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Asymmetric Cryptography on FPGA
Dobiáš, Patrik ; Smékal, David (referee) ; Malina, Lukáš (advisor)
This bachelor thesis deals with the analysis of existing hardware implementations of asymmetric cryptographic schemes on the FPGA platform and the then implementation of the cryptographic scheme Ed25519 on this platform. The resulting implementation is described in detail and compared with existing implementations. At the end of this work, the deployment of this implementation on the Virtex UltraScale+ FPGA is described.
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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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Electronic Mail Room of the BUT
Beran, Martin ; Křena, Bohuslav (referee) ; Marušinec, Jaromír (advisor)
This dissertation thesis attends to problems of electronic registry for VUT. It deals with the principal of electronic registry functioning, electronic signature and it compares offer of the commercial registries. It goes in for the proposal and implementation of the electronic registry for VUT. Since the using of the e- registry on all public service Office was legalized the people can avoid long queues and the employees are avoided from the stress before dead lines. By the communication through the electronic registry is very important the electronical signature. It is almost a full-valued and lawful alternative to the physical signature. For its safety and utility this system employes asymmetric codes and hash algorithm. Presently in many states, where the electronical signature is legalized it is used together with standard X 509 which defines the format of certificates, organization and action of certification authorities. The certification autority ensures safe connection of the person and general key for using of the electronical signature.
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Secure Communications in Wireless Embedded Systems
Marek, Pavel ; Šimek, Milan (referee) ; Červenka, Vladimír (advisor)
This bachelor thesis deals with secure communication in wireless sensor networks. There are given and described options of encryption protocols that using symmetric and asymmetric ciphers. This protocols are evaluated from aspect of computational performance and energy comsumption. Pursuant this evaluations there is designed and implemented key distribution protocol for symmetric cipher. Encryption of communication s implemented by IEEE 802.15.4 standard. This implementation is performed on ARM Cortex-M3.
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Comparing Groups of Public-Key Ciphers
Lukáš, Martin ; Ivánek, Jiří (advisor) ; Palovský, Radomír (referee)
In this thesis, I introduce several groups of public-key algorithms, the groups being factori-zation problem, discrete logarithm problem, and other problems. I choose one representa-tive algorithm from each group and describe it in-depth, also mentioning certain aspects used in real world implementations and most important attacks. other problems. The objec-tives of this thesis are to compare these groups as well as algorithms in them according to their operational speed, key lengths and resistance against quantum cryptanalysis.
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Electronic ID Cards
Mravec, Roman ; Burda, Karel (referee) ; Hajný, Jan (advisor)
This master thesis deals with an implementation of Diffie-Hellman protocol on smart card which is based on MULTOS OS. Defines the smart cards based on MULTOS OS and their usage. Output of this thesis are applications for a smart card and for a client using Diffie-Hellman protocol for establishing of a secret key between two communication sides through unsecured communication channel.
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Comparison of Cryptographic Libraries in Linux Environment
Bartoš, Milan ; Malinka, Kamil (referee) ; Barabas, Maroš (advisor)
Bachelor's thesis deals with the comparison of the three cryptographic libraries used in the Linux environment. These are GnuTLS/nettle, NSS and OpenSSL. These are compared in terms of support for basic cryptographic functionality (symmetric and asymmetric ciphers, hash algorithms, SSL/TLS), working with hardware tokens and SSL/TLS. Libraries are also compared in terms of API design with a focus on stability and work with certificates and the possibility of more independent use of the library in a single process.
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Security of Electronic Documentation in Medical Environment
Hauserová, Markéta ; Malinka, Kamil (referee) ; Barabas, Maroš (advisor)
Thesis is analyzing czech laws which are related to medical documentation. Describes the points which are mandatory for information system, so the medical documentation can be stored electronically. Includes various algorithms for implementation of certain electronic signature and for identification of person. This thesis deals with asymmetric cryptography, specifically RSA, DSA, and ECDSA. Describes the hash functions and their functions and their characteristics. Describes the principle of the certificate, ways of its obtaining, invalidation and their formats. Analyzes medical information system and suggests ways to create a program for signing medical records. Then based on that analysis, the program is implemented. At the conclusion of the work is discussed, if created program meets the criteria.
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