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master's thesis
Diferencijalna kriptoanaliza
2021. urn:nbn:hr:200:458153
Uršan, Josip
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Communications
Chair of Radiocommunications and Telecommunications

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Uršan, J. (2021). Diferencijalna kriptoanaliza (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:458153

Uršan, Josip. "Diferencijalna kriptoanaliza." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2021. https://urn.nsk.hr/urn:nbn:hr:200:458153

Uršan, Josip. "Diferencijalna kriptoanaliza." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2021. https://urn.nsk.hr/urn:nbn:hr:200:458153

Uršan, J. (2021). 'Diferencijalna kriptoanaliza', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 08 April 2025, https://urn.nsk.hr/urn:nbn:hr:200:458153

Uršan J. Diferencijalna kriptoanaliza [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2021 [cited 2025 April 08] Available at: https://urn.nsk.hr/urn:nbn:hr:200:458153

J. Uršan, "Diferencijalna kriptoanaliza", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:200:458153

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Metadata
TitleDiferencijalna kriptoanaliza
Title (english)Differential cryptanalysis
AuthorJosip Uršan
MentorKrešimir Grgić (mentor)
Committee memberKrešimir Grgić (predsjednik povjerenstva)
Committee memberDrago Žagar (član povjerenstva)
Committee memberAnđelko Lišnjić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Communications)
(Chair of Radiocommunications and Telecommunications)
Osijek
Defense date and country2021-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Telecommunications and Informatics
Abstract
U ovom diplomskom radu opisana je temeljna ideja diferencijalne kriptoanalize na općenitom primjeru. Implementirana je jednostavna, proizvoljna, 4-bitna šifra sa dvije runde, jednom S-kutijom u svakoj rundu, te jednim potključem u svakoj rundi. Za ovu šifru provedena je potrebna analiza koju zahtijeva diferencijalna kriptoanaliza, a uključuje analizu karakteristike šifre do R-1 rundi i analizu frekvencija ulaza i izlaza šifre za karakteristiku do R-1 rundi. Nakon obavljene analize implementiran je napad kojeg opisuje diferencijalna kriptoanaliza na 4-bitnu šifru. Potključevi su uspješno dohvaćeni, a nad S-kutijom su provedeni daljnji testovi kako bi se uočio utjecaj konfiguracije S-kutije na ulazno-izlazne odnose. Sav programski kod realiziran je u python programskom jeziku.
Abstract (english)
The fundamental idea of differential cryptanalysis is described in this thesis on a general example. A simple, arbitrary, 4-bit cipher has been implemented. This cipher consists of two rounds, one S-box in each round, and one subkey in each round. Necessary analysis dictated by differential cryptanalysis has been conducted for this 4-bit cipher, which includes analysing cipher characteristic to R-1 rounds and analysing input and output frequencies for cipher's R-1 round characteristic. After analysis, differential cryptanalysis attack on the 4-bit cipher has been implemented. Subkeys were successfully retrieved, and further analyses of S-boxes have been conducted to test out the S-box configuration influence on the input and output relations. All code was implemented using python programming language.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:458153
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Course: Communications and Informatics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-10-04 13:16:09