#include <time.h>
#include "aes128.h"
#include "driver.h"
#include "md5.h"
#include "aes_cmac.h"

void drv_reset(int mask)
{
	// dummy
}


static int BCD(int d) 
{
	return d+(int)(d/10)*6;
}

void convert(int year, int month, int date, int dow, int hour, int minutes, int sec, uint8 *p)
{
	*p++ = BCD(year/100);
	*p++ = BCD(year%100);
	*p++ = BCD(month);
	*p++ = BCD(date);
	*p++ = BCD(dow);
	*p++ = BCD(hour);
	*p++ = BCD(minutes);
	*p   = BCD(sec);
}

uint8 *drv_rtc_get_bin()
{
	struct tm *tm;
	time_t t;
	static uint8 buf[8];

	// for software use POSIX stdlib
	time(&t);
	tm = localtime(&t);

	convert(tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
	   tm->tm_hour, tm->tm_min, tm->tm_sec, buf);

	return buf;
}

void drv_AES_crypt(uint *msg, uint8 *key)
{
	AES128_crypt(msg, key);
}

void drv_AES_decrypt(uint *msg, uint8 *key)
{
	AES128_decrypt(msg, key);
}

static md5_context ctx;
static unsigned char md5sum[16];

uint8 *drv_MD5(int n, uint8 *msg, uint8 *key)
{
	md5_starts(&ctx);
	md5_update(&ctx, msg, n);
	md5_finish(&ctx, md5sum);
	return md5sum;
}

ODAT *drv_AES_cmac(KEY128 *K, u128 *M, int n)
{
    return (ODAT*)AES_cmac((uint8 *)K, (uint *)M, n);
}

/*  vi:expandtab:foldmethod=syntax:sw=2:ts=2  */