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Rotor Machines in Cryptography

otor Machines in Cryptography:-<br> u090fu0928u094du0915u094du0930u093fu092au094du0936u0928 u0915u0947 u0915u0908 step u090fu0915 u090fu0932u094du0917u094bu0930u093fu0925u092e u0915u093e production u0915u0930 u0938u0915u0924u0947 u0939u0948u0902 u091cu094b cryptanalyze u0915u0947 u0932u093fu090f u0915u093eu092bu0940 u0905u0927u093fu0915 u0915u0920u093fu0928 u0939u0948u0964 u092fu0939 substitution ciphers u0915u0947 u092cu093eu0930u0947 u092eu0947u0902 u0909u0924u0928u093e u0939u0940 u0938u091a u0939u0948 u091cu093fu0924u0928u093e u0915u093f u092fu0939 transposition cipher u0915u093e u0939u0948u0964 DES u0915u0940 u0936u0941u0930u0941u0906u0924 u0938u0947 u092au0939u0932u0947, u090fu0928u094du0915u094du0930u093fu092au094du0936u0928 u0915u0947 u0915u0908 steps u0915u0947 theory u0915u093e u0938u092cu0938u0947 u092eu0939u0924u094du0935u092au0942u0930u094du0923 application rotor machines u092eu0947u0902 u091cu093eu0928u093e u091cu093eu0928u0947 u0935u093eu0932u093e u0938u093fu0938u094du091fu092e u0915u093e u090fu0915 class u0925u093eu0964<br>rotor machine u092eu0947u0902 u0938u094du0935u0924u0902u0924u094du0930 u0930u0942u092a u0938u0947 u0918u0942u092eu0928u0947 u0935u093eu0932u0947 u0938u093fu0932u0947u0902u0921u0930u094bu0902 u0915u093e u090fu0915 u0938u0947u091f u0939u094bu0924u093e u0939u0948 u091cu093fu0938u0915u0947 u092eu093eu0927u094du092fu092e u0938u0947 electro-cal pulses flow u0939u094b u0938u0915u0924u0940 u0939u0948u0902u0964 u092au094du0930u0924u094du092fu0947u0915 u0938u093fu0932u0947u0902u0921u0930 u092eu0947u0902 26 u0907u0928u092au0941u091f u092au093fu0928 u0914u0930 26 u0906u0909u091fu092au0941u091f u092au093fu0928 u0939u094bu0924u0947 u0939u0948u0902, internal wiring u0915u0947 u0938u093eu0925 u091cu094b u092au094du0930u0924u094du092fu0947u0915 u0907u0928u092au0941u091f u092au093fu0928 u0915u094b u090fu0915 Unique u0906u0909u091fu092au0941u091f u092au093fu0928 u0938u0947 u091cu094bu0921u093cu0924u093e u0939u0948u0964 u092au094du0930u0924u094du092fu0947u0915 u0938u093fu0932u0947u0902u0921u0930 u092eu0947u0902 u0915u0947u0935u0932 u0924u0940u0928 internal connection u0926u093fu0916u093eu090f u091cu093eu0924u0947 u0939u0948u0902u0964

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Rotor Machines in Cryptography

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  1. Rotor Machines in Cryptography  ??????????? ?? ?? step ?? ????????? ?? production ?? ???? ??? ?? cryptanalyze ?? ??? ???? ???? ???? ??? ?? substitution ciphers ?? ???? ??? ???? ?? ?? ?? ????? ?? ?? transposition cipher ?? ??? DES ?? ?????? ?? ????, ??????????? ?? ?? steps ?? theory ?? ???? ?????????? application rotor machines ??? ???? ???? ???? ?????? ?? ?? class ??? rotor machine ??? ???????? ??? ?? ????? ???? ????????? ?? ?? ??? ???? ?? ????? ?????? ?? electro-cal pulses flow ?? ???? ???? ???????? ??????? ??? 26 ????? ??? ?? 26 ?????? ??? ???? ???, internal wiring ?? ??? ?? ???????? ????? ??? ?? ?? Unique ?????? ??? ?? ?????? ??? ???????? ??????? ??? ???? ??? internal connection ????? ???? ????

  2. ?? single cylinder ???? ???? ?? ??? ?? ? ???? ? ?? ? ?? ?? ???? ?? ???, ???? ? ?? ?? ?? ???? ?? ?? ???? ?? , ???? Internal connection transferred accordingly ?? ???? ? ?? ??? monoalphabetic Substitution Ciphers Defined ???? ??? ?? ? plain text ?? 26 ??? ???? ?? ???, ???? ? ?? ???? initial situation ?? ? ? ?????? ?? ?? ????, ????? ??? 26 ?? duration ?? ??? ?? Multi- alphabet substitution algorithm ?? ? ?? single-cylinder system pinpoint ?? ?? ?? Formidable cryptana- lytic task presente ???? ???? ?? ? ???? ???? ?? ??? ?? ?? ???? ? ???? ?? ????? ?? ? ???? ?? , ????? ? ?? ???? ? ?? ?? ????? ? ??? ???? ?? ???? ? ??? ?? ?? ?? ? ???? ?? ? ? ??? ?? ?? ????? ??? ?? ?? ???? ?????? ?? ????? ? ???? ?? ?? ???? ??? (plain text ?? ?? A) ?? ???? ? ?? ??? ???? ? ???? ?? ???? ?? ?? ?? ? ???? ???? ?? ???? ????? ? ?? ?? ???? ??? ?? ??? ?? ??? ??? (Ciphertext ?? ?? B)?

  3. ?? ???? ? ???? ?? ???, ???? ?? ???? ? ?? ???? ???? ?? ??? ?? ? keystroke ?? ??? ?? ??? ?? ???? ?? ?? ???? ?? ? ????? ??? ??? single keystroke ?? ??? ???? ?? ?? layout ?? ?? ?????? ?? ? internal cylinder ?? ?? ??? ?? ? full rotation ?? ???, middle cylinder ?? ??? ?? ???? ?? ?? ???? ?? ? middle cylinder ?? ?? ??? ?? ? full rotation ?? ???, outer cylinder ?? ??? ?? ???? ?? ?? ???? ?? ? ?? ??? ?? ???? ?? ???? ?? ?? ???? ??????? ?? ??? ?? ?? ???? ?? ? ???? ?? ?? ??????? ?? ???? 26 * 26 * 26 = 17,576 ???-??? replacement ??? ?? ??? ?? ??? ??? ???? ?? ? ? ???? ?? ??? ??? ? ????? ?? ???? ?? ?? ?? ???? 456,976 ?? 11,881,376 ??? ???? ?? duration ???? ?? ? ?? ?? ?? David Kahn ?? ??? ?-???? ???? ?? ???? ? ???? ?? ? ??? eloquence ?? ??? ???

  4. ?? duration ?? duration ??? ?? frequency ?? ???? ?? ???? ?????? ?? ???? ?? practical possibility ?? fail ?? ?? ?? ?? ? ?? solution ?? ??? per cipher ??? ????? ?? ? ???? 50 ??? ???? ?? ???? ???? ????, ????? ??? ? ?? ?? ??? ??? ? ??????? ?? ???? ?? ?? ?? ? ??? ? ?? 50 ??? ?? ???? ????? ciphertext congress ?? ?????? ??? sessions ?? ? Senate ?? representatives Meeting ?? ??? ?? ??? speeches ?? ?? ? ?? ? ?? ?? ??? ?? ???? ??????

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