aef9cc4f96
This paves the way for the helper to be used from the ECP module Signed-off-by: Hanno Becker <hanno.becker@arm.com>
50 lines
1.7 KiB
C
50 lines
1.7 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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/** Helper for mbedtls_mpi multiplication.
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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 bignum to add to.
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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 s_len The number of limbs of \p s.
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* \param[in] s A bignum to multiply, of size \p i.
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* It may overlap with \p d, but only if
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* \p d <= \p s.
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* Its leading limb must not be \c 0.
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* \param b A scalar to multiply.
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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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