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Recognition of security issues in LPWA type networks
Shestopalov, Artur ; Pospíšil, Jan (referee) ; Pospíšil, Ondřej (advisor)
The bachelor’s thesis deals with the issue of recognizing security incidents in LPWA (LowPower Wide Area) networks. Thesis contains information about the most used LPWA technologies, examines their security architecture and possible threats. Part of the work is a detailed description of LoRaWAN protocols, including architecture, possible attacks, distinguishing security architecture in the new and old versions. Work contains implementation of two security incident scenarios and their subsequent detection: jamming and gateway disconnection. As part of the detection, was created a web application that is able to detect real-time security incidents based on the average value of RSSI (Received Signal Strength Indicator) and the expected time of message transmission.
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Recognition of security issues in LPWA type networks
Shestopalov, Artur ; Pospíšil, Jan (referee) ; Pospíšil, Ondřej (advisor)
The bachelor’s thesis deals with the issue of recognizing security incidents in LPWA (LowPower Wide Area) networks. Thesis contains information about the most used LPWA technologies, examines their security architecture and possible threats. Part of the work is a detailed description of LoRaWAN protocols, including architecture, possible attacks, distinguishing security architecture in the new and old versions. Work contains implementation of two security incident scenarios and their subsequent detection: jamming and gateway disconnection. As part of the detection, was created a web application that is able to detect real-time security incidents based on the average value of RSSI (Received Signal Strength Indicator) and the expected time of message transmission.
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The Czechoslovak desk of the Radio Free Europe: Its development and impact on the Czechoslovak history
Tomek, Prokop ; Rychlík, Jan (advisor) ; Blažek, Petr (referee) ; Trapl, Miloš (referee)
The disertation is focused on development and importance of the Czechoslovak desk of the Radio Free Europe in period between 1950 and 1994. This broadcasting have gained in time of strong censorship significant and till now unresearched importance. In February 1948 the Communist party took power in the Czechoslovakia. After that Czech and Slovak democratic politicians had left country to the West. They wanted to break the isolation of people living behind the Iron Curtain and promote restoration of democracy in their homeland. In 1949 was in the USA established the National Committee for Free Europe as fomally independent citizens association. As its most known activity had became the Radio Free Europe (RFE). This radio station had became an important tool for political strugle between two blocks in time of the Cold War. The basic qestion is what real position RFE broadcasting have reached in this struggle. The estabilishing of foreign broadcasting to the Czechoslovakia was very difficult task. RFE started its activity as exiles platform for purpose of liberation the Czechoslovakia from rule of the Communistic Party regime. The programming position of the RFE was in reality influented by american politicians and was depending on changing global political conditions as well. The unique position of...
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