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3808 - ADFGVX
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== ADFGVX == Cifrul ADFGVX este un cifru ce folosește o matrice '''6x6''' care conţine literele alfabetului englez si cifre. Cifrul functioneaza asa: se citeste matricea, un mesajul si o cheie. In matrice, linia '''1''' si coloana '''1''' au codul '''A''', linia '''2''' si coloana '''2''' au codul '''D''', linia '''3''' si coloana '''3''' au codul '''F''', linia '''4''' si coloana '''4''' au codul '''G''', linia '''5''' si coloana '''5''' au codul '''V''', iar linia '''6''' si coloana '''6''' au codul '''X'''. Fiecare litera din mesaj este inlocuita cu un codul liniei si coloanei pe care se afla in matrice. literele codurilor obtinute sunt puse intr-o matrice care are atatea coloane cate caractere are cheia(ultima linie a noii matrici poate fi incompleta). coloanele noii matrici au codul literei din cheie de pe pozitia egala cu numarul de ordine al coloanei. coloanele sunt sortate in functie de ordinea alfabetica al literei pe care o au asociata. In final se afiseaza matricea noua parcursa pe coloane (pentru a fi mai clar, literele se afiseaza fara spatii intre ele, iar cand se trece pe o noua coloana, se va pune un spatiu).
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