Reduced models of the Rijndael cipher
Redukované modely šifry Rijndael
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České vysoké učení technické v Praze
Czech Technical University in Prague
Czech Technical University in Prague
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Práce se zabývá redukcí velikosti šifry Rijndael. Zkoumá vlastnosti šifry a kritéria, podle kterých byla navržena. Získané poznatky využívá k formulaci postupu pro návrh redukovaných modelů Rijndaelu. Součástí práce jsou nástroje, které uživateli umožní zmíněný návrh modelu provést a následně využít jeho implementaci. Využitelnost modelů pak demonstruje na kryptoanalýze opakovaným šifrováním.
The thesis deals with the reduction of the cypher Rijndael. It examines the characteristics of the cypher and its design criteria. The obtained knowledge is used to create a Rijndael reduced model design process. The thesis provides tools enabling the user to follow the steps of the process and after that, to use the new model implementation. The practical use of the models is demonstrated on repetitive encryption cryptanalysis.
The thesis deals with the reduction of the cypher Rijndael. It examines the characteristics of the cypher and its design criteria. The obtained knowledge is used to create a Rijndael reduced model design process. The thesis provides tools enabling the user to follow the steps of the process and after that, to use the new model implementation. The practical use of the models is demonstrated on repetitive encryption cryptanalysis.