National Repository of Grey Literature 163 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Advanced network device scanner
Procházka, Michal ; Blažek, Petr (referee) ; Holasová, Eva (advisor)
The master thesis focuses on problem of identifying device types on a local network. The work explores current methods for device recognition on local networks and examines a survey of open-source tools capable of identifying these devices or gathering additional supplementary information. The discovered tools are compared based on several criteria. Furthermore, a laboratory environment is created for testing the identified tools as well as for testing own implementation. Subsequently, this thesis presents a proposal for the own implementation of a device identification method and the retrieval of advanced information about these devices. The main part of the work focuses on describing several possible methods of device identification, including practical examples. Scripting of the practical examples is implemented in Python or through the command line. Based on the outlined approaches, the thesis presents a list of all recognized devices from the experimental setup. Finally, the methods are compared in terms of network utilization during scanning.
Identifying Anomalies in Industrial Networks: A Proposed Testbed for Experimental Evaluation
Kuchar, Karel ; Blazek, Petr
Not only because of the convergence of InformationTechnology (IT) and Operational Technology (OT) networks, thepass-through network environment needs to be monitored andadequate security implemented. Due to the occurrence of differenttypes of anomalies and their inconsistency in the literature,three main types of anomalies have been identified in this paperand a testbed has been proposed to serve for further experimentaltesting. This testbed was created using an anemometer and inthe current state using an accelerometer. From the results sofar, a correlation between the normal condition and the inducedoperational anomaly can be observed.
Security verification tool for industrial and energy equipments
Sagindykova, Anel ; Kuchař, Karel (referee) ; Blažek, Petr (advisor)
Cílem této práce je analyzovat různé vyhledávače a vybrat ty nejvhodnější pro vytvoření nástroje k testování průmyslových a energetických zařízení z pohledu bezpečnosti. Bylo provedeno porovnání mezi Shodan, ZoomEye, Nexpose, Censys a BinaryEdge. Tyto vyhledávače byly porovnávány podle různých kritérií, například výkonnosti a jejich dalších veřejně dostupných informací. Jako nejvhodnější byly vybrány Shodan a ZoomEye a pomocí těchto vyhledavačů byla vytvořena webová aplikace. Tato aplikace je schopna načítat výsledky vyhledávání ze serverů pomocí jejich rozhraní API a je schopna je ukládat do databáze. Součástí práce je popis průmyslových a energetických protokolů, sítí a jejich bezpečnostních prvků. V rámci práce byl také popis několika nejznámějších útoků na tyto sítě. Posledním cílem práce je provést testování a evaluaci realizovaného nástroje na minimálně dvou zařízeních.
Shrinkage prediction of graphitic cast iron
Blažek, Petr ; Kaňa, Václav (referee) ; Krutiš, Vladimír (advisor)
The thesis deals with the shrinakage prediction of graphitic cast iron. In the theoretical part, volume changes and influences on graphene expansion are described in detail. Furthermore, pouring methods and simulation parameters related to schrinkage and pouring are broken down in the work. In the practical part, thermophysical data and metallurgical quality of the metal are optimized in the simulation. For the specified casting, the risers were designed according to theoretical methods and the simulation optimization module. Using optimized risers, it was possible to save the volume of metal per raw casting by about 25 %. For castings from the soft bentonite mold and from the mold from the GEOPOL® (a self hardening mixture), the volume was measured using a 3D scan. When they were compared, an uneven increase in the volume of the bentonite mould casting was 1.2 %. The increase was due to the strain of the mold in the graphite expansion.
IT/OT modular honeypot
Nečas, Martin ; Fujdiak, Radek (referee) ; Blažek, Petr (advisor)
V bakalářské práci byl realizován modulární a škálovatelný systém honeypotů zaměřený na IT a OT. Cílem bylo navrhnout a implementovat systém, který umožní snadné přidávání modulů reprezentujících komunikační protokoly a virtuální zařízení a silně zdůrazňuje modularitu. Honeypoty jsou nasazeny v kontejnerech a systém aktivně monitoruje komunikaci mezi těmito kontejnery a útočníky. Všechny komunikační aktivity jsou uloženy v centralizovaném logu pro důkladnou analýzu a monitorování.
Automated control of family house heating
Slouka, Petr ; Kuchař, Karel (referee) ; Blažek, Petr (advisor)
The thesis deals with the design and implementation of automated control of family house heating. The system is based on programmable units whose basic elements are devices based on ESP32 or ESP8266 programmable chips. The main part is the design of the system and the implementation of its individual parts such as the web application and individual sensors. Furthermore, the thesis deals with the communication between the individual parts, its analysis and the analysis of the battery life of the individual devices. The last chapter consists of instructions for installation and start-up of the whole system.
Advanced network device scanner
Procházka, Michal ; Blažek, Petr (referee) ; Holasová, Eva (advisor)
The master thesis focuses on problem of identifying device types on a local network. The work explores current methods for device recognition on local networks and examines a survey of open-source tools capable of identifying these devices or gathering additional supplementary information. The discovered tools are compared based on several criteria. Furthermore, a laboratory environment is created for testing the identified tools as well as for testing own implementation. Subsequently, this thesis presents a proposal for the own implementation of a device identification method and the retrieval of advanced information about these devices. The main part of the work focuses on describing several possible methods of device identification, including practical examples. Scripting of the practical examples is implemented in Python or through the command line. Based on the outlined approaches, the thesis presents a list of all recognized devices from the experimental setup. Finally, the methods are compared in terms of network utilization during scanning.
Network probe module for energy protocols analysis
Nguyen, Minh Hien ; Burda, Karel (referee) ; Blažek, Petr (advisor)
Energy protocols are already increasingly entering our daily lives. With the development of smart grids, meters and appliances, more and more customers are demanding faster and more accurate consumption readings, as well as efficient information about the status of the energy network and control over energy use. The theoretical part of this master's thesis focuses primarily on the description of energy standards and protocols (IEC 60870, IEC 61850, DLMS and DNP3). Before the design of the analyzer, the network probe was first tested for load and stress. Once the criteria were met a DLMS energy protocol analysis module was created. The output is a set of statistics and values and can be used as a basis for machine learning and artificial intelligence. Furthermore, the thesis described the possible attacks on the energy protocol and proposes suitable detection methods based on the Suricata module.
Energy testbed security
Zatloukal, Zdeněk ; Blažek, Petr (referee) ; Bohačík, Antonín (advisor)
The topic of the thesis is focused on the energy testbed security. The main objective of the work is the implementation of secure data communication of IEC 60870-5-104 protocol in the transmission system testbed according to the standard ČSN EN 62351. Furthermore, a comparison of secured and unsecured communication is included with testing of selected vulnerabilities. Subsequently, control functions related to testbed security were implemented in the control interface.
Creating an industrial scenario using WinCC Unified
Šotola, Bohuslav ; Blažek, Petr (referee) ; Pospíšil, Ondřej (advisor)
This bachelor thesis is devoted to the Creation of industrial scenario by means of using WinCC Unified. WinCC Unified is a visualization tool supporting remote access via the web without the necessity to install softwares. The urgency for using this technology results in particular from the introduction of digitization and the associated simplification of industrial processes. The issue of remote communication is discussed at first which is followed by a description of the basic functions of WinCC Unified. Then various communication scenarios are processed which are the main target of the bachelor’s thesis together with the creation of the HMI library. The work is ended by the topic of analysis of communication load between HMI and PLC depending on the number of animated objects on the HMI screen.

National Repository of Grey Literature : 163 records found   1 - 10nextend  jump to record:
See also: similar author names
10 BLAŽEK, Pavel
36 BLAŽEK, Petr
36 Blazek, Petr
10 Blažek, Pavel
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