Basically have to enter a message and a shift amount and then the encrypted message will display the new character array. For example if i input: hello...with a shift of two, the new message would be: jfnnq
I'm having trouble in the actual shifting part of it as i though you could just add the int shift to each character in the array, because of the ascii codes. Also i have to make sure capitals stay capitalized, punctuation stays the same, and spaces stay the same.
Here is my code so far:
Any suggestions?
I'm having trouble in the actual shifting part of it as i though you could just add the int shift to each character in the array, because of the ascii codes. Also i have to make sure capitals stay capitalized, punctuation stays the same, and spaces stay the same.
Here is my code so far:
#include <stdio.h> #include <stdlib.h> int main() { int key = 0; int count = 1; int j = 0; char ch; char array[] = {0}; printf("Enter message to be encrypted: "); ch = getchar(); for (j = 0; j <= 80; j++) { if(ch == '\n') break; else { ch = getchar(); count++; } } printf("Enter shift amount (1-25): "); scanf("%d", &key); printf("Encrypted message: "); for(int k = 0; k < j ; k++) { if(array[k] >= 0 && array[k] <= 64) { printf("%c", array[k]); } else if (array[k] == ' ') { printf(" "); } else { printf("%c", array[k] + key); } } printf("\n"); system("PAUSE"); return 0; }
Any suggestions?