Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
25-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=589, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={610,481,303,658,245,813,78,481,303,245,346,303,245,252}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=863, g=452, x=142, a=116, b={44,703,106,771,174,44,106,307,44,372,703,44,242,372,44,440,106,44,307,307,44,372}, M=?
Kafedra mudiri Jo'rayev G.U.