacks. Such new methods are proposed and implemented. Implementation is later experimentally verified and conclusion is drawn.
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Knowledge of Password Characteristics in Cracking Tasks
Hríbik, Samuel ; Polčák, Libor (referee) ; Hranický, Radek (advisor)
Táto bakalárska práca sa zaoberá metódami, ktorými uživatelia vytvárajú heslá, a tým, aký vplyv môžu mať zásady pre tvorbu hesiel na tieto metódy. Na základe zistených informácií o uživateľských zvyklostiach a často využívaných zásadách navrhuje proces na analýzu a generovanie masiek hesiel s využitím znalostí o vlastnostiach hesiel. Opisuje implementáciu procesu generovania masiek a spôsob, akým je tento proces integrovaný do nástroja na lámanie hesiel Fitcrack ako jeho rozšírenie. Nakoniec obsahuje výsledky experimentov s použitím procesu generovania masiek, ktoré prezentujú funkčnosť tohto rozšírenia v rôznych prípadoch použitia.
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Interactive Tool for Creating Password-Mangling Rules
Mládek, Jiří ; Pluskal, Jan (referee) ; Hranický, Radek (advisor)
The aim of this bachelor thesis was to create an interactive tool for creating password-mangling rules and integrate it into the Fitcrack system. In this thesis, I discuss password-mangling rules which use several available rule functions and can be used to enrich a dictionary attack. The implemented tool also provides a live preview of mangled passwords, allowing the creation of new more efficient dictionaries. The motivation for creating the tool was the current way of creating rules, where existing tools do not offer a graphical user interface and a large selection of rule functions at the same time. The experiments are then used to demonstrate use cases and the benefits of the tool. User testing is also part of the thesis.
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Integration Tests of the Fitcrack System in Selenium
Rucký, Viktor ; Polčák, Libor (referee) ; Hranický, Radek (advisor)
Fitcrack je systém pro distribuované lámání hesel vyvíjený na VUT FIT. Fitcrack je používán hlavně skrz webové rozhraní. Fitcrack je relativně velký projekt, kterému ale chybí sada automatických integračních testů. Selenium je projekt pro automatizované ovládání webových prohlížečů. Tato bakalářská práce má za cíl navrhnout sadu integračních testů, které budou implementované pomocí projektu Selenium. Návrh sady testů je založen na modelu page-object, způsob jak oddělit kód pro interakci s uživatelským rozhraním od testů. Testy jsou implementovány v jazyku Python pomocí frameworku Pytest.
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