50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/**
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* Internal bignum functions
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*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBEDTLS_BIGNUM_INTERNAL_H
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#define MBEDTLS_BIGNUM_INTERNAL_H
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#include "common.h"
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#if defined(MBEDTLS_BIGNUM_C)
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#include "mbedtls/bignum.h"
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#endif
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/** Perform a known-size multiply accumulate operation
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*
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* Add \p b * \p s to \p d.
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*
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* \param[in,out] d The pointer to the (little-endian) array
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* representing the bignum to accumulate onto.
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* \param d_len The number of limbs of \p d. This must be
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* at least \p s_len.
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* \param[in] s The pointer to the (little-endian) array
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* representing the bignum to multiply with.
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* This may be the same as \p d. Otherwise,
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* it must be disjoint from \p d.
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* \param s_len The number of limbs of \p s.
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* \param b A scalar to multiply with.
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*
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* \return c The carry at the end of the operation.
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*/
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mbedtls_mpi_uint mbedtls_mpi_core_mla( mbedtls_mpi_uint *d, size_t d_len ,
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const mbedtls_mpi_uint *s, size_t s_len,
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mbedtls_mpi_uint b );
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#endif /* MBEDTLS_BIGNUM_INTERNAL_H */
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