/* crypto/camellia/camellia.h */
/* ====================================================================
* Copyright (c) 2006 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
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*
* 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
* [email protected].
*
* 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
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* ====================================================================
*
*/

#ifndef HEADER_CAMELLIA_H
# define HEADER_CAMELLIA_H

# include <openssl/opensslconf.h>

# ifdef OPENSSL_NO_CAMELLIA
# error CAMELLIA is disabled.
# endif

# include <stddef.h>

# define CAMELLIA_ENCRYPT 1
# define CAMELLIA_DECRYPT 0

/*
* Because array size can't be a const in C, the following two are macros.
* Both sizes are in bytes.
*/

#ifdef __cplusplus
extern "C" {
#endif

/* This should be a hidden type, but EVP requires that the size be known */

# define CAMELLIA_BLOCK_SIZE 16
# define CAMELLIA_TABLE_BYTE_LEN 272
# define CAMELLIA_TABLE_WORD_LEN (CAMELLIA_TABLE_BYTE_LEN / 4)

typedef unsigned int KEY_TABLE_TYPE[CAMELLIA_TABLE_WORD_LEN]; /* to match
* with WORD */

struct camellia_key_st {
union {
double d; /* ensures 64-bit align */
KEY_TABLE_TYPE rd_key;
} u;
int grand_rounds;
};
typedef struct camellia_key_st CAMELLIA_KEY;

# ifdef OPENSSL_FIPS
int private_Camellia_set_key(const unsigned char *userKey, const int bits,
CAMELLIA_KEY *key);
# endif
int Camellia_set_key(const unsigned char *userKey, const int bits,
CAMELLIA_KEY *key);

void Camellia_encrypt(const unsigned char *in, unsigned char *out,
const CAMELLIA_KEY *key);
void Camellia_decrypt(const unsigned char *in, unsigned char *out,
const CAMELLIA_KEY *key);

void Camellia_ecb_encrypt(const unsigned char *in, unsigned char *out,
const CAMELLIA_KEY *key, const int enc);
void Camellia_cbc_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, const int enc);
void Camellia_cfb128_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc);
void Camellia_cfb1_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc);
void Camellia_cfb8_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc);
void Camellia_ofb128_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num);
void Camellia_ctr128_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const CAMELLIA_KEY *key,
unsigned char ivec[CAMELLIA_BLOCK_SIZE],
unsigned char ecount_buf[CAMELLIA_BLOCK_SIZE],
unsigned int *num);

#ifdef __cplusplus
}
#endif

#endif /* !HEADER_Camellia_H */