/*
* Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/

/*
* Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Neither the name of author nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef HEADER_SEED_H
# define HEADER_SEED_H

# include <openssl/opensslconf.h>

# ifndef OPENSSL_NO_SEED
# include <openssl/e_os2.h>
# include <openssl/crypto.h>

#ifdef __cplusplus
extern "C" {
#endif

/* look whether we need 'long' to get 32 bits */
# ifdef AES_LONG
# ifndef SEED_LONG
# define SEED_LONG 1
# endif
# endif

# include <sys/types.h>

# define SEED_BLOCK_SIZE 16
# define SEED_KEY_LENGTH 16

typedef struct seed_key_st {
# ifdef SEED_LONG
unsigned long data[32];
# else
unsigned int data[32];
# endif
} SEED_KEY_SCHEDULE;

void SEED_set_key(const unsigned char rawkey[SEED_KEY_LENGTH],
SEED_KEY_SCHEDULE *ks);

void SEED_encrypt(const unsigned char s[SEED_BLOCK_SIZE],
unsigned char d[SEED_BLOCK_SIZE],
const SEED_KEY_SCHEDULE *ks);
void SEED_decrypt(const unsigned char s[SEED_BLOCK_SIZE],
unsigned char d[SEED_BLOCK_SIZE],
const SEED_KEY_SCHEDULE *ks);

void SEED_ecb_encrypt(const unsigned char *in, unsigned char *out,
const SEED_KEY_SCHEDULE *ks, int enc);
void SEED_cbc_encrypt(const unsigned char *in, unsigned char *out, size_t len,
const SEED_KEY_SCHEDULE *ks,
unsigned char ivec[SEED_BLOCK_SIZE], int enc);
void SEED_cfb128_encrypt(const unsigned char *in, unsigned char *out,
size_t len, const SEED_KEY_SCHEDULE *ks,
unsigned char ivec[SEED_BLOCK_SIZE], int *num,
int enc);
void SEED_ofb128_encrypt(const unsigned char *in, unsigned char *out,
size_t len, const SEED_KEY_SCHEDULE *ks,
unsigned char ivec[SEED_BLOCK_SIZE], int *num);

# ifdef __cplusplus
}
# endif
# endif

#endif