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/*############################################################################
# Copyright 1999-2018 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
############################################################################*/
/*
//
// Purpose:
// Cryptography Primitive.
// EC over Prime Finite Field (setup/retrieve domain parameters)
//
// Contents:
// ippsECCPSetStd256r1()
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcpeccp.h"
/*
// Set EC256r1 parameters
*/
IPPFUN(IppStatus, ippsECCPSetStd256r1, (IppsECCPState* pEC))
{
/* test pEC */
IPP_BAD_PTR1_RET(pEC);
/* use aligned EC context */
pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) );
/* set domain parameters */
return ECCPSetDP(ippsGFpMethod_p256r1(),
BITS_BNU_CHUNK(256), secp256r1_p,
BITS_BNU_CHUNK(256), secp256r1_a,
BITS_BNU_CHUNK(256), secp256r1_b,
BITS_BNU_CHUNK(256), secp256r1_gx,
BITS_BNU_CHUNK(256), secp256r1_gy,
BITS_BNU_CHUNK(256), secp256r1_r,
secp256r1_h,
pEC);
}
IPPFUN(IppStatus, ippsECCPBindGxyTblStd256r1,(IppsECCPState* pEC))
{
/* test pEC */
IPP_BAD_PTR1_RET(pEC);
/* use aligned EC context */
pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) );
IPP_BADARG_RET(!ECP_TEST_ID(pEC), ippStsContextMatchErr);
ECP_PREMULBP(pEC) = gfpec_precom_nistP256r1_fun();
return ippStsNoErr;
}
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