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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.
+*******************************************************************************/
+
+/*
+// Purpose:
+// Intel(R) Integrated Performance Primitives. Cryptography Primitives.
+// Unsigned internal BNU32 misc functionality
+//
+// Contents:
+// cpToOctStr_BNU32()
+//
+*/
+
+#include "owncp.h"
+#include "pcpbnuimpl.h"
+#include "pcpbnumisc.h"
+#include "pcpbnu32misc.h"
+
+/*F*
+// Name: cpFromOctStr_BNU32
+//
+// Purpose: Convert Oct String into BNU representation.
+//
+// Returns:
+// size of BNU in BNU_CHUNK_T chunks
+//
+// Parameters:
+// pOctStr pointer to the source octet string
+// strLen octet string length
+// pBNU pointer to the target BN
+//
+*F*/
+
+cpSize cpFromOctStr_BNU32(Ipp32u* pBNU, const Ipp8u* pOctStr, cpSize strLen)
+{
+ cpSize bnuSize=0;
+ *pBNU = 0;
+
+ /* start from the end of string */
+ for(; strLen>=4; bnuSize++,strLen-=4) {
+ /* pack 4 bytes into single Ipp32u value*/
+ *pBNU++ = ( pOctStr[strLen-4]<<(8*3) )
+ +( pOctStr[strLen-3]<<(8*2) )
+ +( pOctStr[strLen-2]<<(8*1) )
+ + pOctStr[strLen-1];
+ }
+
+ /* convert the beginning of the string */
+ if(strLen) {
+ Ipp32u x;
+ for(x=0; strLen>0; strLen--) {
+ Ipp32u d = *pOctStr++;
+ x = x*256 + d;
+ }
+ *pBNU++ = x;
+ bnuSize++;
+ }
+
+ return bnuSize? bnuSize : 1;
+}