linux-sgx-trts-modified/sdk/tseal/tSeal_internal.h

/*
 * Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
 *
 * 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.
 *   * Neither the name of Intel Corporation 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 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
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 */


#ifndef _TSEAL_INTERNAL_H_
#define _TSEAL_INTERNAL_H_

#include <stdint.h>
#include "sgx_tseal.h"

/* Set the bits which have no security implications to 0 for sealed data migration */
/* Bits which have no security implications in attributes.flags:
 *    Reserved bit[55:6]  - 0xFFFFFFFFFFFFC0ULL
 *    SGX_FLAGS_MODE64BIT
 *    SGX_FLAGS_PROVISION_KEY
 *    SGX_FLAGS_EINITTOKEN_KEY */
#define FLAGS_NON_SECURITY_BITS     (0xFFFFFFFFFFFFC0ULL | SGX_FLAGS_MODE64BIT | SGX_FLAGS_PROVISION_KEY| SGX_FLAGS_EINITTOKEN_KEY)
#define TSEAL_DEFAULT_FLAGSMASK     (~FLAGS_NON_SECURITY_BITS)

#define MISC_NON_SECURITY_BITS      0x0FFFFFFF  /* bit[27:0]: have no security implications */
#define TSEAL_DEFAULT_MISCMASK      (~MISC_NON_SECURITY_BITS)


#ifdef __cplusplus
extern "C" {
#endif

    sgx_status_t sgx_seal_data_iv(const uint32_t additional_MACtext_length,
        const uint8_t *p_additional_MACtext, const uint32_t text2encrypt_length,
        const uint8_t *p_text2encrypt, const uint8_t *p_payload_iv,
        const sgx_key_request_t* p_key_request, sgx_sealed_data_t *p_sealed_data);

    sgx_status_t sgx_unseal_data_helper(const sgx_sealed_data_t *p_sealed_data, uint8_t *p_additional_MACtext,
        uint32_t additional_MACtext_length, uint8_t *p_decrypted_text,
        uint32_t decrypted_text_length);

#ifdef __cplusplus
}
#endif

#endif