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ORGRAF PARAMETRLARINI TANLASH ORQALI YUQORI NOCHIZIQLI, YAXSHILANGAN QAT’IY LAVIN SAMARADORLIGIGA EGA S-BLOKLARNI HISOBLASH ALGORITMI

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MAQOLA ANNOTATSIYASI

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Ushbu maqolada zamonaviy kriptografi yada ishlab chiqilayotgan blokli shifrlash standartlarining muhim qismlaridan biri bo‘lgan nochiziq akslantirish bloki (S-blok)ni generatsiya qilish muammosi ko‘rib chiqildi. Bunda foydalanuvchilar oʻrtasida almashiladigan maʼlumotlar maxfi yligini taʼminlash uchun ishonchli kriptografi k shifrlash algoritmlariga ehtiyoj borligi aniqlandi. Maqolada qo‘shnilik matritsasi parametrlarini tanlash orqali simmetrik shifrlash algoritmlari uchun bardoshli S-blok yaratishning yangi yondashuvi taklif etildi. Mazkur algoritm asosida yuqori umumiy nochiziqli va qat’iy lavin samaradorligi tavsiya etilgan ko‘rsatkichlarga yaqin bo‘lgan qiymatlar olindi. Ushbu qiymatlar S1 {8 x 8} da N(f) = 112, N(S) = 112, deg(f) = 7, AI = 2, SACo‘rt = 0,5 ga, S2 {8 x 8} uchun N(f) = 112, N(S) = 112, deg(f) = 7, AI = 2, SACo‘rt = 0,5 ga teng bo‘ldi. Bu usul yordamida blokli simmetrik shifrlash algoritmlari uchun bardoshli S-blok qiymatlarini generatsiya qilish mumkinligi tadqiq etildi.

MUALIFLAR

Teglar

# симметричное шифрование# нелинейность# nonlinearity# nochiziqlik# алгебраический иммунитет# shifrlash algoritmlari# S-box# simmetrik shifrlash# S-blok# qo‘shnilik matritsasi# orgraf# algebraik immunitet# qat’iy lavin samaradorlik# алгоритмы шифрования# S-блок# матрица смежности# ориентированный граф# строгая лавинная эффективность# encryption algorithms# symmetric encryption# adjacency matrix# directed graph# algebraic immunity# strict avalanche criterion

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