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/*
 * 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.
 *
 */
/* ====================================================================
 * Copyright (c) 1998-2007 The OpenSSL Project.  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. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 THE OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#ifndef HEADER_SEED_H
# define HEADER_SEED_H

# include <openssl/opensslconf.h>
# include <openssl/e_os2.h>
# include <openssl/crypto.h>

# ifdef OPENSSL_NO_SEED
#  error SEED is disabled.
# endif

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

# if !defined(NO_SYS_TYPES_H)
#  include <sys/types.h>
# endif

# define SEED_BLOCK_SIZE 16
# define SEED_KEY_LENGTH 16


#ifdef  __cplusplus
extern "C" {
#endif

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

# ifdef OPENSSL_FIPS
void private_SEED_set_key(const unsigned char rawkey[SEED_KEY_LENGTH],
                          SEED_KEY_SCHEDULE *ks);
# endif
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                          /* HEADER_SEED_H */