1 /*******************************************************************************
2 * Copyright 2010-2018 Intel Corporation
3 * All Rights Reserved.
4 *
5 * If this software was obtained under the Intel Simplified Software License,
6 * the following terms apply:
7 *
8 * The source code, information and material ("Material") contained herein is
9 * owned by Intel Corporation or its suppliers or licensors, and title to such
10 * Material remains with Intel Corporation or its suppliers or licensors. The
11 * Material contains proprietary information of Intel or its suppliers and
12 * licensors. The Material is protected by worldwide copyright laws and treaty
13 * provisions. No part of the Material may be used, copied, reproduced,
14 * modified, published, uploaded, posted, transmitted, distributed or disclosed
15 * in any way without Intel's prior express written permission. No license under
16 * any patent, copyright or other intellectual property rights in the Material
17 * is granted to or conferred upon you, either expressly, by implication,
18 * inducement, estoppel or otherwise. Any license under such intellectual
19 * property rights must be express and approved by Intel in writing.
20 *
21 * Unless otherwise agreed by Intel in writing, you may not remove or alter this
22 * notice or any other notice embedded in Materials by Intel or Intel's
23 * suppliers or licensors in any way.
24 *
25 *
26 * If this software was obtained under the Apache License, Version 2.0 (the
27 * "License"), the following terms apply:
28 *
29 * You may not use this file except in compliance with the License. You may
30 * obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
31 *
32 *
33 * Unless required by applicable law or agreed to in writing, software
34 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
35 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
36 *
37 * See the License for the specific language governing permissions and
38 * limitations under the License.
39 *******************************************************************************/
40
41 /*
42 // Intel(R) Integrated Performance Primitives. Cryptography Primitives.
43 // Operations over GF(p) ectension.
44 //
45 // Context:
46 // pcpgfpec_initgfpxctx.c()
47 //
48 */
49
50 #include "owndefs.h"
51 #include "owncp.h"
52 #include "pcpgfpstuff.h"
53 #include "pcpgfpxstuff.h"
54 #include "pcptool.h"
55
56
57 /* the "static" specificator removed because of incorrect result under Linux-32, p8
58 what's wrong? not know maybe compiler (icl 2017)
59 need to check after switchng on icl 2018
60 */
61 /*static*/
InitGFpxCtx(const IppsGFpState * pGroundGF,int extDeg,const IppsGFpMethod * method,IppsGFpState * pGFpx)62 void InitGFpxCtx(const IppsGFpState* pGroundGF, int extDeg, const IppsGFpMethod* method, IppsGFpState* pGFpx)
63 {
64 gsModEngine* pGFEp = GFP_PMA(pGroundGF);
65 int elemLen = extDeg * GFP_FELEN(pGFEp);
66 int elemLen32 = extDeg * GFP_FELEN32(pGFEp);
67
68 Ipp8u* ptr = (Ipp8u*)pGFpx + sizeof(IppsGFpState);
69
70 /* context identifier */
71 GFP_ID(pGFpx) = idCtxGFP;
72 GFP_PMA(pGFpx) = (gsModEngine*)ptr;
73 {
74 gsModEngine* pGFEx = GFP_PMA(pGFpx);
75
76 /* clear whole context */
77 PaddBlock(0, ptr, sizeof(gsModEngine));
78 ptr += sizeof(gsModEngine);
79
80 GFP_PARENT(pGFEx) = pGFEp;
81 GFP_EXTDEGREE(pGFEx) = extDeg;
82 GFP_FEBITLEN(pGFEx) = 0;//elemBitLen;
83 GFP_FELEN(pGFEx) = elemLen;
84 GFP_FELEN32(pGFEx) = elemLen32;
85 GFP_PELEN(pGFEx) = elemLen;
86 GFP_METHOD(pGFEx) = method->arith;
87 GFP_MODULUS(pGFEx) = (BNU_CHUNK_T*)(ptr); ptr += elemLen * sizeof(BNU_CHUNK_T); /* field polynomial */
88 GFP_POOL(pGFEx) = (BNU_CHUNK_T*)(ptr); /* pool */
89 GFP_MAXPOOL(pGFEx) = GFPX_POOL_SIZE;
90 GFP_USEDPOOL(pGFEx) = 0;
91
92 cpGFpElementPadd(GFP_MODULUS(pGFEx), elemLen, 0);
93 }
94 }
95