#include

void encryptCaesar(char*, unsigned char); void decryptCaesar(char*, unsigned char); void toUpper(char*);

int main() { char plain[] = "Friends, Romans, countrymen, lend me your ears"; char cipher[] = "Mvez, mzuz, mztz (Z trdv, Z jrn, Z tfehlvivu)";

printf("%s ", plain); toUpper(plain); printf("%s ", plain); encryptCaesar(plain, 5); printf("%s ", plain); decryptCaesar(plain, 5); printf("%s ", plain);

return 0; }

void toUpper(char *text) { int i = 0; while (text[i] != '\0') { if (text[i] >= 'a' && text[i] <= 'z') { text[i] -= 32; } i++; } }

void encryptCaesar(char *plaintext, unsigned char key) { 1,1 Top