diff options
Diffstat (limited to 'ext/ipp/sources/ippcp/pcpprngen_pattern.c')
-rw-r--r-- | ext/ipp/sources/ippcp/pcpprngen_pattern.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpprngen_pattern.c b/ext/ipp/sources/ippcp/pcpprngen_pattern.c new file mode 100644 index 0000000..f2cd0f3 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpprngen_pattern.c @@ -0,0 +1,78 @@ +/******************************************************************************* +* 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: +// cpPRNGenPattern() +// +*/ + +#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 + returns: + 1 random bit string generated + -1 detected internal error (ippStsNoErr != rndFunc()) +*/ +int cpPRNGenPattern(BNU_CHUNK_T* pRand, int bitSize, + BNU_CHUNK_T botPattern, BNU_CHUNK_T topPattern, + IppBitSupplier rndFunc, void* pRndParam) +{ + BNU_CHUNK_T topMask = MASK_BNU_CHUNK(bitSize); + cpSize randLen = BITS_BNU_CHUNK(bitSize); + + IppStatus sts = rndFunc((Ipp32u*)pRand, bitSize, pRndParam); + if(ippStsNoErr!=sts) return -1; + + pRand[randLen-1] &= topMask; + pRand[0] |= botPattern; + pRand[randLen-1] |= topPattern; + return 1; +} |