Základy šifrování

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hrach

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Pojmy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dělené kryptografie ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Monoalfabetická šifra ,[object Object],[object Object],[object Object],[object Object]

Polyalfabetická šifra ,[object Object],Klíč: ABCDEF AB CDEFA BCD EFABCDEFABCD Otev.text: CRYPTO IS SHORT FOR CRYPTO GRAPHY Šif.text: CSASXT IT UKSWT GQU GWYQVR KWAQJB

Možnosti rozšifrování ,[object Object],[object Object],[object Object],[object Object]

Frekvenční analýza ,[object Object],[object Object],[object Object],[object Object]

Rozluštění polyalfabetické šifry ,[object Object],[object Object],Sekvence Interval Možná délka 02 03 04 05 06 07 08 09 10 EFIQ 95 -- PSDLP 5 -- WCXYM 20 -- -- -- ETRL 120 -- -- -- -- -- -- --

Enigma ,[object Object],[object Object],[object Object],[object Object]

Enigma ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Enigma rozluštěna ,[object Object],[object Object],[object Object]

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