Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
26-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=511, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={277,781,273,767,7,277,333,781,487,232,273,144,273,781,739,487}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=571, g=288, x=12, a=226, b={336,431,447,114,336,257,336,162,336,463,3,82,479,352,336,352,558}, M=?
Kafedra mudiri Jo'rayev G.U.