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Cryptographic currency Bitcoin
ALEŠ, Petr
The bachelor thesis deals with cryptographic currency Bitcoin. It describes the origin, development and current state of the currency. It also outlines the basic principles on which the currency works from a technical standpoint and examines the main advantages and disadvantages of the system compared to the classical currencies. The practical part discusses the issue of security and anonymity in the system. The questionnaire identifies the current state of Bitcon awareness and what features are considered to be the greatest disadvantages from a user perspective. This is followed by an analysis of potential system security intrusions, along with an analysis of several actually performed successful attacks.
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Activity Alarm for Cryptocurrency Blockchains
Vokráčko, Lukáš ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
Cryptocurrencies are becoming popular and the demand for monitoring transactions inside them increases alongside with it. In this thesis, I describe few of the most widespread cryptocurrencies built on top of a blockchain and how to obtain information of their transactions in order to raise alarms. I discuss existing solutions and describe application Cryptoalarm designed for monitoring transactions involving specific addresses in order to raise alarms. Cryptoalarm scans blockchains of cryptocurrencies such as Bitcoin, Bitcoin Cash, Litecoin, Zcash, Dash, Ethereum and raises alarms about address activities in real-time.
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Bitcoin - history, present, and prognoses
CHVOSTOVÁ, Petra
The aim of this thesis is to familiarize the reader with the problematics of the theoretical background of cryptocurrencies from the historical perspective, focusing on the concepts of B-money and Bit gold, which were the basis for the creation of Bitcoin. The main part is devoted to this decentralized cryptocurrency called Bitcoin. It introduces Bitcoin's main milestones, the Bitcoin Foundation, the functioning system itself, and eventually Bitcoin's prospects for the future. The aim of the second part of this thesis is to develop a simple and clear system for selecting a wallet as the storage of bitcoins. What should be decided by a person who considers holding his own bitcoins. Here is used a compairing method of selected criterias. Criterias are compared based on the prerequisite that the priority for selection is mainly the bitcoin wallet. For the idea of how this wallet looks and works, the practical part also includes a sample of two selected wallets, based on the comparison of criterias, and the transfer of one dollar between them. The aim of this bachelor thesis is to process the comparation of selection procedur for use by ordinary users.
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Cash Flow Forecasting for Financial Management
Potůček, Aleš ; Marek, Petr (advisor) ; Petriashvili, Aleksandre (referee)
The aim of the thesis is firstly to provide a definition of cash management in global corporations, secondly to analyse and assess various methods of cash forecasting. The first part of the thesis is dedicated to describing the nature of cash management and currently available tools for more effective and efficient financial management. In the following part, theoretical methods of cash forecasting are introduced, the best of which are subsequently applied on a model company through creation of a simplified cash budget. The main objective of the thesis is to describe cash management, analyse different cash forecasting methods, and demonstrate their qualities on a model exercise.
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M-commerce as a new purchasing phenomenon
Dlouhá, Markéta ; Očko, Petr (advisor) ; Lipková, Helena (referee)
(in English): Thesis deals with the phenomenon of m-commerce. History section briefly describes the evolution and significant moments for further development of this segment and its subsequent adaptation. It also discusses the types of transactions that are carried out through mobile devices and also about technologies that allow for a gradual transformation of these devices into multifunctional objects. The fourth chapter deals with the evaluation of practical research, which was carried out by me. The research was focused on the typology of purchases that are realized by Czech users through their mobile devices (smartphones and tablets) in relation to mobile smartphone platform, which they own.
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Pay Cards and Their Utilization in The Czech Republic
Rašková, Gabriela ; Steininger, Michal (advisor) ; Pavel, Pavel (referee)
The goal of my bachelor work is the analysis of utilization of pay cards in the Czech Republic with the aim to identify the most advantageous product for a client. The partial goal of the work is general characterization of pay cards. The work is divided into two principal parts.
The first part is a literary exploration of history and evolution of pay cards in the world and in the Czech Republic. In this part there is also a general characteristic of cards, definition of their types according to different criteria and options for their use.
The second part deals with the task of analysing utilization of pay cards in the Czech Republic to eventually find the best product for predefined clientele. To attain this goal, questionnaires were distributed. Acquired data were transferred into graphs, tables and short commentaries. Lastly, the questionnaire outcome, from which was determined the target age group (age group 15-26 years) and specific orientation for the following comparison of chosen pay cards.
We can conclude from this analysis, that for the age group 15-26 years is the most advantageous product the pay card form UniCredit Bank that belongs to U konto pro mladé. This pay card allows unlimited withdrawals from ATMs in the whole Czech Republic and in foreign countries for free. Moreover, this debit card is designed for all young people between 15-26, because you do not need to produce student´s certificate, as required by other banks.
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Increasing Business Performance of Online Store
Svoboda, Radek ; Weirich, Pavel (referee) ; Řešetková, Dagmar (advisor)
The bachelor thesis describes increasing business performance of online store on URL www.vytvarny-shop.cz. Increasing business performance of online store is achieved by SEO and by implementation of additional modules for online store. The starting point for this thesis is theoretical background which describes the issue. The analytical part of the thesis draws on the theoretical part and verifies whether the online store is in conditions which are consistent with standards and methodologies listed. The practical part of the work proposes and implements changes, which have been based on the analytical part and evaluated as desired within a stated budget. Bachelor thesis results in the economic evaluation of the conducted changes and provides a comprehensive view of the success of work and the modifications in financial sense.
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Bitcoin Mining Acceleration
Novotný, Jan ; Veselý, Vladimír (referee) ; Kajan, Michal (advisor)
This master's thesis deals with virtual currency called Bitcoin. It describes the functioning of the currency of technical perspective especially the implementation of the transaction, the way of its validation and ensuring the integrity by using cryptographic functions. Furthermore, it describes the principle of the Bitcoin creation, particularly mining method called pooled mining. The thesis also describes the communication protocols and design of architecture to acceleration of the bitcoin mining. Finally, there are described tests, assessment and proposals for the continuation of work.
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USB miltimeter with microprocessor
Samek, Martin ; Kolka, Zdeněk (referee) ; Kovář, Jan (advisor)
Topic of my terminal labour is a proposion of multimeter and its resulting connection by the help of bus USB. When proposing the multimeter there was a tendency to use a minimal number of component parts to conserve a good protection against a bad usage in application. The most widespread busbar USB is used for connection of the multimeter and a computer. Standard HID is used for communication, for that it is not neccessary to install any system drivers.
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Portal of the universal access control protocol
Čepelák, Tomáš ; Ležák, Petr (referee) ; Burda, Karel (advisor)
The paper focuses on the issue of access control. It presents an universal bilateral protocol of access control of ACP. The paper describes the messages and its sequences that AC portals uses for communication. It describes the functions and features of the modules from which the portal is composed. The paper suggests the concept of a modular AC portal solutions including the design of basic modules. It also outlines possible test scenarios. Under this proposal is generated functional AC portal on the .NET Framework platform using the C\# programming language. The portal provides access to local assets or to the assets on other computers in the local network. Created application is tested according to the scenarios proposed in both the network version and the local version of the AC portal. Test results are objectively evaluated and commented.
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