Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
57-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=131, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={455,675,592,312,211,771,760,506,154,592,147,743,592,206,180,771,312,658}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=839, g=352, x=711, a=413, b={338,567,71,338,491,110,529,379,112,150,417,491,33,71,491,338,567,148,491,414,379,112}, M=?
Kafedra mudiri Jo'rayev G.U.