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Programming of processors in 32- or 64-bit operation systems
Rášo, Ondřej ; Kyselý, František (referee) ; Balík, Miroslav (advisor)
Main topic of this thesis is Win32 application programming interface and symbolic instructions programming language. It can be divided into four parts. First part sums the basics of 32-bit programming in symbolic instructions language in Windows. Second part describes the Win32 resources for computer intercommunication. Third part presents, describes and comments selected problems in symbolic instructions language.Last part covers a creation of an example application. This application and its parts will be the content of computer exercises in VUT Brno FEEC subject Počítače a jejich periferie.
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Secure peer-to-peer communication system
Eliáš, Luboš ; Koutný, Martin (referee) ; Cvrk, Lubomír (advisor)
The main aim of this master's thesis is to implement a common, secure and peer-to-peer communication system. The system has ability to automatically establish and run a secure end-to-end connection. It has this ability even if a network address translator is in the way to the destination system, without need of any explicit configuration of this translator. The security procedures of this system are in a transparent manner masked from individual applications, which had to solve this challenge in their own way. A responsibility for a security is delegate to an application-independent subsystem working within the core of an operating system. The security of this subsystem is based on capturing the outbound and inbound IP packets and their authentication and encryption. The system was successfully implemented in MS Windows XP operating system, in programming language C++. Transfer rate of communication tunnel in different network bandwidth speeds was measured. Result shows, that in the case of use the system on standard PC sold nowadays is practically no decrease of the transfer rate in comparison to a common channel.
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P2P Networks Blocking
Švajda, Patrik ; Žádník, Martin (referee) ; Tobola, Jiří (advisor)
This bachelor's thesis deals with filtering P2P networks intend for changing data. My work describes layers of ISO/OSI model, which is able to blocking these networks. For Linux describes tools of detecting P2P networks with the aid of data part of packet. Testing proves success of blocking by L7- filter and IPP2P filter.
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Programming of processors in 32- or 64-bit operation systems
Rášo, Ondřej ; Kyselý, František (referee) ; Balík, Miroslav (advisor)
Main topic of this thesis is Win32 application programming interface and symbolic instructions programming language. It can be divided into four parts. First part sums the basics of 32-bit programming in symbolic instructions language in Windows. Second part describes the Win32 resources for computer intercommunication. Third part presents, describes and comments selected problems in symbolic instructions language.Last part covers a creation of an example application. This application and its parts will be the content of computer exercises in VUT Brno FEEC subject Počítače a jejich periferie.
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Secure peer-to-peer communication system
Eliáš, Luboš ; Koutný, Martin (referee) ; Cvrk, Lubomír (advisor)
The main aim of this master's thesis is to implement a common, secure and peer-to-peer communication system. The system has ability to automatically establish and run a secure end-to-end connection. It has this ability even if a network address translator is in the way to the destination system, without need of any explicit configuration of this translator. The security procedures of this system are in a transparent manner masked from individual applications, which had to solve this challenge in their own way. A responsibility for a security is delegate to an application-independent subsystem working within the core of an operating system. The security of this subsystem is based on capturing the outbound and inbound IP packets and their authentication and encryption. The system was successfully implemented in MS Windows XP operating system, in programming language C++. Transfer rate of communication tunnel in different network bandwidth speeds was measured. Result shows, that in the case of use the system on standard PC sold nowadays is practically no decrease of the transfer rate in comparison to a common channel.
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Analysis of digital currency Bitcoin
Huřťák, Petr ; Brixí, Radim (advisor) ; Kalina, Jaroslav (referee)
Bachelor's thesis is focused on digital currency Bitcoin, mainly on Bitcoin transactions and their attributes like speed, fees and safety. Main goals of this thesis are three, analysis of bitcoin buying possibilities in Czech Republic, comparison of Bitcoin transactions with common payment methods like bank transfers, credit card payment or PayPal, and analysis of number of merchants accepting bitcoin in time and discovery of trend from these data. This thesis is divided into theoretical and practical part. In theoretical part there are described basics of cryptography, which are necessary for understanding Bitcoin, and in depth description how Bitcoin works. Practical part is focused on fulfilment of described goals, besides that thesis is also addressing Bitcoin clients and comparison between most popular ones. Contribution of this bachelor's thesis is analysis of bitcoin buying possibilities in Czech Republic, comparing Bitcoin transactions with transactions of standard payment methods in terms of fees and time, and analysis of trend in number of merchants accepting bitcoin as one of the payment method.
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Problems virtual currency - Bitcoin
Matej, Pavel ; Veber, Jaromír (advisor) ; Klíma, Tomáš (referee)
Bachelor's thesis is focused on digital currency Bitcoin, This thesis is trying to bring new coherent view on: how work Blockchain, how is the transaction created and focusing on security methods of transactions even whole block and processes associated with it. The main objective of this thesis is to highlight risks and threats to which Bitcoin is currently facing. Structure of the thesis is divided into theoretical and practical part. In the theoretical section is described the basic principles of Blockchain and a description of how it works in detail transactions. The practical part deals with the fulfillment of the stated objectives, in addition, also focuses on market research and draw conclusions about how expensive it is to dispose of Bitcoin. The contribution of this work is to analyze the weaknesses Bitcoin's architecture. This work describes the problems associated with scaling Bitcoin and hacking methods which could Bitcoin badly damage.
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P2P application security
VAŇÁSEK, Jiří
This bachelor thesis deals with security of P2P applications, that are mainly used for file sharing. It is very important to minimalise the hazard of using these applications, bacause they are being used a lot today. One part of the thesis is a survey of using P2P applications in corporations. The next part is devoted to security scanning of these applications, describing found errors and their elimiation.
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