Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
24-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=593, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={342,592,38,197,267,464,19,265,19,342,660,147}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=293, g=198, x=254, a=279, b={39,239,232,239,251,239,120,170,239,170,20,239,170,251,8}, M=?
Kafedra mudiri Jo'rayev G.U.