|
|
Long-term Cloud Storage Security
Wojnar, Filip ; Dzurenda, Petr (referee) ; Malina, Lukáš (advisor)
Práce se zaměřuje především na téma dlouhodobé bezpečnosti archivních úložišť v cloudu. Zabývá se podmínkami a zásadami životního cyklu správy klíčů, které uvádí NIST pro vytvoření robustního systému správy klíčů. Závěrečná část úvodní kapitoly zkoumá nejnovější možnosti systémů správy klíčů, zahrnující průmyslové giganty, jako je Amazon Web Services Key Management Services, až po open-source alternativu s názvem Hashicorp Vault. Druhá kapitola práce je věnována postkvantově bezpečné kryptografii a zkoumá proces standardizace NIST pro postkvantovou kryptografii (PQC). V rámci této oblasti práce porovnává sedm algoritmů, které úspěšně prošly do závěrečného kola zvažování, a nakonec vybírá Crystals-Dilithium pro Digital Signature Algorithm (DSA) a Crystals-Kyber pro Key Encapsulation Mechanism (KEM) jako nejefektivnější na základě procesorového času, který vyžadují pro své kryptografické operace. Třetí kapitola nastiňuje stávající cloudový archivační systém na VUT v Brně a navrhuje výchozí kryptografické schéma pro správu klíčů ve virtualizovaném prostředí. To zahrnuje generování páru master klíčů, generování páru datových klíčů, šifrování dat v klidu, dešifrování dat v klidu, sdílení prostředků, rotaci klíčů, obnovu klíčů a odvolání klíčů. Čtvrtá kapitola se zabývá nuancemi implementace realizované v této práci a hodnotí efektivitu řešení pomocí benchmarků zaměřených na nově přidanou kryptografickou funkcionality realizovanou pomocí post-kvantově bezpečné správy klíčů.
|
|
|
Cryptography protocol with public key
Fujdiak, Radek ; Rášo, Ondřej (referee) ; Mlýnek, Petr (advisor)
The Master thesis is an introduction to cryptology. The Thesis describe cryptosystems and selects one ideal cypher for low-power microcontroler. In thesis provides manual for instal development program COde Composer Studio, basic implementation of selected cryptosystem with small numbers and suggestion for implementation selected cyptosystem with big numbers.
|
|
| |
|
|
Hardware Acceleration of Encryption Algorithms Using Xilinx Zynq Technology
Linner, Marek ; Fukač, Tomáš (referee) ; Kořenek, Jan (advisor)
The main concern of this paper are two world standard encryption algorithms Data Encryption Standard DES (DES for short) and Advanced Encryption Standard (further mentioned as AES). For these two respective algorithms, three publicly available implementations are integrated into a benchmarking code in C programming language. The code has been executed, implementations measured with three different input block lengths and bitrate calculated for each implementation. The thesis also includes hardware implementation of both encryption algorithms DES and AES using VHDL language, simulation of the synthesised circuits and calculation of the hardware implementations' bitrate using Vivado simulator's timing reports. These measured bitrates are then compared with the bitrates of benchmarked software implementations. Paper includes all source codes of the benchmarking C program and VHDL implementation, along with program written in C# used to generate VHDL components and another C# program used for automated testing.
|
|
|
Implementation of symmetric bloc cipher AES in modern processors
Škoda, Martin ; Balík, Miroslav (referee) ; Rášo, Ondřej (advisor)
The main aim of master's thesis is usage of new instructions from instruction set called Intel® Advanced Encryption Standard New Instructions (AES-NI), which is available on processors with code name Westmere and newer. In theoretical part, there are described symmetric block ciphers and their operational modes. Cipher AES is described in details, especially used block transformations, key expansion and equivalent inverse cipher. Next topic is description of instructions of AES-NI instruction set – their function is explained using pseudo codes of instructions and there are examples of their usage in code. Further in work, dynamic-link library is created, which implements cipher AES with key sizes 128, 192 and 256 bites and implements operational modes described in theoretical part. Library functions are called from Matlab by scripts and their functionality is proved by checking test vectors values, which are provided in publications of National Institute of Standards and Technology.
|
|
|
Access control system for carsharing application
Texl, Filip ; Ilgner, Petr (referee) ; Dzurenda, Petr (advisor)
The bachelor thesis is devoted to access systems with an emphasis on carsharing applications, both from a theoretical point of view, where it analyzes their advantages and disadvantages and uses cryptographic primitives, and also from a practical point of view, where the practical part includes the design of an access system and its subsequent implementation. Bluetooth Low Energy technology and Near field communication are also used in the bachelor thesis, which is again described from a theoretical point of view, especially the key concepts of these technologies, as well as its practical use for access systems.
|
|
|
Hardware Acceleration of Encryption Algorithms Using Xilinx Zynq Technology
Linner, Marek ; Fukač, Tomáš (referee) ; Kořenek, Jan (advisor)
The main concern of this paper are two world standard encryption algorithms Data Encryption Standard DES (DES for short) and Advanced Encryption Standard (further mentioned as AES). For these two respective algorithms, three publicly available implementations are integrated into a benchmarking code in C programming language. The code has been executed, implementations measured with three different input block lengths and bitrate calculated for each implementation. The thesis also includes hardware implementation of both encryption algorithms DES and AES using VHDL language, simulation of the synthesised circuits and calculation of the hardware implementations' bitrate using Vivado simulator's timing reports. These measured bitrates are then compared with the bitrates of benchmarked software implementations. Paper includes all source codes of the benchmarking C program and VHDL implementation, along with program written in C# used to generate VHDL components and another C# program used for automated testing.
|
|
|
Implementation of symmetric bloc cipher AES in modern processors
Škoda, Martin ; Balík, Miroslav (referee) ; Rášo, Ondřej (advisor)
The main aim of master's thesis is usage of new instructions from instruction set called Intel® Advanced Encryption Standard New Instructions (AES-NI), which is available on processors with code name Westmere and newer. In theoretical part, there are described symmetric block ciphers and their operational modes. Cipher AES is described in details, especially used block transformations, key expansion and equivalent inverse cipher. Next topic is description of instructions of AES-NI instruction set – their function is explained using pseudo codes of instructions and there are examples of their usage in code. Further in work, dynamic-link library is created, which implements cipher AES with key sizes 128, 192 and 256 bites and implements operational modes described in theoretical part. Library functions are called from Matlab by scripts and their functionality is proved by checking test vectors values, which are provided in publications of National Institute of Standards and Technology.
|
|
| |
|
|
Cryptography protocol with public key
Fujdiak, Radek ; Rášo, Ondřej (referee) ; Mlýnek, Petr (advisor)
The Master thesis is an introduction to cryptology. The Thesis describe cryptosystems and selects one ideal cypher for low-power microcontroler. In thesis provides manual for instal development program COde Composer Studio, basic implementation of selected cryptosystem with small numbers and suggestion for implementation selected cyptosystem with big numbers.
|
guest ::
