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Access control system using multilevel authentication
Cvrček, Tadeáš ; Člupek, Vlastimil (referee) ; Dzurenda, Petr (advisor)
The master's thesis focuses on authenticated key agreement protocols and their implementation on MultOS smart cards platform and devices running Google Android operating system. Implemented applications use NFC (Near Field Communication) interface for communication with cellphone, Bluetooth technology for communication with smart watch and smart card as SAM (Secure Access Module) module in a verifier role. The source code is universal, so it is possible to use it in other projects.
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User Authentication and Autorization for New Generation Networks
Přibyl, Radek ; Cvrček, Daniel (referee) ; Matoušek, Petr (advisor)
This document describes methods of user authentication and authorisation via a trusted server. There is analysis of the system Kerberos, which is used as an inspiration for desing of a new authentication scheme. There are analysed programming layers and interfaces for specific applications ensuring user authentication and authorisation. The document contains a design and detailed description of a new authentication scheme. This scheme is implemented into the communication between email client and imap server.
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NFC reader with supervisory communication
Kyzlík, Lukáš ; Baštán, Ondřej (referee) ; Kaczmarczyk, Václav (advisor)
Semestrální práce se soustředí na průzkum před návrhem a tvorbou prototypů modulů přístupového systému využívající technologii NFC. Detaily o implementaci technologie NFC jako například komunikační módy, signalizační módy, typy NFC tagů a relevantní standardy jsou byly prozkoumány. Byl proveden průzkum trhu v oblasti dostupných přístupových systémů s NFC. Detaily o 2 systémových řešeních a 3 samostatných NFC čtečkách byly zjištěny a jejich parametry porovnány. Informace o návrhu NFC čteček a NFC tagů byla shrnuty and vhodné parametry na základně průzkumu trhu diskutovány.
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The security risks of authentication methods
Dzurenda, Petr ; Babnič, Patrik (referee) ; Rosenberg, Martin (advisor)
Master's thesis deals with the security risks of current authentication methods. There are described methods which are based on user's knowledge and ownership of authentication object and biometric authentication method. The practical part of this Master's thesis deals with a specific design of authentication system based on protocol ACP, when the user proves his identity by smart card on provider assets, which is represented by ACP portal on the user's computer.
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Authentication of web service users
Plašil, Matouš ; Ležák, Petr (referee) ; Burda, Karel (advisor)
In this bachelor thesis are presented methods for Single Sign-On from perspective of client application. It takes a closer look at protocols OpenID and OAuth and explains the main differencies. Next part of the thesis is focused on registration of application and communication between server and client application. This is realized by OAuth protocol. In the practical part is described a created web application and used methods are explained.
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Online DNSSEC Records Validation
Bachtík, Martin ; Čejka, Rudolf (referee) ; Lampa, Petr (advisor)
Master's Thesis is studying an extension that secures the domain name system by introducing the verifiability of authenticity of data, known as DNSSEC. Productive output is proposal of application and its subsequent implementation that at each stage of browse the namespace to the selected domain name checks the appropriatenesses of this extension and in detail reports the trusted chain.
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Multifactoral Authentication of Electronic Documents
Gancarčík, Lukáš ; Kodl,, Jindřich (referee) ; Smejkal, Vladimír (advisor)
The aim of the thesis is to provide complete information regarding electronic documents and possibilities of their usage. The focus is concentrated on the area of authentication, which specifies the possibility of obtaining authentication information and describes the authentication processes itself. The diploma thesis also deals with the suggestion of multifactor authentication of electronic documents for the selected company.
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System for anonymous transmit of messages
Kislinger, Jan ; Rosenberg, Martin (referee) ; Ležák, Petr (advisor)
Diploma thesis deals with an anonymous transmit of messages using protocol for anonymous authentication. In first part, we introduce theoretical familiarization to the issues and description protocol for anonymous authentication. Further, it describes the suggestion of the communication between the client and the server. Finally, contains a description of the created system for anonymous transmit of messages, which consists of the server and clients, who can leave challenges on the server for other users and they obtains challenges from the server. The thesis explains how to start and control program. There are also discussed methods of computing verification values, encryption keys and messages and authentication of receivers.
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Data-efficient security of cloud storages
Elis, Martin ; Fujdiak, Radek (referee) ; Člupek, Vlastimil (advisor)
This work is focused on problematics of a cloud solution, especially on its security side. It describes the current security trends and approaches used by security engineers when creating sophisticated designs of secure cloud systems. As part of it there is a risk analysis and an overview of the most common types of attacks led against the cloud solutions. Also, this document deals with the possibilities, principles, advantages and negatives of different types of cloud distributions. Another text deals with the usual methods used for accessing the cloud. This thesis contains author’s own design of possible realization. In the next part of the document, process of building a safe cloud data storage is described together with principles of ensuring its security. In the conclusion, the author focuses on comparison of cryptographic algorithms and their behavior depending on the length of a used keys.
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