Instructions: For this assignment you will write a program to implement Caesar c

Question

Instructions:
For this assignment you will write a program to implement Caesar cipher encryption algorithm. Normally the Caesar cipher works by shifting the letters of the alphabet forwards e.g., A become B, B becomes a C, C becomes a D...Y becomes a Z and Z becomes an A.. The program should prompt the user to type in a string of text “the message” and the encryption algorithms should “scramble” the message. Although the algorithm that you will implement is by necessity simple ones, they should provide an insight into how encryption can be used to protect data and how poor encryption can make it easy to guess the original message. You don't need to implement a decryption algorithm for this assignment.
Features to be implemented (you will also be graded on other criteria such as coding style and providing program documentation):

1. Your program should prompt the user to enter a phrase to be encrypted. Ideally your program should be able to encrypt more than a single word (words will be separated by spaces).
2. The program will quit when the user enter nothing.
3. The program should display both the message and the encrypted text on screen.

Explanation / Answer

#include #include int main(void) { char str[50],str1[50]; int n; printf("Enter your string: "); gets(str); strcpy(str1,str);//make a copy printf(" How much you want to shift: "); scanf("%d",&n); while(n>=26) //if the entered shift is greather than 26. n%=26; for(int i=0;i

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