mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Li, Xun
115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2011-2020 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.
|
|
*
|
|
*/
|
|
|
|
#include "stdlib.h"
|
|
#include "string.h"
|
|
#include "pve_qe_common.h"
|
|
#include "assert.h"
|
|
#include "util.h"
|
|
#include "sgx_trts.h"
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
#include "epid/common/src/memory.h"
|
|
#include "epid/member/software_member.h"
|
|
#include "epid/member/src/write_precomp.h"
|
|
#include "epid/member/src/signbasic.h"
|
|
#include "epid/member/src/nrprove.h"
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
int epid_random_func(
|
|
unsigned int *p_random_data,
|
|
int bits,
|
|
void* p_user_data)
|
|
{
|
|
UNUSED(p_user_data);
|
|
assert(!(bits % 8));
|
|
|
|
if(SGX_SUCCESS != sgx_read_rand((uint8_t *)p_random_data,
|
|
ROUND_TO(bits, 8) / 8))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
EpidStatus epid_member_create(BitSupplier rnd_func, void* rnd_param, FpElemStr* f, MemberCtx** ctx)
|
|
{
|
|
MemberParams params;
|
|
size_t member_size = 0;
|
|
EpidStatus epid_ret = kEpidNoErr;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
params.rnd_func = rnd_func;
|
|
params.rnd_param = rnd_param;
|
|
params.f = f;
|
|
|
|
epid_ret = EpidMemberGetSize(¶ms, &member_size);
|
|
if (kEpidNoErr != epid_ret) {
|
|
return epid_ret;
|
|
}
|
|
|
|
*ctx = (MemberCtx*)SAFE_ALLOC(member_size);
|
|
if (!(*ctx)) {
|
|
return kEpidNoMemErr;
|
|
}
|
|
|
|
epid_ret = EpidMemberInit(¶ms, *ctx);
|
|
if (kEpidNoErr != epid_ret) {
|
|
SAFE_FREE(*ctx);
|
|
*ctx = NULL;
|
|
return epid_ret;
|
|
}
|
|
|
|
epid_ret = EpidMemberSetHashAlg(*ctx, kSha256);
|
|
if (kEpidNoErr != epid_ret) {
|
|
goto ret_point;
|
|
}
|
|
|
|
ret_point:
|
|
if (kEpidNoErr != epid_ret) {
|
|
epid_member_delete(ctx);
|
|
}
|
|
return epid_ret;
|
|
}
|
|
|
|
void epid_member_delete(MemberCtx** ctx)
|
|
{
|
|
if (!ctx) {
|
|
return;
|
|
}
|
|
EpidMemberDeinit(*ctx);
|
|
SAFE_FREE(*ctx);
|
|
*ctx = NULL;
|
|
}
|