Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
1-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=151, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={841,591,841,781,452,841,277,117,525,117,591,21,37,781,649,421,277,437,117,37,591}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=271, g=72, x=17, a=69, b={127,107,96,204,193,127,96,52,127,85,107,127,19,85,127,182,96,127,52,52,127,85}, M=?
Kafedra mudiri Jo'rayev G.U.