Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
3-bilet
1. Chiziqsiz kongruent generatorini tushuntiring va misollar keltiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=677, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={452,813,512,764,786,481,752,226,469,512,786,452,620,311,512,786,452,813}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=463, g=414, x=9, a=71, b={432,10,93,250,407,316,407,184,10,407,440,217,10,217,399,407,275,10,93,407,250,407}, M=?
Kafedra mudiri Jo'rayev G.U.