|
|
Anonymous communication on the internet
Hořejš, Jan ; Babnič, Patrik (referee) ; Rosenberg, Martin (advisor)
The objective of this master’s thesis was to describe current capabilities of anonymous browsing over the Internet. The theoretical part focuses on three main methods of anonymization with main focus on Tor network. The master‘s thesis describes advantages and disadvantages of different solutions and possible attacks on them. In the next part is demonstrated Tor network, implementation of Hidden service and secured access to the server for clients and possible attacks against this proposal. The work also includes the results of measurements of all three anonymizers and the effects on their speed.
|
|
|
Cryptographic modules for network protection
Tenora, Lukáš ; Pust, Radim (referee) ; Zeman, Václav (advisor)
This work deals with virtual private network (VPN) and authentication. The first section gives the modern cryptographic methods, the work of dealing with problems of authentication and authentication of objects and the issue of VPN. The second part describes the implementation of its own secure network-based technology company SafeNet.
|
|
|
Digital signature
Vaverka, Aleš ; Lambertová, Petra (referee) ; Zeman, Václav (advisor)
Digital signature, the subject of this semester paper, is nowadays very up-to-date. The still rising capabilities of the internet and the vision of lowering the amounts of paper documentation made it necessary to develop a way of signing documents which are transferred through the internet. This is supposed to be equally safe and unassailable as the handwritten signature. This method is called the digital signature. The paper focuses on the explanation of the essential terms connected to digital signature, such as certificate, certification authority, authentication, but in particular on the elementary cryption algorithms, further on applications that make use of digital signature, e.g. post services and electronic banking. In the final chapter, the positive and negative aspects of the electronic signature are discussed.
|
|
|
Design of security infrastructure for electronic archive
Doležel, Radek ; Lattenberg, Ivo (referee) ; Zeman, Václav (advisor)
This master's thesis deals with design of security infrastructure for electronic archive. In theoretical part is disscus about technical resources which are based on security services and protocols and methods which are used for protection. On basics of theoretical part is designed model of security infrastructure and it is built in laboratory. Model of security infrastructure is based on Open Source Software and as safety storages for private user authentication data are used cryptographic USB tokens. This master's thesis includes design and construction of real infrastructure of secured electronic archive. In each part of master's thesis is put main emphases on security and clear explanation from the beginning of desing of model of security infrastructure for electronic archive to finish of construction.
|
|
|
Implementation of certification authority and digital signature
Troják, Martin ; Koutný, Martin (referee) ; Lambertová, Petra (advisor)
This master´s thesis deals with problems of certification authorities and digital signature. There are analyzed principles of digital certificates and certification authorities. It describes the the most widely used cryptosystems and hash functions, which are used in communications with certificates and digital signature. Analysis is focused on Public key infrastructure standard, which describes rules of creating of certification authority and digital signature. There is also described detailed principle of digital signature. Next chapters deals with studying of protocol SSL, principles of functions and usage of SSL. Practical part of this thesis realizes certification authority and information system. There is shown used software and configuration of it. Last part describes procedures during using aplication and her realization.
|
|
|
SDÍLENÉ FINANČNÍ ŘÍZENÍ KOMUNITÁRNÍCH PROGRAMŮ A JEHO REALIZACE V PROSTORU EVROPSKÉ UNIE
Jedličková, Vladislava ; Heřman, Jan (advisor) ; Dvořáček, Jiří (referee) ; Ondřej, Jan (referee)
The issue of migration within the European Union has grown in member countries to considerable size. Management representatives of EU institutions have decided to address this situation. They established community program Solidarity and management of migration flows. The European Commission has decided that for the financial management of this program will be used the principle of shared management. The principle of shared financial management is the delegation of powers and responsibilities for funding and implementing the program from the institutions of the European Commission to the Member State. This decision creates an obligation for a Member State to establish a system of financial management programs in accordance with financial rules of the European Union (not by the financial rules of the Member State). So the general program "Solidarity and management of migration flows" became the first community program in the CR, which is being implemented on the principle of shared financial management. Member states are obliged to create their own theoretical and methodological basis of a new financial management. This method of financial management has three pillars - Responsible Authority, Audit Authority and Certification Authority. The recipient of funds may be non-profit organizations or state or public nonprofit organization. The financial management of the Responsible Authority is responsible for program implementation in the Member State through projects of final beneficiaries. The Audit Authority is the control body. The Certification Authority is the authority for confirmation. It is the last link between the European Commission and Member States. The task of the Certification Authority and at the same time of this dissertation was to develop new theoretical and methodological system of internationally recognized certification of public expenditures for services that are financed from the EU budget. In the past, the issue of certification of the expenditures financed by community programs in the CR was not addressed. The goal set in my work was met. New theoretical and methodological certification system was created. Functionality and effectiveness of the system was checked before being put into practice through expert assessment by experts of the Ministry of Interior and Ministry of Finance. Also theoretical and methodological approach was developed, which was approved by the Minister of the Interior, and which became a mandatory certification standard for all involved organizations in the CR. The system was put into practice and has been used since 2009.
|
|
|
Digital certificates and certification authority
ČELEDA, Stanislav
This work deals with the possibilities of using digital certificates and certification authorities or analysis of alternatives and their use to create secure communication in information systems. In practical examples is demonstrated by the CA implementation on different platforms and generate various types of digital certificates. Based on the findings is made recommendations for choosing the appropriate certification authority.
|
|
|
Internal Certification Authority
Kolb, Jiří ; Pavlíček, Luboš (advisor) ; Bumbala, Jan (referee)
With the rising number of internet users emerged the need for mutual authentication and secure communication. In the open environment of the Internet, this service is provided by a trusted third party using asymetric cryptography. This trusted third party - called Certification Authority - provides identification of the communication partners and the security of their communication through certificates it issues. Many large companies use certification authorities today. The goal of my thesis is the design and implementation of a CA for a small company, along with an evaluation of the benefits of introducing this new technology.
|
|
|
Comparison of the legislation of electronic signature in selected countries
Hautke, Tomáš ; Toman, Prokop (advisor) ; Svatá, Vlasta (referee)
Focus of this thesis is to compare legislation of electronic signature in the Czech Republic and in the USA. In first chapter are explained basic terms, such as cryptography, certificate or certification authority. Next two chapters deal with laws concerning electronic communication. In chapter about Czech legislation they are electronic signature law and electronic transactions and authorized document conversion law. Moreover, Czech Republic has to abide EU directive. Chapter about USA legislation consists of ESIGN act and UETA. Following chapter is dedicated to problems caused by imperfect legislation. Last chapter contains evaluation of described legislation.
|
|
|
Electronic signature and První certifikační autorita
Suková, Lenka ; Toman, Prokop (advisor) ; Štědroň, Bohumír (referee)
This bachelor thesis deals with electronic signature and První certifikační autorita. The theoretical part is aimed at the definition of electronic signature, refers to its advantages and drawbacks and the principles of symmetric and asymmetric cryptology, on which electronic signature is based. It also describes the development of legislation governing electronic signature and provides definitions of selected concepts - certification authority and certificate. The second part deals with the companyPrvní certifikační autorita, one of the only three accredited providers of certification services in the Czech Republic. It contains an introduction of the company, its services, statistics of the Czech certificate market and statistics of the company's issued certificates. Next chapter describes the acquisition process of qualified certificate at První certifikační autorita, an assessment of the service and proposals for its improvement.
|
guest ::
