Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
2-bilet
1. Chiziqli va multiplikativ kongruent generatorlarini tushuntiring va misollar keltiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=175, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={24,14,299,485,848,154,266,154,602,252,64,299,771,252,299,266,14,252,147,154}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=947, g=670, x=186, a=820, b={212,254,219,198,212,135,212,93,212,184,191,268,149,177,212,177,226}, M=?
Kafedra mudiri Jo'rayev G.U.