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diff --git a/ext/ipp/sources/ippcp/pcpmont_set.c b/ext/ipp/sources/ippcp/pcpmont_set.c
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+/*******************************************************************************
+* Copyright 2002-2018 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.
+*******************************************************************************/
+
+/* 
+//               Intel(R) Integrated Performance Primitives
+//                   Cryptographic Primitives (ippcp)
+// 
+//  Contents:
+//        cpMontSet()
+//
+*/
+
+#include "owndefs.h"
+#include "owncp.h"
+#include "pcpbn.h"
+#include "pcpmontgomery.h"
+#include "pcptool.h"
+
+
+/* Auxilirary function */
+__INLINE int cpGetBitSize(Ipp32u offset, Ipp32u val)
+{
+    int bitSize = 32;
+    if (val == 0) return 0;
+    while ((val & (1 << bitSize)) == 0) bitSize--;
+    return offset + bitSize;
+}
+
+/*F*
+// Name: cpMontSet
+//
+// Purpose: Setup modulus value
+//
+// Returns:                   Reason:
+//    ippStsBadModulusErr        (pModulus[0] & 1) == 0
+//    ippStsOutOfRangeErr        ((Ipp32u)MNT_ROOM(pMont) < INTERNAL_BNU_LENGTH(len32))
+//    ippStsLengthErr            len32<1
+//    ippStsNoErr                no errors
+//
+// Parameters:
+//    pModulus    pointer to the modulus buffer
+//    len32       length of the  modulus (in Ipp32u chunks).
+//    pMont       pointer to the context
+*F*/
+
+IppStatus cpMontSet(const Ipp32u* pModulus, cpSize len32, IppsMontState* pMont)
+{
+   IPP_BADARG_RET(len32<1, ippStsLengthErr);
+
+   /* modulus is not an odd number */
+   IPP_BADARG_RET((pModulus[0] & 1) == 0, ippStsBadModulusErr);
+   IPP_BADARG_RET(MNT_ROOM(pMont)<(int)(INTERNAL_BNU_LENGTH(len32)), ippStsOutOfRangeErr);
+
+   {
+      const int poolLen  = MOD_MAXPOOL(MNT_ENGINE(pMont));
+      int modulusBitSize = cpGetBitSize((len32 - 1) << 5, pModulus[len32-1]);
+
+      gsModEngineInit(MNT_ENGINE(pMont), pModulus, modulusBitSize, poolLen, gsModArithMont());
+
+      return ippStsNoErr;
+   }
+}