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https://github.com/intel/linux-sgx
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lzha101
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (C) 2011-2021 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**
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* File:
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* dh.cpp
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*Description:
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* Encrypt and decrypt messages over DH session
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*/
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#include "dh.h"
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#include "sgx_tcrypto.h"
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bool encrypt_msg(pse_message_t* pse_msg, uint8_t* data, sgx_key_128bit_t* authenticated_encryption_key)
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{
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/* get random IV */
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if(sgx_read_rand(pse_msg->payload_iv, PAYLOAD_IV_SIZE) != SGX_SUCCESS)
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{
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return false;
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}
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return (SGX_SUCCESS == sgx_rijndael128GCM_encrypt(
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authenticated_encryption_key,
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data,
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pse_msg->payload_size,
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reinterpret_cast<uint8_t *>(&(pse_msg->payload)),
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reinterpret_cast<uint8_t *>(&(pse_msg->payload_iv)),
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12,
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NULL,
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0,
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&pse_msg->payload_tag
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));
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}
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bool decrypt_msg(pse_message_t* pse_msg, uint8_t* data, sgx_key_128bit_t* authenticated_encryption_key)
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{
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return(SGX_SUCCESS == sgx_rijndael128GCM_decrypt(
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authenticated_encryption_key,
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pse_msg->payload,
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pse_msg->payload_size,
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data,
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reinterpret_cast<uint8_t *>(&(pse_msg->payload_iv)),
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12,
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NULL,
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0,
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&pse_msg->payload_tag
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));
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}
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