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- #include "stdlib.h"
- #include "string.h"
- #include "pve_qe_common.h"
- #include "assert.h"
- #include "util.h"
- #include "sgx_trts.h"
- #include "isk_pub.hh"
- IppStatus new_std_256_ecp(IppsECCPState **pp_new_ecp)
- {
- int ctx_size = 0;
- IppStatus ipp_ret = ippStsNoErr;
- IppsECCPState* p_ctx = NULL;
- ipp_ret = ippsECCPGetSize(256, &ctx_size);
- if(ippStsNoErr != ipp_ret)
- return ipp_ret;
- p_ctx = (IppsECCPState*)malloc(ctx_size);
- if(NULL == p_ctx)
- return ippStsNoMemErr;
- ipp_ret = ippsECCPInit(256, p_ctx);
- if(ippStsNoErr != ipp_ret)
- {
- free(p_ctx);
- return ipp_ret;
- }
- ipp_ret = ippsECCPSetStd(IppECCPStd256r1, p_ctx);
- if(ippStsNoErr != ipp_ret)
- {
- free(p_ctx);
- return ipp_ret;
- }
- *pp_new_ecp = p_ctx;
- return ipp_ret;
- }
- void secure_free_std_256_ecp(IppsECCPState *p_ecp)
- {
- int ctx_size = 0;
- IppStatus ipp_ret = ippStsNoErr;
- if(p_ecp)
- {
- ipp_ret = ippsECCPGetSize(256, &ctx_size);
- if(ippStsNoErr == ipp_ret)
- memset_s(p_ecp, ctx_size, 0, ctx_size);
- free(p_ecp);
- }
- return;
- }
- int __STDCALL 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 ippStsErr;
- return ippStsNoErr;
- }
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