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Cyber security tester of elements used in industrial networks and energy industry
Březina, Jiří ; Mlýnek, Petr (referee) ; Lieskovan, Tomáš (advisor)
This thesis deals with the issue of security analysis of DLMS/COSEM protocol and exploitation of these vulnerabilities in real Smart Grid environment. Thesis starts with a description of power grids in the past and present, introducing the environment of modern power grids and the smart grid elements used in it this power grids to reader. This is followed by a detailed discussion of the communication protocols that operate in these networks, beginning from the older and more industrially based Modbus protocol to the DLMS/COSEM protocol which is most used today and his various components and security. The most common current models of link vulnerability attacks are also summarized in the paper. The thesis aims to implement a tester that tests the security of smart grid elements, mainly on the vulnerabilities described in the thesis. The tester primarily focuses on the vulnerability called replay attack and evaluating the execution of this attack in a laboratory environment.
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UWB Automated Testing Tool
Charvát, Jan ; Juráň, Radovan (referee) ; Mlýnek, Petr (advisor)
This thesis deals with the process of automating the testing of wireless locators. These devices use the UWB system, which is introduced in the theoretical part of this thesis. Furthermore, the topic of the testing process and the possibilities of its automation are discussed. The practical part of this thesis is devoted to the design and construction of an automated test fixture for UWB locators, both hardware and software part.
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Cyber security for power engineering
Sedláková, Dáša ; Kohout, David (referee) ; Mlýnek, Petr (advisor)
Due to the IT and OT networks convergence, industrial systems are becoming vulnerable to different forms of security threats including rapidly growing cyber-attacks. Thesis is focused on an analysis of security recommendations in IEC 62351, vulnerability testing of industrial communication protocols (e.g., IEC 61850) and mitigations proposal. An ATT&CK framework for ICS was chosen to become a methodology base for vulnerability testing. ATT&CK tactics and techniques were used to practically test vulnerability scans, SMV time synchronization, GOOSE spoofing, MMS Man in the Middle and ICMP Flood attacks. Attacks tested were evaluated with a risk analysis. Subsequently, mitigation measures were proposed on several levels (OT, IT, perimeter and physical level).
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Simulations of impact of security requirements on industrial system performance
Loskot, Michal ; Blažek, Petr (referee) ; Mlýnek, Petr (advisor)
Safety and security is always a hot topic in the world of information security, but only a few solve how much cryptographic algorithms affect the performance of systems. Newer longer-key algorithms may provide more security, but it takes longer to encrypt data, that is, they may contain extra bits, which increases transfer time and uses more memory to store additional information. This bachelor thesis is focused on the analysis of the impact of the security requirements of the ANSI/ISA-62443 standard on the performance of industrial systems. Communication is simulated in which cryptographic algorithms AES and SHA were used. These simulations are carried out in the open source simulation tool TTool, which enables embedded systems, hardware and software modeling, and simple simulations directly from UML and SysML diagrams.
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Smart meter security
Fitere, Ivana ; Fujdiak, Radek (referee) ; Mlýnek, Petr (advisor)
Nowadays, electronization, digitization and data transmission are considered as a standard part of our lives. Security is especially important during data transfer and data processing. This bachelor thesis deals with intelligent metering in power engineering. The~work is based on technical, operational, safety and economic aspects of smart meters rollout. The~first part deals with the~analysis of algorithms, norms and standards for smart metering. The work continues with a description of~the~current state of~smart metering in the Czech and Slovak Republics. The next chapters are devoted to~the~creation of an evaluation model, two different security scenarios, their analysis and evaluation based on net present value (NPV). Finally, the results of a real test of GSM communication at two different security levels. Models are displayed in the attached XLS file.
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PLC for Smart Metering
Houser, Milan ; Rusz, Martin (referee) ; Mlýnek, Petr (advisor)
This bachelor’s thesis deals with the technology communicating over the electrical power grid, PowerLine Communication (PLC). It solves the principles, possibilities of use, ad-vantages and disadvantages of this technology. The basic issues of communication of PLC networks, Smart Grid and Smart Metering on narrowband PLCs with multiple carriers on the PRIME and G3 standard are discussed. At the end of the work there are measurements on Atmel and Devolo devices. A laboratory task was also created here, which deals with the measurement of narrowband transmission.
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Influence of physical parameters and age of power lines on PCL/BPL performance and reliability
Janás, Jan ; Mlýnek, Petr (referee) ; Benešl, Lukáš (advisor)
With the increasing demands on data transmission, other ways are being sought than standard data transmission via conventional data cables. One of these ways is communication over power lines - PLC or BPL technology. This method of communication is widely used in households, energy, industry and other fields where it is used for data collection, communication, or control of various devices. Before considering the use of BPL technology, it is first necessary to evaluate the considered power line to see if it is suitable and technically competent for this purpose.
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DLMS security suite implementation
Kohout, David ; Sláčik, Ján (referee) ; Mlýnek, Petr (advisor)
This thesis is focused on smart meters cyber security using DLMS Security Suite standard. Security is more important every day and DLMS specifies multiple methods of authentication and message encryption which is defined in Security Suites. For message creation there are multiple possible formats that can be used. For a better understanding all formats are analysed and compared using a specific example. Main part of this work is about making a testing application called VUT DLMS Tester which is used for testing this standard for real usage in distribution network. Whole development is cooperated with distribution companies and smart meter manufacturers. Application also implements higher levels of security which DLMS specifies. This application is used for testing multiple scenarios regarding security impact on data volume.
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Smart Metering demonstration demo
Gregor, Filip ; Musil, Petr (referee) ; Mlýnek, Petr (advisor)
The thesis deals with PLC technology and issues with Smart Metering. In the theoretical part, a principle of technology's functionality and its advantages and disadvantages were described. In the experimental part methodology of data concentrator and electric meters was designed. In addition, extensive testing set according to capturing of DLMS communication, link quality influencing, reading registers of meters were realized. In the second experimental part limits of communications between broadband BPL modems were detected by the power line communication hardware channel emulator. Measurement of throughput, latency, frame loss passed off according to RCF 2544, RFC 6349 recommendation and according to the methodology of TCP Throughput In the last part, two laboratory exercises were created, first one deals with Smart Metering system and communication between the data concentrator and electric meters and the second one deals with communication among broadband BPL modems not only for Smart Metering purposes.
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Smart Home
Konstantinov, Glib ; Musil, Petr (referee) ; Mlýnek, Petr (advisor)
The bachelor’s thesis deals with the analysis of intelligent devices and the possibilities of their usage in the household. Furthermore, the possibilities of using electricity from a photovoltaic power station and their comparison in terms of financial savings and efficiency of use are described. Moreover, in the theoretical part, a smart metering is described and methods of monitoring electricity consumption from classic electricity meters are presented. The practical part focuses on measuring the consumption of electricity by home appliances using a smart plug with the aim of their categorization, measuring the quality of electricity using a quality monitor MEg44PAN. The output of the bachelor thesis is the visualization of ways how intelligent elements can be implemented into existing buildings, smart homes and various combinations of appliances and resources.
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