[Cryptography] Venecal Password

xiaoxiao2021-03-06  22

In the late 16th century, people who want to get higher confidentiality have won a more refined password table. French diplomatic Blaise de Vigenère invents a method to encrypt different from different letters in the same information. Thus, the same e can be replaced by M in one position, and E of another position may appear in the face of K. In this way, anyone can prevent the information from using the frequency analysis method. Veal Nar Code Table

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 ZA 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 B 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 A C C D E F G H I J K L M N O P Q R S T U V W X Y Z A B D D E F G H I J K L M N O P Q R S T U V W X Y Z A B C E E F G H I J K L M N O P Q R S T U V W X Y Z A B C D F F G H I J K L M N O P Q R S T U V W X Y Z A B C D E G G H I J K L M N O P Q R S T U V W X Y Z A B C D E F H H I J K L M N O P Q R S T U V W X Y Z A B C D E F G I I J K L M N O P Q R S T U V W X Y Z A B C D E F G H J J K L M N O P Q R S T U V W X Y Z A B C D E F G H I K K L M N O P Q R S T U V W X Y Z A B C D E F G H I J L L M N O P Q R S T U V W X Y Z A B C D E F G H I J K M M N O P Q R S T U V W X Y Z A B C D E F G H I J K L N N O P Q R S T U V W X Y Z A B C D E F G H I J K L M O O P Q R S T U V W X Y Z A B C D E F G H I J K L M N P P Q R S T U V W X Y Z A B C D E F G H I J K L M N O Q Q R S T U V W X Y Z A B C D E F G H IJKLMNOPR RSTUVWXYZABCDEFGHIJKL MNOPQS STUVWXYZABCDEFGHIJKLM NOPQR T TUVWXYZABCDEFGHIJKLMN OPQRSU UVWXYZABCDEFGHIJKLMNO PQRSTV VWXYZABCDEFGHIJKLMNOP QRSTUW WXYZABCDEFGHIJKLMNOPQ RSTUVX XYZABCDEFGHIJKLMNOPQR STUVWY YZABCDEFGHIJKLMNOPQRS TUVWXZ ZABCDEFGHIJKLMNOPQRST UVWXY in dimensional heat Canal (Vigenère) password, the sender and receiver must use the same keyword (or the same text chapters ), The letters in this keyword or text chapter tell them how to change the location of the letter before and after obtaining the correct correspondence of each letter in this segment. For example, if the keyword "BIG" is used, the sender will arrange the information in order of three letters.

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