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Modular Content Management System in ASP.NET
Michalovič, Miroslav ; Karásek, Jan (referee) ; Malina, Lukáš (advisor)
This bachelor thesis contains a proposal of a content management system, created according to the standards usually required of systems working with content management, these standards are the object of the opening chapter. In this chapter, options of the realization and their advantages are also discussed. The system is realized through ASP.NET, which is a part of a bigger .NET Framework, a platform, which also comprises of some additional technologies, which were used in the project. The technologies used during the application development are discussed in the second chapter. The content management in the proposed application would not be possible without a functional database, which the third chapter describes. A relational database model based on a client-server communication using SQL inquiries was selected for the developed application. The fourth chapter is dedicated to the application creation itself, which is made of a simple interface for the synchronization of clients’ replies to the events of logged users. This chapter also contains a database proposal and a description of the individual application content. The final chapter is dedicated to the security of the project along with the potential risks description and their existing or proposed solutions. The appendices shows the visual part of application and it’s components.
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Network Anomaly Detection
Bartoš, Václav ; Kořenek, Jan (referee) ; Žádník, Martin (advisor)
This work studies systems and methods for anomaly detection in computer networks. At first, basic categories of network security systems and number of methods used for anomaly detection are briefly described. The core of the work is an optimization of the method based on detection of changes in distributions of packet features originally proposed by Lakhina et al. This method is described in detail and two optimizations of it are proposed -- first is focused to speed and memory efficiency, second improves its detection capabilities. Next, a software created to test these optimizations is briefly described and results of experiments on real data with artificially generated and also real anomalies are presented.
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Secure communication in systems using restricted devices
Michálek, Tomáš ; Martinásek, Zdeněk (referee) ; Malina, Lukáš (advisor)
This thesis presents the usability and analysis of cryptographic methods on devices with low computing power and low memory capacity. The thesis describes different methods and shows examples of their usability in practice. According to certain parameters of security methods, such as code size and memory size it is selected and compared symetric ciphers and authentication codes. There are also described some security protocols and possible attacks. The next part includes a comparison of ciphers and chosen candidates are tested on our microcontroller. In the end there are propose, implemented and analyzed security protocols.
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Secure communication in systems using restricted devices
Michálek, Tomáš ; Martinásek, Zdeněk (referee) ; Malina, Lukáš (advisor)
This thesis presents the usability and analysis of cryptographic methods on devices with low computing power and low memory capacity. The thesis describes different methods and shows examples of their usability in practice. According to certain parameters of security methods, such as code size and memory size it is selected and compared symetric ciphers and authentication codes. There are also described some security protocols and possible attacks. The next part includes a comparison of ciphers and chosen candidates are tested on our microcontroller. In the end there are propose, implemented and analyzed security protocols.
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Modular Content Management System in ASP.NET
Michalovič, Miroslav ; Karásek, Jan (referee) ; Malina, Lukáš (advisor)
This bachelor thesis contains a proposal of a content management system, created according to the standards usually required of systems working with content management, these standards are the object of the opening chapter. In this chapter, options of the realization and their advantages are also discussed. The system is realized through ASP.NET, which is a part of a bigger .NET Framework, a platform, which also comprises of some additional technologies, which were used in the project. The technologies used during the application development are discussed in the second chapter. The content management in the proposed application would not be possible without a functional database, which the third chapter describes. A relational database model based on a client-server communication using SQL inquiries was selected for the developed application. The fourth chapter is dedicated to the application creation itself, which is made of a simple interface for the synchronization of clients’ replies to the events of logged users. This chapter also contains a database proposal and a description of the individual application content. The final chapter is dedicated to the security of the project along with the potential risks description and their existing or proposed solutions. The appendices shows the visual part of application and it’s components.
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Network Anomaly Detection
Bartoš, Václav ; Kořenek, Jan (referee) ; Žádník, Martin (advisor)
This work studies systems and methods for anomaly detection in computer networks. At first, basic categories of network security systems and number of methods used for anomaly detection are briefly described. The core of the work is an optimization of the method based on detection of changes in distributions of packet features originally proposed by Lakhina et al. This method is described in detail and two optimizations of it are proposed -- first is focused to speed and memory efficiency, second improves its detection capabilities. Next, a software created to test these optimizations is briefly described and results of experiments on real data with artificially generated and also real anomalies are presented.
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Stateful Processing of Network Flows
Košek, Martin ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
Modern network traffic processing became a challenging task as there are increasing demands on network security devices. Packet-level processing is not sufficient for advanced network traffic analysis and it is necessary to design processing over entire network flows. Stateful processing in software does not offer enough performance for high-speed networks over 10 Gbps and therefore acceleration in hardware should be utilized. Currently there exists no universal platform for stateful processing in hardware and this task has to be implemented individually. Utilization of such platform significantly speed-up development of stateful network applications. This master thesis analyzes all aspects of stateful network processing platform design. Component based architecture increases platform flexibility and ability to optimize for chosen network applications.
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BitCoin Wallet for Windows Phone Platform
Prokop, Tomáš ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
Master's thesis deals with description of a new trading system known as BitCoin. Bitcoin is a unique type of virtual cash in the current world without the influence of large corporations. The system is protected through the use of cryptographic methods that are discussed in detail. The work explains the principles of integrity of transactions exchange transactions and the acquisition of new money through so-called miners. Individual miners services are mediated through software clients including a description of mining. The paper focuses on protocols for communication. It analyzes the different types of software purses for platforms Windows, Linux and Android. Examining reengineering of purses for Android. This document in no small part discusses the implementation own wallets for the Windows Phone platform 8th.
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