XOREncryption/C/main.c

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C
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2013-10-06 23:26:28 +04:00
#include <stdio.h>
#include <string.h>
void encryptDecrypt(char *input, char *output) {
char key[] = {'K', 'C', 'Q'}; //Can be any chars, and any size array
int i;
for(i = 0; i < strlen(input); i++) {
output[i] = input[i] ^ key[i % (sizeof(key)/sizeof(char))];
}
}
int main (int argc, char *argv[]) {
char baseStr[] = "kylewbanks.com";
char encrypted[strlen(baseStr)];
encryptDecrypt(baseStr, encrypted);
printf("Encrypted:%s\n", encrypted);
char decrypted[strlen(baseStr)];
encryptDecrypt(encrypted, decrypted);
printf("Decrypted:%s\n", decrypted);
}