prikaz prve stranice dokumenta Applications of Evolutionary Computation to Cryptology
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doctoral thesis
Applications of Evolutionary Computation to Cryptology
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. urn:nbn:hr:168:903769
Picek, Stjepan
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electronics, Microelectronics, Computer and Intelligent Systems

Institutional repository: FER Repository

Cite this document

Picek, S. (2015). Applications of Evolutionary Computation to Cryptology (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:903769

Picek, Stjepan. "Applications of Evolutionary Computation to Cryptology." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:903769

Picek, Stjepan. "Applications of Evolutionary Computation to Cryptology." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:903769

Picek, S. (2015). 'Applications of Evolutionary Computation to Cryptology', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 16 January 2025, https://urn.nsk.hr/urn:nbn:hr:168:903769

Picek S. Applications of Evolutionary Computation to Cryptology [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2025 January 16] Available at: https://urn.nsk.hr/urn:nbn:hr:168:903769

S. Picek, "Applications of Evolutionary Computation to Cryptology", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:168:903769

Metadata
TitleApplications of Evolutionary Computation to Cryptology
Title (croatian)Primjene evolucijskog računarstva u kriptologiji
AuthorStjepan Picek
MentorDomagoj Jakobović (mentor)
Committee memberDomagoj Jakobović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electronics, Microelectronics, Computer and Intelligent Systems)
Zagreb
Defense date and country2015, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Architecture of Computer Systems
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
In this dissertation we work on several applications of evolutionary computation to difficult problems in cryptology. After the introduction, first chapter deals with the evolution of Boolean functions that can be used in cryptography. Next chapter deals with the evolution of S-boxes with the goal of increasing their DPA resistance. Next application is optimization of combinatorial circuits in order to increase the throughput. Final application is the evolution of search space parameters that can lead to successful fault injection. Besides these applications, we developed a framework for evolution, evaluation and transformation of nonlinear elements. Scientific contributions: Development of a framework for generation, evaluation and affine transformation of Boolean functions and S-boxes. First applications of GP, CGP and ES when evolving Boolean functions for cryptographic usage. Extensive statistical comparison between different EAs when evolving cryptographically suitable Boolean functions. First application of GA when evolving S-boxes that have DPA-improved properties. Experimental results that show DPA-related properties are not affine invariant. First practical results for the modified transparency order and the confusion coefficient properties. Finding upper and lower bounds for the modified transparency order and the confusion coefficient properties for a 4x4 S-box size. Finding S-boxes of size 4x4 with the optimal values of the transparency order, the modified transparency order and the confusion coefficient properties. First application of EAs to the problem of increasing throughput of combinatorial circuits by adding a number of flip-flops. Development and deployment of a custom GA for finding search space parameters that cause faults in smart cards. Development of a custom MA for finding search space parameters that cause faults in smart cards and rapid characterization of the search space.
Abstract (croatian)
U ovoj disertaciji obrađujemo nekoliko primjena evolucijskog računarstva na teške probleme iz područja kriptologije. Nakon uvoda, prva se primjena odnosi na evoluciju logičkih funkcija koje se mogu koristiti u kriptografiji. Slijedeće poglavlje obrađuje evoluciju supstitucijskih kutija sa ciljem poboljšavanja njihove DPA otpornosti. Slijedeća je primjena optimiyacija kombinatoričkih krugova u svrhu ojačavanja njihove otpornosti na DPA napade. Slijedeća primjena je optimizacija kombinatoričkih krugova u svrhu povećavanja propusnosti istih. Zadnja primjena je evolucija parametara prostora rješenja koji mogu dovesti do napada umetanjem grešaka. Uz ove primjene, razvijen je i sustav za evoluciju, evaluaciju i transformaciju nelinearnih elemenata u kriptografiji. Znanstveni doprinosi: Razvoj okruženja za stvaranje, evaluiranje i transformiranje logičkih funkcija i supstitucijskih kutija. Prve primjene algoritama GP, CGP i ES za evoluciju Boole-ovih funkcija za kriptografske svrhe. Iscrpna statistička usporedba raznih evolucijskih algoritama pri evoluciji Boole-ovih funkcija za kriptografiju. Prva primjena GA za evoluciju supstitucijskih kutija koje imaju poboljšana DPA svojstva. Eksperimentalni rezultati koji pokazuju da trenutno znana DPA svojstva nisu afino invarijantna. Prvi praktični eksperimenti za svojstva vezana uz DPA otpornost. Nalaženje gornje i donje granice za modificirani red prozirnosti i koeficijenta zbunjenosti za 4x4 supstitucijske kutije. Nalaženje 4x4 supstitucijskih kutija koji imaju optimalne vrijednosti svojstva reda prozirnosti, modificiranog reda prozirnosti i koeficijenta zbunjenosti. Prva primjena evolucijskih algoritama na problem povećanja propusnosti kombinatoričkih krugova dodavanjem bistabila. Razvoj i testiranje specijalizirane verzije GA za traženje parametara koji uzrokuju greške u pametnim karticama. Razvoj specijaliziranog memetskog algoritma za traženje parametara koji uzrokuju greške kao i karakterizaciju prostora rješenja parametara.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:168:903769
Study programmeTitle: Electrical Engineering and Computing
Study programme type: university
Study level: postgraduate
Academic / professional title: Doktor znanosti elektrotehnike i računarstva (Doktor znanosti elektrotehnike i računarstva)
Type of resourceText
Extent225 str. ; 30 cm.
File originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2019-04-15 14:01:55