Fix incorrect assumption

aes-32bit/aes.cpp

@@ -188,7 +188,7 @@ void aes(uint8_t *in, uint8_t *out, uint8_t *skey)
 //****************************
 int main(int argc, char* argv[])
 {
-    if (argc > 1) {
+    if (argc > 2) {
         std::cerr << "Invalid number of arguments\n";
         exit(EXIT_FAILURE);
     }