20.500.12556/DKUM-84171 Primerjava učinkovitosti in varnosti simetričnih kodirnikov v programskem okolju C++ diplomsko delo Comparing the effectivnes and security of symmetric ciphers in C++ Kodiranje podatkov ni samo moderna stvar. S težavo varnega prenosa podatkov se je že ubadal rimski general Cezar, ki je z preprosto zamenjavo črk izumil enega izmed prvih kodirnih algoritmov. Danes so algoritmi kompleksnejši, saj morajo kodirati večje število podatkov, zato se je uveljavilo celotno področje razvijanja in optimiziranja kodirnikov. V tem diplomskem delu smo raziskali varnost in učinkovitost osmih simetričnih kodirnikov. Izdelali smo program, ki meri hitrost in zmogljivost na štirih bločnih (AES, RC6, ARIA, IDEA) in štirih pretočnih (Salsa(8/12/20), ChaCha(8/12/20), Rabbit(withIV/noIV), HC128/256) simetričnih kodirnikih. Analiza teorije in rezultatov meritev, je potrdila višjo hitrost pretočnih kodirnikov ter da imajo bločni in pretočni kodirniki primerljivo stopnjo varnosti, kadar delujejo v njihovi najoptimalnejši konfiguraciji. Data encoding is not just a modern phenomenon. The problem of secure data transmission was already tackled by the ancient Roman general Ceasar, who invented one of the first coding algorithms by simply replacing letters. Today however are algorithms much more complex as they have to encode a larger amount of data in a shorter time frame, which is why an entire field of study is dedicated to development and optimisation of ciphers. In this thesis we investigated the security and efficiency of eight symmetric ciphers. More specifically, we made a program that measures the speed and performance of four block (AES, RC6, ARIA, IDEA) and four stream (Salsa(8/12/20), ChaCha(8/12/20), Rabbit(withIV/noIV), HC128/256) symmetric ciphers. Our analysis of the theory and measurement results confirmed the higher speed of stream ciphers and stream encoders have a comparable level of security when operating in their most optimal configuration. simetrični kodirniki bločni kodirniki pretočni kodirniki kodiranje symmetric cipher block cipher stream cipher encoding true true false [T. Mušič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-04-24 08:42:38 2023-06-07 12:04:53 2023-11-08 14:00:05 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (VIII, 32 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.312.26(043.2) 162122243 UN_Music_Tadej_2023.pdf UN_Music_Tadej_2023.pdf 1 346401328C88B05A0B30A15EBC4554FF b5d0f7340f10a07ebab023c74057348bf22c4fa0c54b62382375d83ed82177fe 772d81c7-e989-11ed-acc3-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=167085 UN_Music_Tadej_2023.zip UN_Music_Tadej_2023.zip 1 0526CD7851784E557229EB3E51A5E34F f7bf7015eadb0ae4bd43fd63dad7cc0a63de9f76d2a9234759ed6ad3d957d8a5 87719bdb-e273-11ed-8c67-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=166954 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0