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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpprnginitca.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpprnginitca.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpprnginitca.c b/ext/ipp/sources/ippcp/pcpprnginitca.c new file mode 100644 index 0000000..b38e3bb --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpprnginitca.c @@ -0,0 +1,108 @@ +/******************************************************************************* +* 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: +// ippsPRNGInit() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpbn.h" +#include "pcpprng.h" +#include "pcphash.h" +#include "pcptool.h" + +/*F* +// Name: ippsPRNGInit +// +// Purpose: Initializes PRNG context +// +// Returns: Reason: +// ippStsNullPtrErr NULL == pCtx +// +// ippStsLengthErr seedBits < 1 +// seedBits < MAX_XKEY_SIZE +// seedBits % 8 !=0 +// +// ippStsNoErr no error +// +// Parameters: +// seedBits seed bitsize +// pCtx pointer to the context to be initialized +*F*/ +IPPFUN(IppStatus, ippsPRNGInit, (int seedBits, IppsPRNGState* pCtx)) +{ + /* test PRNG context */ + IPP_BAD_PTR1_RET(pCtx); + pCtx = (IppsPRNGState*)( IPP_ALIGNED_PTR(pCtx, PRNG_ALIGNMENT) ); + + /* test sizes */ + IPP_BADARG_RET((1>seedBits) || (seedBits>MAX_XKEY_SIZE) ||(seedBits&7), ippStsLengthErr); + + { + int hashIvSize = cpHashIvSize(ippHashAlg_SHA1); + const Ipp8u* iv = cpHashIV[ippHashAlg_SHA1]; + + /* cleanup context */ + ZEXPAND_BNU((Ipp8u*)pCtx, 0, (cpSize)(sizeof(IppsPRNGState))); + + RAND_ID(pCtx) = idCtxPRNG; + RAND_SEEDBITS(pCtx) = seedBits; + + /* default Q parameter */ + ((Ipp32u*)RAND_Q(pCtx))[0] = 0xFFFFFFFF; + ((Ipp32u*)RAND_Q(pCtx))[1] = 0xFFFFFFFF; + ((Ipp32u*)RAND_Q(pCtx))[2] = 0xFFFFFFFF; + ((Ipp32u*)RAND_Q(pCtx))[3] = 0xFFFFFFFF; + ((Ipp32u*)RAND_Q(pCtx))[4] = 0xFFFFFFFF; + + /* default T parameter */ + CopyBlock(iv, RAND_T(pCtx), hashIvSize); + + return ippStsNoErr; + } +} |