1 files changed, 89 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpprngen_range.c b/ext/ipp/sources/ippcp/pcpprngen_range.c
new file mode 100644
index 0000000..dfbed46
--- /dev/null
+++ b/ext/ipp/sources/ippcp/pcpprngen_range.c
@@ -0,0 +1,89 @@
+/*******************************************************************************
+* Copyright 2004-2018 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:
+//     Cryptography Primitive.
+//     PRNG Functions
+// 
+//  Contents:
+//        cpPRNGenRange()
+//
+*/
+
+#include "owndefs.h"
+#include "owncp.h"
+#include "pcpbn.h"
+#include "pcphash.h"
+#include "pcpprng.h"
+#include "pcptool.h"
+
+/* generates random string of specified bitSize length
+   within specified ragnge lo < r < Hi
+   returns:
+      0 random bit string not generated
+      1 random bit string generated
+     -1 detected internal error (ippStsNoErr != rndFunc())
+*/
+int cpPRNGenRange(BNU_CHUNK_T* pRand,
+            const BNU_CHUNK_T* pLo, cpSize loLen,
+            const BNU_CHUNK_T* pHi, cpSize hiLen,
+                  IppBitSupplier rndFunc, void* pRndParam)
+{
+   int bitSize = BITSIZE_BNU(pHi,hiLen);
+   BNU_CHUNK_T topMask = MASK_BNU_CHUNK(bitSize);
+
+   #define MAX_COUNT (1000)
+   int n;
+   for(n=0; n<MAX_COUNT; n++) {
+      cpSize randLen;
+      IppStatus sts = rndFunc((Ipp32u*)pRand, bitSize, pRndParam);
+      if(ippStsNoErr!=sts) return -1;
+
+      pRand[hiLen-1] &= topMask;
+      randLen = cpFix_BNU(pRand, hiLen);
+      if((0 < cpCmp_BNU(pRand, randLen, pLo, loLen)) && (0 < cpCmp_BNU(pHi, hiLen, pRand, randLen)))
+         return 1;
+   }
+   #undef MAX_COUNT
+
+   return 0; /* no random matched to (Lo,Hi) */
+}