Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
22-bilet
1. Rukzak algoritmini tushuntiring(generatsiya qilish va shifrlash) va misollar keltiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=235, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={289,296,515,88,254,515,88,114,524,73,524,296,515,88,692,524}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=911, g=701, x=478, a=228, b={693,636,429,517,574,310,574,341,724,781,196,781,429,341,781,341,46}, M=?
Kafedra mudiri Jo'rayev G.U.