Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
15-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=547, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={56,421,781,421,639,37,591,572,37,403,211,117,305,32,467}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=631, g=419, x=121, a=143, b={232,381,362,603,232,64,232,546,232,343,473,10,324,232,511,232,473,10,213}, M=?
Kafedra mudiri Jo'rayev G.U.