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Certification authority
Herinek, Denis ; Sikora, Marek (referee) ; Zeman, Václav (advisor)
There is a lot of available services on the internet those need to be more secured and trusted. Public key infrastructure is used in sectors where are higher expectations in case of authentication, integrity and confidentality. It is almost impossible to imagine how internet banking or electronic signatures of important documents would work without PKI. There is a lot of open-source realisations of PKI created by users. Digital certificates as a part of PKI are issued by certificate authorities. This diploma thesis consists of open- source realisation of certificate authority and timestamping authority to demonstrate services which they provide.
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Možnosti implementace elektronického podpisu při víceúrovňové komunikaci v informačním systému
ŘEŘICHA, Jakub
This bachelor thesis deals with the use of the electronic signature for signing electronic documents in corporate practice. The theoretical part of the bachelor thesis introduces the problematics of electronic signature from the point of view of the new legislation of the European Union and the Czech Republic, outlines current technical possibilities and describes individual types of electronic signature. In the analytical part of the thesis, an overview of all evaluated means of the electronic signature was prepared, listing main advantages and disadvantages and their suitability for the communication levels given by the company information system. In addition, the thesis is focused on the mapping of current means and needs of electronic signature in the processing of documents in electronic form in the company information system environment. Further in the thesis a solution for identified needs of the company is also designed and this solution is demonstrated in the form of proof-of-concept.
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Solution for registration of sales
Rolli, Andreas ; Palovská, Helena (advisor) ; Manda, Libor (referee)
This thesis deals with a comparison and an evaluation of chosen solutions or products/services for registration of sales. For registration of sales were selected 8 solutions which are evaluated by the method of multi-criteria evaluation (15 criterions) and the output is one number in a range from 1 to 10 which determines quality and value of the solution. The selected solutions cover all the types from simple SW applications to the POS systems. Accomplishment of the objective is beneficial, as the comparisons and evaluations are independent in this thesis and also because the web portals based on comparisons of solutions for registration of sales focus on earnings. The second part of this thesis deals with a creation of an exemplary software application for registration of sales. The application is programmed in C# programming language and Microsoft Visual Studio 2013 development environment. The application sends data to the system of registration of sales and receives a response (fiscalization). The whole communication takes place in a non-production environment known as Playground, which is intended for developers. A part of the attachment of this thesis is a set of source codes which developers can use for their POS application or system. A benefit from the exemplary application is a completion of blank spaces which were not previously filled by Financial Authority. Financial Authority only published a technical specification which is only an interpretation of the law.
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The possibilities of using electronic archiving in accounting
Muziková, Klára ; Mejzlík, Ladislav (advisor) ; Hora, Michal (referee)
This diploma thesis deals with an electronic (digital) archiving issue and its using in the financial accounting and general company matters. The thesis is divided into two main parts - theoretical and practical. The theoretical part includes the legislative framework in the archiving theory, after that there is an analysis of means for the internal and external communication in companies. At the end of the theoretical part is contained an archiving standardization, archiving strategies and some products and solutions to a trustworthy electronic archiving in organizations. The practical part is based on the author's survey about using the electronic archiving in the Czech Republic. The procedure of the survey was performed by sending of an electronic questionnaire. At first, the structure of respondents is pursued, in the second part follows the analysis of the reached outcome.
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Cryptocurrency
Šelinga, Martin ; Komosný, Dan (referee) ; Zeman, Václav (advisor)
In this bachelor thesis are analyzed elementary cryptographical techniques which are used among others also in cryptocurrencies. In second part is analysis and detail description of most used cryptocurrencies. In last part is description of simple web application which will demonstrate function of cryptocurrencies.
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E-Government in Czech tax administration
Plaček, Tomáš ; Rašovský, Evžen (referee) ; Kopřiva, Jan (advisor)
This bachelor’s thesis deals with concept „e-Government“. Explains the basic principles of electronic communication with public service, concerns with the security of informations, which are delivered to offices via internet and explains the access possibility for companies and also for citizens. This work describes services, which e-Government offers above all in resort of tax administration and tax institutions. Part of this thesis is a research of using e-Government services among companies.
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Visualisation of asymetric cryptography
Kužela, Jan ; Rosenberg, Martin (referee) ; Ležák, Petr (advisor)
Bachelor thesis is considered in cryptographic protocols, especially asymetrical. The purpose of the thesis is to create an aplication for visualisation of mathematical operations in asymetrical cryptosystems. The emphasis is put on the asymetrical cryptosystems Diffie-Hellman, DSA and RSA. There is a summary of history of cryptography in the theoretical part as well as modern cryphographical systems used for protection of digital data. Practical part shows the design and creation of the application and implementation in the programming language Java and JavaFX. The output is the application, which visualizes protocols DH, DSA and RSA. Systems are visualized with the input data from the user or with randomly generated data. Application shows the calculations made by protocols step by step.
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Secure access to information panel
Procházka, Jaroslav ; Malina, Lukáš (referee) ; Sobotka, Jiří (advisor)
My Thesis deals with secure access to the information panel, which deals with methods of communication of information panels with control unit. There are described the communication interface. The Thesis is focused mainly on communication protocols and security methods of transmission of information. The Thesis deals with the Diffie-Hellman Protocol, which is detailed discussed. There is explained the nature of the attack, the „Man in the middle“ on the Diffie-Hellman Protocol. A method of defense against attack by the „Man in the middle“ by using a digital signature in the Diffie-Hellman Protocol over an unsecured communication channel. In conclusion, the concept is designed for secure communications between the display panel and the control Terminal. There are described in detail the three proposed simulation in the programme.
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Electronic Registry for Local Authority
Stránský, Karel ; Burget, Radek (referee) ; Rychlý, Marek (advisor)
Bachelor thesis "Electronic registry for local authority" is focused on usage of electronic registries for electronic communication between citizens and public authority. The first part describes the legislative page incidental with e-registries, principles of their functionality, and important requierements which are set on e-registiries. Furthermore elementary electronic signature's informations are included, along with creation and verification, and informations about certificates and certification authorities. The usage of digital signature at communication with electronic registry is also described. The second part is used to present particular concept of implemented sample electronic registry's system, and the solution of picked problems.
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Electronic Mail Room of the BUT
Tomášek, Milan ; Křena, Bohuslav (referee) ; Marušinec, Jaromír (advisor)
The main purpose of this master's thesis is to create electronic mail room of The BUT. First of all I described problems concerning a digital signature, its use and safety, and as well as sphere of qualified certificates and method of their issuing by certification authority. The next part of the thesis deals with systems enabling electronic submission (so-called "Electronic Mail Room"). I have focused on available applications providing electronic submission service to civil offices, and subsequently analyzed functions that individual applications offer to the Mail Room clients as well as to authority staff. On the basis of gained knowledge and according CVIS requirements I created project of electronic submission for needs of the Brno University of Technology. Result of this thesis is the application of electronic mail room, implemented in BUT portal.
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