Home | History | Annotate | Download | only in ippcp 
      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*/
     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