Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
56-bilet
1. Zamonaviy shifrlash algoritmlariga asosiy talablar
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=163, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={254,302,751,302,76,330,310,114,702,302,115,148,330,302,115,326,254,302,114,302,115,326}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=773, g=361, x=358, a=161, b={746,588,454,210,399,399,210,770,533,52,533,478}, M=?
Kafedra mudiri Jo'rayev G.U.