Applications of Evolutionary Computation to Cryptology

Picek, Stjepan

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

Cite this document

APA 6th Edition

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

MLA 8th Edition

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

Chicago 17th Edition

Harvard

Picek, S. (2015). 'Applications of Evolutionary Computation to Cryptology', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 24 January 2025, https://urn.nsk.hr/urn:nbn:hr:168:903769

Vancouver

Picek S. Applications of Evolutionary Computation to Cryptology [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2025 January 24] Available at: https://urn.nsk.hr/urn:nbn:hr:168:903769

IEEE

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

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:903769

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Metadata

Title	Applications of Evolutionary Computation to Cryptology
Title (croatian)	Primjene evolucijskog računarstva u kriptologiji
Author	Stjepan Picek
Mentor	Domagoj Jakobović (mentor)
Committee member	Domagoj Jakobović (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing (Department of Electronics, Microelectronics, Computer and Intelligent Systems) Zagreb
Defense date and country	2015, 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)
Language	english
URN:NBN	urn:nbn:hr:168:903769
Study programme	Title: 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 resource	Text
Extent	225 str. ; 30 cm.
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	FER Repository
Created on	2019-04-15 14:01:55