9780023606922, Chapter 1, Problem 4E

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Chapter Problem 4E Step step solution Step Plain Text to Cipher Text Program One popular cryptographic method for encoding message substituting letter for each letter of the This kind substitution essentially permutation of 26 letters of the so we can uniquely decipher cipher text by reading the substitution backwards Consider following program: program will read one string from the user and print* corresponding ciphered text section #include #include #include #include Substituting another alphabet for each (char* ( ( ) ) Step Encode/cipher the given text according the substitution scheme char* ( char for ( Saving ASCII values of A-2 sequentially array ) 26): strien(t) ( ( cases are first converted to upper cases ) ) ) Step function program int main() gets(t) printf("Cipher ) Step Sample Output: Enter Hello World Cipher Text: KSGGQ