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/* Microsoft Reference Implementation for TPM 2.0
*
* The copyright in this software is being made available under the BSD License,
* included below. This software may be subject to other third party and
* contributor rights, including patent rights, and no such rights are granted
* under this license.
*
* Copyright (c) Microsoft Corporation
*
* All rights reserved.
*
* BSD License
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER 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.
*/
//** Introduction
//
// This header file is used to 'splice' the OpenSSL library into the TPM code.
//
// The support required of a library are a hash module, a block cipher module and
// portions of a big number library.
#ifndef _TPM_TO_WOLF_SYM_H_
#define _TPM_TO_WOLF_SYM_H_
#if SYM_LIB == WOLF
#include <openssl/aes.h>
#include <openssl/des.h>
#include <openssl/bn.h>
#include <openssl/ossl_typ.h>
//***************************************************************
//** Links to the OpenSSL AES code
//***************************************************************
#ifdef TPM_ALG_SM4
#error "SM4 is not available"
#endif
#ifdef TPM_ALG_CAMELLIA
#error "Camellia is not available"
#endif
// Define the order of parameters to the library functions that do block encryption
// and decryption.
typedef void(*TpmCryptSetSymKeyCall_t)(
const BYTE *in,
BYTE *out,
void *keySchedule
);
// The Crypt functions that call the block encryption function use the parameters
// in the order:
// 1) keySchedule
// 2) in buffer
// 3) out buffer
// Since open SSL uses the order in encryptoCall_t above, need to swizzle the
// values to the order required by the library.
#define SWIZZLE(keySchedule, in, out) \
(const BYTE *)(in), (BYTE *)(out), (void *)(keySchedule)
// Macros to set up the encryption/decryption key schedules
//
// AES:
#define TpmCryptSetEncryptKeyAES(key, keySizeInBits, schedule) \
AES_set_encrypt_key((key), (keySizeInBits), (tpmKeyScheduleAES *)(schedule))
#define TpmCryptSetDecryptKeyAES(key, keySizeInBits, schedule) \
AES_set_decrypt_key((key), (keySizeInBits), (tpmKeyScheduleAES *)(schedule))
// TDES:
#define TpmCryptSetEncryptKeyTDES(key, keySizeInBits, schedule) \
TDES_set_encrypt_key((key), (keySizeInBits), (tpmKeyScheduleTDES *)(schedule))
#define TpmCryptSetDecryptKeyTDES(key, keySizeInBits, schedule) \
TDES_set_encrypt_key((key), (keySizeInBits), (tpmKeyScheduleTDES *)(schedule))
// Macros to alias encryption calls to specific algorithms. This should be used
// sparingly. Currently, only used by CryptRand.c
//
// When using these calls, to call the AES block encryption code, the caller
// should use:
// TpmCryptEncryptAES(SWIZZLE(keySchedule, in, out));
#define TpmCryptEncryptAES AES_encrypt
#define TpmCryptDecryptAES AES_decrypt
#define tpmKeyScheduleAES AES_KEY
#define TpmCryptEncryptTDES TDES_encrypt
#define TpmCryptDecryptTDES TDES_decrypt
#define tpmKeyScheduleTDES DES_key_schedule
typedef union tpmCryptKeySchedule_t tpmCryptKeySchedule_t;
#ifdef TPM_ALG_TDES
#include "TpmToOsslDesSupport_fp.h"
#endif
// This definition would change if there were something to report
#define SymLibSimulationEnd()
#endif // SYM_LIB == WOLF
#endif // _TPM_TO_WOLF_SYM_H_
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