mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
lzha101
83 lines
3.2 KiB
C++
83 lines
3.2 KiB
C++
/*
|
|
* Copyright (C) 2011-2021 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.
|
|
*
|
|
*/
|
|
|
|
/* Content from sdk/simulation/tinst/deriv.cpp */
|
|
|
|
#include "t_instructions.h" /* for `g_global_data_sim' */
|
|
#include "deriv.h"
|
|
#include <sgx_tseal.h>
|
|
#include <pcl_common.h>
|
|
#include <pcl_unseal_internal.h>
|
|
|
|
extern global_data_sim_t g_global_data_sim;
|
|
|
|
int pcl_cmac(const sgx_cmac_128bit_key_t *p_key, const uint8_t *p_src,
|
|
uint32_t src_len, sgx_cmac_128bit_tag_t *p_mac);
|
|
|
|
// The built-in seal key in simulation mode
|
|
static const uint8_t PCL_BASE_SEAL_KEY[] = {
|
|
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
|
|
0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
|
|
};
|
|
|
|
static const uint8_t* pcl_get_base_key(uint16_t key_name)
|
|
{
|
|
// Shouldn't use switch else requires relocation
|
|
/* PCL UNUSED START
|
|
switch (key_name) {
|
|
case SGX_KEYSELECT_SEAL:
|
|
return BASE_SEAL_KEY;
|
|
case SGX_KEYSELECT_REPORT:
|
|
return BASE_REPORT_KEY;
|
|
case SGX_KEYSELECT_EINITTOKEN:
|
|
return BASE_EINITTOKEN_KEY;
|
|
case SGX_KEYSELECT_PROVISION:
|
|
return BASE_PROVISION_KEY;
|
|
case SGX_KEYSELECT_PROVISION_SEAL:
|
|
return BASE_PROV_SEAL_KEY;
|
|
}
|
|
PCL UNUSED END */
|
|
if (key_name == SGX_KEYSELECT_SEAL) return PCL_BASE_SEAL_KEY;
|
|
|
|
// Should not come here - error should have been reported
|
|
// when the key name is not supported in the caller.
|
|
return (uint8_t*)0;
|
|
}
|
|
|
|
// Compute the CMAC of derivation data with corresponding base key
|
|
// and save it to `okey'.
|
|
void pcl_derive_key(const derivation_data_t* dd, sgx_key_128bit_t okey)
|
|
{
|
|
const uint8_t* base_key = pcl_get_base_key(dd->key_name);
|
|
pcl_cmac((const sgx_cmac_128bit_key_t*)base_key,dd->ddbuf, dd->size, (sgx_cmac_128bit_tag_t*)okey);
|
|
}
|
|
|