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- /*
- * 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
- * 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.
- *
- */
- /**
- * File:
- * dh.cpp
- *Description:
- * Encrypt and decrypt messages over DH session
- */
- #include "dh.h"
- #include "sgx_tcrypto.h"
- bool encrypt_msg(pse_message_t* pse_msg, uint8_t* data, sgx_key_128bit_t* authenticated_encryption_key)
- {
- /* get random IV */
- if(sgx_read_rand(pse_msg->payload_iv, PAYLOAD_IV_SIZE) != SGX_SUCCESS)
- {
- return false;
- }
- return (SGX_SUCCESS == sgx_rijndael128GCM_encrypt(
- authenticated_encryption_key,
- data,
- pse_msg->payload_size,
- reinterpret_cast<uint8_t *>(&(pse_msg->payload)),
- reinterpret_cast<uint8_t *>(&(pse_msg->payload_iv)),
- 12,
- NULL,
- 0,
- &pse_msg->payload_tag
- ));
- }
- bool decrypt_msg(pse_message_t* pse_msg, uint8_t* data, sgx_key_128bit_t* authenticated_encryption_key)
- {
- return(SGX_SUCCESS == sgx_rijndael128GCM_decrypt(
- authenticated_encryption_key,
- pse_msg->payload,
- pse_msg->payload_size,
- data,
- reinterpret_cast<uint8_t *>(&(pse_msg->payload_iv)),
- 12,
- NULL,
- 0,
- &pse_msg->payload_tag
- ));
- }
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