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Automation of MitM Attack on WiFi Networks
Vondráček, Martin ; Lichtner, Ondrej (referee) ; Pluskal, Jan (advisor)
Tato bakalářská práce se zaměřuje na výzkum v oblasti bezpečnosti bezdrátových sítí. Práce přináší studii široce využívaných síťových technologií a principů zajištění bezpečnosti bezdrátových sítí. Analyzované technologie a způsoby zabezpečení trpí slabinami, které mohou být zneužity k provedení útoku MitM . Práce zahrnuje přehled dostupných nástrojů zaměřených na využití jednotlivých slabin. Výsledkem této práce je balíček wifimitm a CLI nástroj, oba implementované v jazyce Python. Balíček poskytuje funkcionalitu pro automatizovaný útok MitM a může být použit jako součást dalšího software. Nástroj wifimitmcli je schopen úspěšného provedení plně automatizovaného útoku bez jakéhokoli zásahu útočící osoby. Tento výzkum nachází využití v oblasti automatizovaných penetračních testů a forenzního vyšetřování.
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Modern trends in Wi-Fi IEEE 802.11 networks security
Lieskovan, Tomáš ; Škorpil, Vladislav (referee) ; Endrle, Pavel (advisor)
This work treats the matters of wireless networks, Wi-Fi. The paper describes the various principles of coding, such as WEP, WPA and WPA2. At first the WEP security method is analyzed with the view of the fact that it doesn´t meet contemporary safety requirements, further its successor WPA, namely TKIP and AES authentication methods, and last but not least WPA2 which nowadays serve as a safety standard. The work assesses the safety risks of individual security methods and makes several recommendations to achieve maximum security for wireless networks. In the work a commercially available hardware and for free dissemination available software (Open Source) are used.
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Welding of pantograph parts according to standard ISO 15085
Ondříšek, Jan ; Daněk, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The aim of this project is to examine the welding of the upper arm of the current collector - the pantograph of the electric locomotive according the the CSN EN 15085 norm. The first part of this thesis dealt with the elaboration of all needed WPS and with the proposal of the current preparation that is going to be realized. The experimental part dealt with the practical execution of the welding as defined in the first part. The macrostructure of weldings and the process of hardening have been evaluated based on the welding samples.
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Design of flat pallet for automatic parking garage
Osmík, Jiří ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
Design of flat pallet for automatic parking garage. Parking and description of automatic parking systems. Welding and weldability of materials. Electric arc welding and welding by melting electrode in protective gas by MIG/MAG method, welding instruments. Design of parking palette calculation and calculation this palette by MKP method. Process of drawing documentation for parking palette. Design of welding process and WPS. Description of annealing and zinc coating. Economic-technical analysis of palette for automatic parking system production.
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Current trends in the security of Wi-Fi IEEE 802.11 networks
Blažek, Ondřej ; Škorpil, Vladislav (referee) ; Endrle, Pavel (advisor)
This work describes security options of 802.11 standard. Principle of WEP algorithm is described here, problem with his inicialization vector which leads to a statistical attack and revelation of his secret key. Moreover other principles of algorithms such as WPA, WPA2 are explained here along with a practical demonstration of bruteforce attack in a practical part of the thesis. Also the influence of encryption on network throughput is tested here using tool Iperf.
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Welding of the sanitary gully
Skalník, Vít ; Vaněk, Mojmír (referee) ; Kubíček, Jaroslav (advisor)
The aim of this paper is to plan out and realize an optimalization for the welding process of parts of a sanitary gully. Problematics during the welding process of the aforementioned parts together with the usage of welding fixture were explained. On the basis of characteristic signs of welding, an application of other methods was evaluated and the optimal option for the welding process was chosen. During the selection process, hygienic regulations of a non-state funded organization EHEDG (European Hygienic Engineering and Design Group) were taken into account. Furthermore, suggestions for adjustments of the welding process of the forefront of the gully were analyzed. The next step was the realization of the chosen plan and its testing. Part of the process was the implementation of a technological procedure and execution of WPS (Welding Procedure Specification). The end of this paper considers the tecnological-economic contributions of the changed in the procedure.
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Welding characteristic of source Omicron Gama 160
Koudela, Michal ; Hála, Michal (referee) ; Kubíček, Jaroslav (advisor)
This bachelor’s thesis deals with the welding properties of the Omicron Gama 160 inverter power supply. The thesis is divided into the theoretical and the experimental parts; the theoretical part deals with the electric arc and the division and description of welding power supplies, especially the Omicron Gama 160. In addition it describes the issues of the selection of suitable electrode and welding parameters and the definitions of the most frequent welding defects including the procedures to prevent them. The second part consists of the experimental verification of the suitable electrode and welding parameters selection. On the basis of the experiment there were elaborated the welding procedure specifications (WPS). The experiment verified that the Omicron Gama 160 power supply is a machine with good price/performance ratio, suitable e. g. for assembly and welding works in a home workshop.
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Welding head of the longwall shearer
Adam, Karel ; Sigmund, Marian (referee) ; Kubíček, Jaroslav (advisor)
The aim of this bachelor thesis is to describe the structure and purpose of the longwall shearer drum to descriebe the technological process and to design the technology. Shearer heads are made by welding, MAG method with a protective atmosphere of CORGON 18 (18% CO2 + Ar) was selected. Increasing the strength of the knife holders, made from steel 15 230.3 to 1600MPa and welding to the helical segment of S355J2 + N steel, these clamps cracked cold. An error has been detected by reviewing the entire process and performing calculations. The preheating temperature was too low and was therefore increased to 270 ° C along with the stay for 2 hours at this temperature. Part of the thesis is a sample of the test weld of the rupture holder.
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Implementation of the WPS Service
Maďarka, Dušan ; Peringer, Petr (referee) ; Hrubý, Martin (advisor)
The aim of this diploma thesis was to design and implement web mapping service Web Processing Service. The purpose of this service is to provide geospatial oriented calculations on the internet. Introduction part is dedicated to analysis of existing mapping services implementations and defined standards. Thereafter conclusion was drawn and the service was implemented, with respect to computing system efficiency, pluggable design and simplicity of integration in client applications. The interface for work with geographic information system GRASS GIS is also part of the implemented service and it brings the possibility to use the tool from service. The last chapter describes the testing of implemented service in term of functional and performance tests.
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