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e375cbd094
Keep applying the windows entropy patch (UWP support). Remove no longer needed padlock patch. Update thirdparty README to reflect changes, and new source inclusion criteria.
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/**
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* \file constant_time_invasive.h
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*
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* \brief Constant-time 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_CONSTANT_TIME_INVASIVE_H
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#define MBEDTLS_CONSTANT_TIME_INVASIVE_H
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#include "common.h"
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#if defined(MBEDTLS_TEST_HOOKS)
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/** Turn a value into a mask:
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* - if \p low <= \p c <= \p high,
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* return the all-bits 1 mask, aka (unsigned) -1
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* - otherwise, return the all-bits 0 mask, aka 0
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*
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* \param low The value to analyze.
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* \param high The value to analyze.
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* \param c The value to analyze.
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*
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* \return All-bits-one if \p low <= \p c <= \p high, otherwise zero.
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*/
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unsigned char mbedtls_ct_uchar_mask_of_range( unsigned char low,
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unsigned char high,
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unsigned char c );
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#endif /* MBEDTLS_TEST_HOOKS */
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#endif /* MBEDTLS_CONSTANT_TIME_INVASIVE_H */
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