Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
16-bilet
1. Katta sonlarni tub ko‘paytuvchilarga ajratish murakkabligiga asoslangan RSA generatorinin tushuntiring va misollar keltiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=95, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={105,443,561,443,467,362,506,222,506,561,26,79,222,561,380,362,506,561}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=337, g=199, x=156, a=140, b={170,202,293,202,22,202,145,38,13,252,79,145,38,211,145,38,334,318,120,170,334,202,22,38}, M=?
Kafedra mudiri Jo'rayev G.U.