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Decentralized Autentication System Based on Blockchain
Mračna, Štefan ; Malinka, Kamil (referee) ; Januš, Filip (advisor)
This work studies the effects of the integration of blockchain technologies into authentication systems, specifically biometric authentication systems for unlocking doors. The work analyzes different blockchain and authentication technologies and determines which of these technologies are appropriate for this purpose. The work also compares centralized and decentralized authentication systems. A decentralized authentication system which includes blockchain technologies is then proposed and a simplified version of the system (where individual devices in the system are represented by processes) is implemented. Testing of effectiveness, security, reliability and memory usage is then conducted under different conditions.
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Biometric System Security Using Blockchain Technology
Žiška, Marek ; Drahanský, Martin (referee) ; Malaník, Petr (advisor)
Táto práca analyzuje existujúce protokoly používané na dosiahnutie konsenzu v blockchain technológiách, popisuje koncepty biometrických systémov, identifikuje ich bezpečnostné hrozby, predstavuje existujúce riešenia zabezpečenia biometrických systémov. Na základe týchto zistení navrhuje decentralizovanú verziu biometrického systému, ktorý využíva váhovaný protokol PBFT a blockchain na zlepšenie bezpečnosti ``Feature Extractor'' a ``Matcher'' modulov klasického biometrického systému. Blockchain je charakterizovaný ako systém zaznamenávania informácií, ktorý zaisťuje bezpečnosť, nemennosť a transparentnosť v distribuovanej sieti. Priame využitie blockchainu na zabezpečenie citlivých údajov, akými sú aj biometrické údaje, sa nepredpokladá ako najvhodnejšie využitie, no jeho integrácia v rámci procesov jednotlivých komponentov biometrických systémov sa javí ako dobrá možnosť. Nášmu návrhu sa podarilo zmierniť priame útoky na zabezpečované komponenty a útoky na kanály, ktoré ich spájajú, a na kanál, ktorý spája ``Matcher'' s externou aplikáciou.
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Utilization of Knowledge Systems and Bases for Selection and Evaluation of Domestic Electrical Installations.
Haluza, Miroslav ; Martínek, Zbyněk (referee) ; Gurecký, Jiří (referee) ; Toman, Petr (advisor)
My doctoral thesis deals with use of the sophisticated methods for the selection of technical and economic solution of electrical wiring. This solution is based not only on a price but also on many other criteria such as a comfort, service, durability etc. The focus of the work is a treatise on wiring systems from a global perspective, where it is impossible to use a conventional approach for objective evaluation and selection of the appropriate electrical wiring system (because of the complexity of such systems and their interdependencies). In the four chapter are given information of an energy consumption (the total consumption and household consumption). In this chapter is given also a consumption prediction – especially for households. Following is an overview of possible measures for reducing electricity consumption in households. In the next part of this thesis are solved the knowledge, respectively expert systems for use in an electrical engineering – especially for a suitable tool for the selection and evaluation of households wiring electrical system. The result of this work provides a possible solution for a selection of wiring electrical system for households (focusing on the intelligent wiring) – from a technical and economic point of view and with using an innovative approach. The main contribution of this work is a proposal of the main part of the knowledge base. This base could be as a basis for knowledge, respectively for an evaluating technical and economical solution of an electrical wiring system – the expert system includes also a feedback function of an effectiveness solution, use value, price etc., which would also serve as a knowledge base.
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Classical versus intelligent electrical installation
Haluza, Miroslav ; Brázdil, Vlastimil (referee) ; Macháček, Jan (advisor)
This work topic is development and history of intelligent wiring systems in Czech Republic as well as abroad. The firs paragraphs describe following: intelligent wiring systems, the differences between classic and intelligent wiring systems and consequently is described the intelligent wiring system itself (types, principles, advantages, disadvantages etc.). Detailed description of system Inels follows in the next chapters. This system is supposed to be the fundamental matter of this work and is used in consequent suggestions for intelligent wiring system that is defined at the end of the theoretical part of this work. At the conclusion the economic evaluation of various wiring options and assessment by the multicriteria analysis (MCA) will be provided.
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Biometric System Security Using Blockchain Technology
Žiška, Marek ; Drahanský, Martin (referee) ; Malaník, Petr (advisor)
Táto práca analyzuje existujúce protokoly používané na dosiahnutie konsenzu v blockchain technológiách, popisuje koncepty biometrických systémov, identifikuje ich bezpečnostné hrozby, predstavuje existujúce riešenia zabezpečenia biometrických systémov. Na základe týchto zistení navrhuje decentralizovanú verziu biometrického systému, ktorý využíva váhovaný protokol PBFT a blockchain na zlepšenie bezpečnosti ``Feature Extractor'' a ``Matcher'' modulov klasického biometrického systému. Blockchain je charakterizovaný ako systém zaznamenávania informácií, ktorý zaisťuje bezpečnosť, nemennosť a transparentnosť v distribuovanej sieti. Priame využitie blockchainu na zabezpečenie citlivých údajov, akými sú aj biometrické údaje, sa nepredpokladá ako najvhodnejšie využitie, no jeho integrácia v rámci procesov jednotlivých komponentov biometrických systémov sa javí ako dobrá možnosť. Nášmu návrhu sa podarilo zmierniť priame útoky na zabezpečované komponenty a útoky na kanály, ktoré ich spájajú, a na kanál, ktorý spája ``Matcher'' s externou aplikáciou.
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Decentralized Autentication System Based on Blockchain
Mračna, Štefan ; Malinka, Kamil (referee) ; Januš, Filip (advisor)
This work studies the effects of the integration of blockchain technologies into authentication systems, specifically biometric authentication systems for unlocking doors. The work analyzes different blockchain and authentication technologies and determines which of these technologies are appropriate for this purpose. The work also compares centralized and decentralized authentication systems. A decentralized authentication system which includes blockchain technologies is then proposed and a simplified version of the system (where individual devices in the system are represented by processes) is implemented. Testing of effectiveness, security, reliability and memory usage is then conducted under different conditions.
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Utilization of Knowledge Systems and Bases for Selection and Evaluation of Domestic Electrical Installations.
Haluza, Miroslav ; Martínek, Zbyněk (referee) ; Gurecký, Jiří (referee) ; Toman, Petr (advisor)
My doctoral thesis deals with use of the sophisticated methods for the selection of technical and economic solution of electrical wiring. This solution is based not only on a price but also on many other criteria such as a comfort, service, durability etc. The focus of the work is a treatise on wiring systems from a global perspective, where it is impossible to use a conventional approach for objective evaluation and selection of the appropriate electrical wiring system (because of the complexity of such systems and their interdependencies). In the four chapter are given information of an energy consumption (the total consumption and household consumption). In this chapter is given also a consumption prediction – especially for households. Following is an overview of possible measures for reducing electricity consumption in households. In the next part of this thesis are solved the knowledge, respectively expert systems for use in an electrical engineering – especially for a suitable tool for the selection and evaluation of households wiring electrical system. The result of this work provides a possible solution for a selection of wiring electrical system for households (focusing on the intelligent wiring) – from a technical and economic point of view and with using an innovative approach. The main contribution of this work is a proposal of the main part of the knowledge base. This base could be as a basis for knowledge, respectively for an evaluating technical and economical solution of an electrical wiring system – the expert system includes also a feedback function of an effectiveness solution, use value, price etc., which would also serve as a knowledge base.
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Hospodaření s dešťovou vodou ve městech
Vacková, Michaela
The paper is focused on new approaches of stormwater management in cities, decentralized urban drainage systems and reasons that lead to emergence of these systems. The relationship between them and urban planning. As a part of the paper there is the example, in which the relationships are verified.
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Classical versus intelligent electrical installation
Haluza, Miroslav ; Brázdil, Vlastimil (referee) ; Macháček, Jan (advisor)
This work topic is development and history of intelligent wiring systems in Czech Republic as well as abroad. The firs paragraphs describe following: intelligent wiring systems, the differences between classic and intelligent wiring systems and consequently is described the intelligent wiring system itself (types, principles, advantages, disadvantages etc.). Detailed description of system Inels follows in the next chapters. This system is supposed to be the fundamental matter of this work and is used in consequent suggestions for intelligent wiring system that is defined at the end of the theoretical part of this work. At the conclusion the economic evaluation of various wiring options and assessment by the multicriteria analysis (MCA) will be provided.
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