/*
 *
 *    Copyright (c) 2011-2015 Nest Labs, Inc.
 *    All rights reserved.
 *
 *    This document is the property of Nest. It is considered
 *    confidential and proprietary information.
 *
 *    This document may not be reproduced or transmitted in any form,
 *    in whole or in part, without the express written permission of
 *    Nest.
 *
 *    Description:
 *        Implementation of PolarSSL AES functions that maps calls onto OpenSSL's
 *        functions.
 */

#include "aes.h"

#include <stdio.h>

int aes_setkey_enc( aes_context *ctx, const unsigned char *key, unsigned int keysize )
{
    AES_set_encrypt_key(key, (int)keysize, ctx);
    return 0;
}

int aes_setkey_dec( aes_context *ctx, const unsigned char *key, unsigned int keysize )
{
    AES_set_decrypt_key(key, (int)keysize, ctx);
    return 0;
}


int aes_crypt_ecb( aes_context *ctx,
                    int mode,
                    const unsigned char input[16],
                    unsigned char output[16] )
{
    /* Only encryption supported (and needed) for now.
     */
    if (mode != AES_ENCRYPT)
        return -1;
    AES_encrypt(input, output, ctx);
    return 0;
}