Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi 1-bilet

Axborot xavfsizligining kriptografik usullari fanidan yakuniy nazorat ishi
11-bilet
1. Rukzak algoritmini tushuntiring(generatsiya qilish va shifrlash) va misollar keltiring
2. RSA ochiq kalitli shifrlash algoritmi uchun quyidagi parametrlarga mos yopiq kalitni hisoblang. p=37, q=23, e=751, d=?, hamda shu parametrlar yordamida shifrlangan quyidagi shifrni oching(deshifrlang). C={299,74,24,299,265,125,784,239,527,402,338}, M=?
3. El-Gamal algoritmini tushuntiring va quyidagi parametrlar yordamida shifrni oching (deshifrlang)
P=643, g=241, x=467, a=576, b={46,539,113,271,405,405,271,413,188,121,188,480}, M=?
Kafedra mudiri Jo'rayev G.U.