Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
36-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=259, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={6,350,277,6,437,481,174,6,380,35,456}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=619, g=554, x=559, a=226, b={3,455,103,70,3,53,103,70,103,120,103,321,269,85,488,354,53,120,488}, M=?
Kafedra mudiri Jo'rayev G.U.