1. Write a program in Python to implement Vigenere Cliphering and deciphering schemes. The Vignere cipher uses a pass phrase to encrypt and decrypt. For example, to encrypt "hello world" with a pass phrase "seal", the pass phrase is repeated over and over again in order to align with the whole plain text. The letter from the pass phrase marks the row and the letter from the plain text marks the column. The encrypted letter is found based on row and column numbers from the following Figure 1 a b cde f 8 h i j k 1 m n o p qr s t u v wx y z a a b c d e f g h ij kl m n o p q r s tu v w x y az b bcd e f gh ijklm n o p q rs tuv w x y za c cd e f g h i i k 1 m n o p qr s t u vw x y z a b d defghjk1mnoPqrstuvwxyzabc e e f g h i j k 1 m n o P qr s t u v wx y z a b cd f f g h i j k 1 m n o p arstu v W x y Z abcd e i ijk 1 m n o p q s tuvwxy z abcdef g h k k Im n o p q r s t u v wx y z abc def g h ! j 1 1mnopqrstuv, w a b c d e f g h i j k m mnop q r s t u v w y z a b c d e f g h j k l n n O P qr s t uVWKY zabc defsh ijklm SStu vwX y za b s d e f g h i k nopa n