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diff --git a/ext/ipp/sources/ippcp/pcpmontform.c b/ext/ipp/sources/ippcp/pcpmontform.c
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+++ b/ext/ipp/sources/ippcp/pcpmontform.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:
+//        ippsMontForm()
+//
+*/
+
+#include "owndefs.h"
+#include "owncp.h"
+#include "pcpbn.h"
+#include "pcpmontgomery.h"
+#include "pcptool.h"
+
+/*F*
+// Name: ippsMontForm
+//
+// Purpose: Converts input into Montgomery domain.
+//
+// Returns:                   Reason:
+//      ippStsNullPtrErr         pCtx==NULL
+//                               pA==NULL
+//                               pR==NULL
+//      ippStsContextMatchErr    !MNT_VALID_ID(pCtx)
+//                               !BN_VALID_ID(pA)
+//                               !BN_VALID_ID(pR)
+//      ippStsBadArgErr          A < 0.
+//      ippStsScaleRangeErr      A >= Modulus.
+//      ippStsOutOfRangeErr      R can't hold result
+//      ippStsNoErr              no errors
+//
+// Parameters:
+//    pA    pointer to the input [0, modulus-1]
+//    pCtx  Montgomery context
+//    pR    pointer to the output (A*R mod modulus)
+*F*/
+IPPFUN(IppStatus, ippsMontForm,(const IppsBigNumState* pA, IppsMontState* pCtx, IppsBigNumState* pR))
+{
+   IPP_BAD_PTR3_RET(pCtx, pA, pR);
+
+   pCtx = (IppsMontState*)(IPP_ALIGNED_PTR((pCtx), MONT_ALIGNMENT));
+   pA = (IppsBigNumState*)( IPP_ALIGNED_PTR(pA, BN_ALIGNMENT) );
+   pR = (IppsBigNumState*)( IPP_ALIGNED_PTR(pR, BN_ALIGNMENT) );
+
+   IPP_BADARG_RET(!MNT_VALID_ID(pCtx), ippStsContextMatchErr);
+   IPP_BADARG_RET(!BN_VALID_ID(pA), ippStsContextMatchErr);
+   IPP_BADARG_RET(!BN_VALID_ID(pR), ippStsContextMatchErr);
+
+   IPP_BADARG_RET(BN_SIGN(pA) != ippBigNumPOS, ippStsBadArgErr);
+   IPP_BADARG_RET(cpCmp_BNU(BN_NUMBER(pA), BN_SIZE(pA), MOD_MODULUS( MNT_ENGINE(pCtx) ), MOD_LEN( MNT_ENGINE(pCtx) )) >= 0, ippStsScaleRangeErr);
+   IPP_BADARG_RET(BN_ROOM(pR) < MOD_LEN( MNT_ENGINE(pCtx) ), ippStsOutOfRangeErr);
+
+   {
+      const int usedPoolLen = 1;
+      cpSize nsM = MOD_LEN( MNT_ENGINE(pCtx) );
+      BNU_CHUNK_T* pDataA  = gsModPoolAlloc(MNT_ENGINE(pCtx), usedPoolLen);
+      //tbcd: temporary excluded: assert(NULL!=pDataA);
+
+      ZEXPAND_COPY_BNU(pDataA, nsM, BN_NUMBER(pA), BN_SIZE(pA));
+
+      MOD_METHOD( MNT_ENGINE(pCtx) )->encode(BN_NUMBER(pR), pDataA, MNT_ENGINE(pCtx));
+
+      FIX_BNU(BN_NUMBER(pR), nsM);
+      BN_SIZE(pR) = nsM;
+      BN_SIGN(pR) = ippBigNumPOS;
+
+      gsModPoolFree(MNT_ENGINE(pCtx), usedPoolLen);
+   }
+
+   return ippStsNoErr;
+}