1 /*******************************************************************************
2 * Copyright 2013-2018 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 //
43 // Purpose:
44 // Cryptography Primitive.
45 // RSA Functions
46 //
47 */
48
49 #include "owncp.h"
50 #include "pcpbn.h"
51 #include "pcpngrsa.h"
52 #include "pcpngrsamethod.h"
53
getDefaultMethod_RSA_private(int modulusBitSize)54 static gsMethod_RSA* getDefaultMethod_RSA_private(int modulusBitSize)
55 {
56 gsMethod_RSA* m;
57
58 #if(_IPP32E>=_IPP32E_K0)
59 m = IsFeatureEnabled(ippCPUID_AVX512IFMA) ? gsMethod_RSA_avx512_private() : gsMethod_RSA_avx2_private();
60
61 #elif(_IPP32E>=_IPP32E_L9)
62 m = IsFeatureEnabled(ippCPUID_ADCOX) ? gsMethod_RSA_gpr_private() : gsMethod_RSA_avx2_private();
63
64 #elif(_IPP>=_IPP_W7)
65 m = gsMethod_RSA_sse2_private();
66
67 #else
68 m = gsMethod_RSA_gpr_private();
69 #endif
70
71 if (!(m->loModulusBisize <= modulusBitSize && modulusBitSize <= m->hiModulusBisize))
72 m = gsMethod_RSA_gpr_private();
73 return m;
74 }