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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpmontset.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpmontset.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpmontset.c b/ext/ipp/sources/ippcp/pcpmontset.c new file mode 100644 index 0000000..61bf3b5 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpmontset.c @@ -0,0 +1,91 @@ +/******************************************************************************* +* 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. +*******************************************************************************/ + +/* +// Intel(R) Integrated Performance Primitives +// Cryptographic Primitives (ippcp) +// +// Contents: +// ippsMontSet() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpbn.h" +#include "pcpmontgomery.h" +#include "pcptool.h" + +/*F* +// Name: ippsMontSet +// +// Purpose: Setup modulus value +// +// Returns: Reason: +// ippStsNullPtrErr pCtx == NULL +// pModulus == NULL +// ippStsContextMatchErr !MNT_VALID_ID(pCtx) +// ippStsBadModulusErr (pModulus[0] & 1) == 0 +// ippStsOutOfRangeErr ((Ipp32u)MNT_ROOM(pCtx) < INTERNAL_BNU_LENGTH(size)) +// ippStsLengthErr size<1 +// ippStsNoErr no errors +// +// Parameters: +// pModulus pointer to the modulus buffer +// size length of the modulus (in Ipp32u chunks). +// pCtx pointer to the context +*F*/ + +IPPFUN(IppStatus, ippsMontSet,(const Ipp32u* pModulus, int size, IppsMontState* pCtx)) +{ + IPP_BAD_PTR2_RET(pModulus, pCtx); + pCtx = (IppsMontState*)(IPP_ALIGNED_PTR((pCtx), MONT_ALIGNMENT)); + IPP_BADARG_RET(!MNT_VALID_ID(pCtx), ippStsContextMatchErr); + + IPP_BADARG_RET(size<1, ippStsLengthErr); + + /* modulus is not an odd number */ + IPP_BADARG_RET((pModulus[0] & 1) == 0, ippStsBadModulusErr); + IPP_BADARG_RET(((Ipp32u)MNT_ROOM(pCtx) < INTERNAL_BNU_LENGTH(size)), ippStsOutOfRangeErr); + + { + return cpMontSet(pModulus, size, pCtx); + } +} |