52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/**
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* \file ecp_invasive.h
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*
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* \brief ECP module: interfaces for invasive testing only.
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*
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* The interfaces in this file are intended for testing purposes only.
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* They SHOULD NOT be made available in library integrations except when
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* building the library for testing.
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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_INVASIVE_H
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#define MBEDTLS_ECP_INVASIVE_H
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#include "common.h"
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#include "mbedtls/ecp.h"
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#if defined(MBEDTLS_TEST_HOOKS) && defined(MBEDTLS_ECP_C)
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#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
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defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
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defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
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/* Preconditions:
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* - bits is a multiple of 64 or is 224
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* - c is -1 or -2
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* - 0 <= N < 2^bits
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* - N has room for bits plus one limb
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*
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* Behavior:
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* Set N to c * 2^bits + old_value_of_N.
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*/
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void mbedtls_ecp_fix_negative(mbedtls_mpi *N, signed char c, size_t bits);
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#endif
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#endif /* MBEDTLS_TEST_HOOKS && MBEDTLS_ECP_C */
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#endif /* MBEDTLS_ECP_INVASIVE_H */
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