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Postranní útok na RSA-CRT s využitím SFT algoritmu
Ruppeldtová, Ria ; Hlaváč, Martin (advisor) ; Rosa, Tomáš (referee)
The work deals with the side channel attack on RSA using Chinese Remainder Theorem and Montgomery multiplication. The core of the attack lies in finding a Significant Fourier Transform coefficient for appropriately chosen function. In the theoretical part the functionality of SFT algorithm is described and special properties of function coming from the side channel during Montgomery exponentiation in RSA signing are shown. Based on these results a new algorithm for finding a single significant coefficient is proposed. At the end of the work appropriate input parameters are explored and experimentally determined time results of algorithms are presented.

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