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47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/**
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* \file ecp_internal.h
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*
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* \brief Function declarations for internal functions of elliptic curve
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* point arithmetic.
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*/
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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_ECP_INTERNAL_H
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#define MBEDTLS_ECP_INTERNAL_H
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#include "common.h"
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#include "mbedtls/bignum.h"
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#include "bignum_mod.h"
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/** Convert an MPI to its canonical representative.
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*
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* \note Currently handles the case when `N->int_rep` is
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* MBEDTLS_MPI_MOD_REP_MONTGOMERY.
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*
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* \param[in,out] X The address of the MPI to be converted. Must have the
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* same number of limbs as \p N.
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* \param[in] N The address of the modulus.
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*
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* \return \c 0 if successful.
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* \return #MBEDTLS_ERR_MPI_BAD_INPUT_DATA if \p N is invalid.
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*/
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int mbedtls_ecp_quasi_reduction(mbedtls_mpi_uint *X,
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const mbedtls_mpi_mod_modulus *N);
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#endif /* MBEDTLS_ECP_INTERNAL_H */
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