1 /*******************************************************************************
2 * Copyright 2014-2018 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 // Security Hash Standard
46 // General Functionality
47 //
48 // Contents:
49 // cpReInitHash()
50 //
51 */
52
53 #include "owndefs.h"
54 #include "owncp.h"
55 #include "pcphash.h"
56 #include "pcptool.h"
57
58 /*F*
59 // Name: ippsHashInit
60 //
61 // Purpose: Init Hash state.
62 //
63 // Returns: Reason:
64 // ippStsNullPtrErr pState == NULL
65 // ippStsNotSupportedModeErr if algID is not match to supported hash alg
66 // ippStsNoErr no errors
67 //
68 // Parameters:
69 // pCtx pointer to the Hash state
70 // algID hash alg ID
71 //
72 *F*/
cpReInitHash(IppsHashState * pCtx,IppHashAlgId algID)73 int cpReInitHash(IppsHashState* pCtx, IppHashAlgId algID)
74 {
75 int hashIvSize = cpHashIvSize(algID);
76 const Ipp8u* iv = cpHashIV[algID];
77
78 HASH_LENLO(pCtx) = CONST_64(0);
79 HASH_LENHI(pCtx) = CONST_64(0);
80 HAHS_BUFFIDX(pCtx) = 0;
81 CopyBlock(iv, HASH_VALUE(pCtx), hashIvSize);
82
83 return hashIvSize;
84 }
85