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/*******************************************************************************
* Copyright 2003-2018 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.
// Internal ECC (prime) Resource List Function
//
//
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcpbnresource.h"
#include "pcpbn.h"
/*F*
// Name: cpBigNumListGetSize
//
// Purpose: Size of BigNum List Buffer
//
// Returns:
// Size of List Buffer
//
// Parameters:
// feBitSize size in bits
// nodes number of nodes
//
*F*/
int cpBigNumListGetSize(int feBitSize, int nodes)
{
/* size of buffer per single big number */
int bnSize;
ippsBigNumGetSize(BITS2WORD32_SIZE(feBitSize), &bnSize);
/* size of buffer for whole list */
return (ALIGN_VAL-1) + (sizeof(BigNumNode) + bnSize) * nodes;
}
/*F*
// Name: cpBigNumListInit
//
// Purpose: Init list
//
//
// Parameters:
// feBitSize size in bit
// nodes number of nodes
// pList pointer to list
//
// Note: buffer for BN list must have appropriate alignment
//
*F*/
void cpBigNumListInit(int feBitSize, int nodes, BigNumNode* pList)
{
int itemSize;
/* length of Big Num */
int bnLen = BITS2WORD32_SIZE(feBitSize);
/* size of buffer per single big number */
ippsBigNumGetSize(bnLen, &itemSize);
/* size of list item */
itemSize += sizeof(BigNumNode);
{
int n;
/* init all nodes */
BigNumNode* pNode = (BigNumNode*)( (Ipp8u*)pList + (nodes-1)*itemSize );
BigNumNode* pNext = NULL;
for(n=0; n<nodes; n++) {
Ipp8u* tbnPtr = (Ipp8u*)pNode + sizeof(BigNumNode);
pNode->pNext = pNext;
pNode->pBN = (IppsBigNumState*)( IPP_ALIGNED_PTR(tbnPtr, ALIGN_VAL) );
ippsBigNumInit(bnLen, pNode->pBN);
pNext = pNode;
pNode = (BigNumNode*)( (Ipp8u*)pNode - itemSize);
}
}
}
/*F*
// Name: cpBigNumListGet
//
// Purpose: Get BigNum reference
//
// Returns:
// BigNum reference
//
// Parameters:
// ppList pointer to pointer to List
//
*F*/
IppsBigNumState* cpBigNumListGet(BigNumNode** ppList)
{
if(*ppList) {
IppsBigNumState* ret = (*ppList)->pBN;
*ppList = (*ppList)->pNext;
return ret;
}
else
return NULL;
}
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