Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
51-bilet
1. AES- malumotlarni shifrlash standarti algoritmini tushuntiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=643, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={145,216,270,273,24,487,299,41,673,333,270,487,274,492,492,560}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=269, g=207, x=128, a=66, b={36,152,254,152,162,152,111,220,26,2,203,111,220,19,111,220,237,179,186,36,237,152,162,220}, M=?
Kafedra mudiri Jo'rayev G.U.