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/* des3.h
*
* Copyright (C) 2006-2026 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/*!
\file wolfssl/wolfcrypt/des3.h
*/
#ifndef WOLF_CRYPT_DES3_H
#define WOLF_CRYPT_DES3_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_DES3
#if defined(HAVE_FIPS) && defined(HAVE_FIPS_VERSION) && \
(HAVE_FIPS_VERSION == 2 || HAVE_FIPS_VERSION == 3)
#include <wolfssl/wolfcrypt/fips.h>
#endif /* HAVE_FIPS_VERSION >= 2 */
#ifdef __cplusplus
extern "C" {
#endif
/* these are required for FIPS and non-FIPS */
enum {
DES_KEY_SIZE = 8, /* des */
DES3_KEY_SIZE = 24, /* 3 des ede */
DES_IV_SIZE = 8 /* should be the same as DES_BLOCK_SIZE */
};
/* avoid redefinition of structs */
#if !defined(HAVE_FIPS) || (defined(HAVE_FIPS_VERSION) && \
HAVE_FIPS_VERSION >= 2)
#ifdef WOLFSSL_ASYNC_CRYPT
#include <wolfssl/wolfcrypt/async.h>
#endif
#ifdef WOLFSSL_SE050
/* SE050 SDK also defines DES_BLOCK_SIZE */
#undef DES_BLOCK_SIZE
#endif
enum {
DES_ENC_TYPE = WC_CIPHER_DES, /* cipher unique type */
DES3_ENC_TYPE = WC_CIPHER_DES3, /* cipher unique type */
DES_BLOCK_SIZE = 8,
DES_KS_SIZE = 32, /* internal DES key buffer size */
DES_ENCRYPTION = 0,
DES_DECRYPTION = 1
};
#define DES_IVLEN 8
#define DES_KEYLEN 8
#define DES3_IVLEN 8
#define DES3_KEYLEN 24
#if defined(STM32_CRYPTO)
#include <wolfssl/wolfcrypt/port/st/stm32.h>
enum {
DES_CBC = 0,
DES_ECB = 1
};
#endif
/* DES encryption and decryption */
typedef struct Des {
word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
word32 key[DES_KS_SIZE];
} Des;
/* DES3 encryption and decryption */
struct Des3 {
word32 key[3][DES_KS_SIZE];
word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
#ifdef WOLFSSL_ASYNC_CRYPT
WC_ASYNC_DEV asyncDev;
#endif
#if defined(WOLF_CRYPTO_CB) || \
(defined(WOLFSSL_ASYNC_CRYPT) && defined(WC_ASYNC_ENABLE_3DES))
word32 devKey[DES3_KEYLEN/sizeof(word32)]; /* raw key */
#endif
#ifdef WOLF_CRYPTO_CB
int devId;
void* devCtx;
#endif
void* heap;
};
#ifndef WC_DES3_TYPE_DEFINED
typedef struct Des3 Des3;
#define WC_DES3_TYPE_DEFINED
#endif
#endif /* HAVE_FIPS && HAVE_FIPS_VERSION >= 2 */
WOLFSSL_API int wc_Des_SetKey(Des* des, const byte* key,
const byte* iv, int dir);
WOLFSSL_API void wc_Des_SetIV(Des* des, const byte* iv);
WOLFSSL_API int wc_Des_CbcEncrypt(Des* des, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_Des_CbcDecrypt(Des* des, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_Des_EcbEncrypt(Des* des, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_Des3_EcbEncrypt(Des3* des, byte* out,
const byte* in, word32 sz);
#ifdef FREESCALE_MMCAU /* Has separate encrypt/decrypt functions */
WOLFSSL_API int wc_Des_EcbDecrypt(Des* des, byte* out,
const byte* in, word32 sz);
WOLFSSL_API int wc_Des3_EcbDecrypt(Des3* des, byte* out,
const byte* in, word32 sz);
#else
/* ECB decrypt same process as encrypt but with decrypt key */
#define wc_Des_EcbDecrypt wc_Des_EcbEncrypt
#define wc_Des3_EcbDecrypt wc_Des3_EcbEncrypt
#endif
WOLFSSL_API int wc_Des3_SetKey(Des3* des, const byte* key,
const byte* iv,int dir);
WOLFSSL_API int wc_Des3_SetIV(Des3* des, const byte* iv);
WOLFSSL_API int wc_Des3_CbcEncrypt(Des3* des, byte* out,
const byte* in,word32 sz);
WOLFSSL_API int wc_Des3_CbcDecrypt(Des3* des, byte* out,
const byte* in,word32 sz);
/* These are only required when using either:
static memory (WOLFSSL_STATIC_MEMORY) or asynchronous (WOLFSSL_ASYNC_CRYPT) */
WOLFSSL_API int wc_Des3Init(Des3* des3, void* heap, int devId);
WOLFSSL_API void wc_Des3Free(Des3* des3);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* NO_DES3 */
#endif /* WOLF_CRYPT_DES3_H */