aes.h

/*
 * OpenSSL compatible AES header
 * 
 * Copyright (c) 2017 Fabrice Bellard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#ifndef AES_H
#define AES_H

#define AES_MAXNR 14
#define AES_BLOCK_SIZE 16

struct aes_key_st {
    uint32_t rd_key[4 *(AES_MAXNR + 1)];
    int rounds;
};
typedef struct aes_key_st AES_KEY;

int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
	AES_KEY *key);
int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
	AES_KEY *key);

void AES_encrypt(const unsigned char *in, unsigned char *out,
	const AES_KEY *key);
void AES_decrypt(const unsigned char *in, unsigned char *out,
	const AES_KEY *key);
void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
		     const unsigned long length, const AES_KEY *key,
		     unsigned char *ivec, const int enc);

#endif