1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*******************************************************************************
* Copyright 2010-2018 Intel Corporation
* All Rights Reserved.
*
* If this software was obtained under the Intel Simplified Software License,
* the following terms apply:
*
* The source code, information and material ("Material") contained herein is
* owned by Intel Corporation or its suppliers or licensors, and title to such
* Material remains with Intel Corporation or its suppliers or licensors. The
* Material contains proprietary information of Intel or its suppliers and
* licensors. The Material is protected by worldwide copyright laws and treaty
* provisions. No part of the Material may be used, copied, reproduced,
* modified, published, uploaded, posted, transmitted, distributed or disclosed
* in any way without Intel's prior express written permission. No license under
* any patent, copyright or other intellectual property rights in the Material
* is granted to or conferred upon you, either expressly, by implication,
* inducement, estoppel or otherwise. Any license under such intellectual
* property rights must be express and approved by Intel in writing.
*
* Unless otherwise agreed by Intel in writing, you may not remove or alter this
* notice or any other notice embedded in Materials by Intel or Intel's
* suppliers or licensors in any way.
*
*
* If this software was obtained under the Apache License, Version 2.0 (the
* "License"), the following terms apply:
*
* 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:
// Intel(R) Integrated Performance Primitives. Cryptography Primitives.
// EC over GF(p) Operations
//
// Context:
// ippsGFpECSetPoint()
//
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcpgfpecstuff.h"
#include "pcphash.h"
#include "pcphash_rmf.h"
/*F*
// Name: ippsGFpECSetPoint
//
// Purpose: Sets a point on an elliptic curve
//
// Returns: Reason:
// ippStsNullPtrErr pPoint == NULL
// pEC == NULL
// pX == NULL
// pY == NULL
//
// ippStsContextMatchErr invalid pEC->idCtx
// invalid pPoint->idCtx
// invalid pX->idCtx
// invalid pY->idCtx
//
// ippStsOutOfRangeErr ECP_POINT_FELEN(pX)!=GFP_FELEN()
// ECP_POINT_FELEN(pY)!=GFP_FELEN()
// ECP_POINT_FELEN(pPoint)!=GFP_FELEN()
//
// ippStsNoErr no error
//
// Parameters:
// pX, pY Pointers to the X and Y coordinates of a point on the elliptic curve
// pPoint Pointer to the IppsGFpECPoint context
// pEC Pointer to the context of the elliptic curve
//
*F*/
IPPFUN(IppStatus, ippsGFpECSetPoint,(const IppsGFpElement* pX, const IppsGFpElement* pY,
IppsGFpECPoint* pPoint,
IppsGFpECState* pEC))
{
IPP_BAD_PTR2_RET(pPoint, pEC);
pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) );
IPP_BADARG_RET( !ECP_TEST_ID(pEC), ippStsContextMatchErr );
IPP_BADARG_RET( !ECP_POINT_TEST_ID(pPoint), ippStsContextMatchErr );
IPP_BAD_PTR2_RET(pX, pY);
IPP_BADARG_RET( !GFPE_TEST_ID(pX), ippStsContextMatchErr );
IPP_BADARG_RET( !GFPE_TEST_ID(pY), ippStsContextMatchErr );
IPP_BADARG_RET( GFPE_ROOM(pX)!=GFP_FELEN(GFP_PMA(ECP_GFP(pEC))), ippStsOutOfRangeErr);
IPP_BADARG_RET( GFPE_ROOM(pY)!=GFP_FELEN(GFP_PMA(ECP_GFP(pEC))), ippStsOutOfRangeErr);
IPP_BADARG_RET( ECP_POINT_FELEN(pPoint)!=GFP_FELEN(GFP_PMA(ECP_GFP(pEC))), ippStsOutOfRangeErr);
if(gfec_SetPoint(ECP_POINT_DATA(pPoint), GFPE_DATA(pX), GFPE_DATA(pY), pEC))
ECP_POINT_FLAGS(pPoint) = ECP_AFFINE_POINT | ECP_FINITE_POINT;
else
ECP_POINT_FLAGS(pPoint) = 0;
return ippStsNoErr;
}
|
