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Hardware cryptographic modules for LAN security
Loutocký, Tomáš ; Lambertová, Petra (referee) ; Zeman, Václav (advisor)
The thesis deal with the problems of virtual private network (VPN). The first part of the thesis is focused on the description of the basic terms of computer security which are useful for better understanding the other parts. There is a description of VPN technology and its separation of VPN by various aspects in the second part of the thesis. The next chapter is dedicated to the description of realization of VPN by using IPSec. There is shown how to secure laboratory network by using of the products of the Safenet Company in the practical part of the thesis. There are also stated the modular techniques how to use products in the network in practical part. Some of the modular techniques describe security weaknesses of the products which are possible to exploit in the laboratory network and they also describe the ways how to protect them against misusage.
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Proposal of the secure network model
Kis, Matej ; Rosenberg, Martin (referee) ; Babnič, Patrik (advisor)
The goal of this work was to create a design of a secured network infrastructure with decribing different ways of securing at ISO/OSI layers. Create a list of protocols which can be used to achieve a secured network design. In the theoretical part of this work the attention was placed to analyze possible solutions, which can be appllied in a practical part of the work. The practical part involves a design of a network topology and simulation. The part of the simulation was device configuration and network security testing.
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Secure network based on CISCO systems
Wagner, Zdeněk ; Beran, Jan (referee) ; Macho, Tomáš (advisor)
This work deals with the matter of Virtual Private Network (VPN) utilizing both contemporary and older protocols and the possibilities of their use. Among the most interesting parts there are those presenting various ways of use of the VPN technology, IPSec protocol, IOS SSLVPN and RSA server with HW token ensuring the two-factor user authentication.
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Software support of teaching of cryptography protocols
Marek, Tomáš ; Lambertová, Petra (referee) ; Burda, Karel (advisor)
Document contains informations about authentication, encryption, data integrity and data authenticity. Next part includes description of well know cryptography protocols, their functions and also their weaknesses. All of these acquired informations were used in concept and final software support for teaching of cryptography protocols, which is able to run on clasic web-browser. Thats why the application was designed as web PHP pages using JavaScript and AJAX, which ensures plaform and OS architecture independency. Besides the descripted and ilustrated part of application there are also interactive parts and animations. The last period contains description of education software and its functions. Source code can be found on the appended CD.
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Implementation and Security of IPv6 Protocol in the Company
Hensl, Jaroslav ; Sedlák, Petr (referee) ; Ondrák, Viktor (advisor)
This Master's thesis is focused on the IPv6 protocol implementation in a business environment. The thesis theoretically describes parts of the protocol which are then used in a real environment with respect to maximal compatibility and security. The thesis deals with hardware components, router configuration on FreeBSD OS, and switch configuration with RouterOS. The thesis also proposes how to monitor the network.
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Creating a VPN Access Point on Raspberry Pi
Kovařík, Martin ; Hájek, Jaroslav (referee) ; Benedikt, Jan (advisor)
This bachelor thesis deals with creating a virtual private network (VPN) access point on a single-board Raspberry Pi computer. The theoretical part describes the principle of VPN, the most common tunneling protocols and the Raspberry Pi computer in general with its various generations and models. Selected protocols are implemented on the Raspberry Pi and their hardware load, response and throughput are measured. The stability of the protocols is tested and reliability evaluated.
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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.
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Installation, configuration and testing of server services DHCP, FTP, VPN, NAT and SNMP in IPv4 and IPv6 environments
Brázda, Libor ; Sysel, Petr (referee) ; Novotný, Vít (advisor)
This bachelor thesis focuses on selecting server services such as FTP, DHCP, VPN, NAT and SNMP and their implementation in operating system Windows Server 2008 R2 and linux distribution Debian. The theoretical part analyzes the problems of TCP/IP protocol including addressing in IPv4 and IPv6 environments. In next chapters, thesis contains detailed descriptions of individual services, their principles, security, etc. The last part is focused on the description of the laboratory task, their activities and contribution to student and also software used in the implementation tasks. The result of laboratory work is created job on the configuration of individual services in both operating systems. Tasks are made for students without previous knowledge of the problem, so they can successfully configure and test these tasks.
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