#include "../lib/lib.h"
#include "../lib/lib2.h"
#include "../lib/lib3.h"
#include "../lib/lib4.h"
#include "../lib/lib5.h"
#include <time.h>

int main()
{
	// sha1 key
	srand(time(NULL));
	char key[20];
	char hex_key[40];
	char *encrypted;
	char *msg = "Hallo verschlüssele mich bitte";
	struct dh_param dh;

	dh_init(&dh);
	// 1^X is always one; so the modulo will always be one for p > 1
	// g = p; p^X mod p is always 0 because its a multiple of p
	// g = p-1; (p-1)^X mod p; not all rest groups are used, or some
	// much more likely?
	dh.p = "8";
	dh.g = "7";
	int i;
	for(i=0;i<10000;i++) {
		dh_generate_secret_keys(&dh);
		dh_generate_public_keys(&dh);
		dh_get_session_key(&dh);
	}

	sha1_key_from_dh(&dh, key);
	hex_binary_to_string(key, hex_key, 20);
	//printf("key is: %s\n", hex_key);

	// encrypt a message with AES-CBC
	generate_random_bytes(iv, 16);

	int enc_length = aes_cbc_padded(msg, strlen(msg), &encrypted, key, iv, 1);
	char *hex_enc = malloc(enc_length + 16);
	hex_binary_to_string(encrypted, hex_enc, enc_length);
	//printf("encryted message: %s\n", hex_enc);



}