sezar shifri orqali axborotni shifrlash
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mavzu: sezar shifri orqali axborotni shifrlash mavzu: sezar shifri orqali axborotni shifrlash shifrlash nima? axborotni maxfiy saqlash uchun ishlatiladi eng sodda usullardan biri: sezar shifri sezar shifri haqida • rim imperatori yuliy sezar ishlatgan • har bir harf alfavitda n ta oldinga siljitiladi • kalit: qancha siljitish kerak (masalan, +3) lotin alfaviti a b c d e f g h i j k l m n o p q r s t u v w x y z har bir harf o'rni: a=1, b=2, ..., z=26 misol 1: shifrlash so'z: salom kalit: +3 s (19) → v (22) a (1) → d (4) l (12) → o (15) o (15) → r (18) m (13) → p (16) natija: vdorp …
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