56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/**
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* \file base_invasive.h
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*
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* \brief Base64 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_BASE64_INVASIVE_H
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#define MBEDTLS_BASE64_INVASIVE_H
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#include "common.h"
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#if defined(MBEDTLS_TEST_HOOKS)
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/* Return 0xff if low <= c <= high, 0 otherwise.
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*
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* Constant flow with respect to c.
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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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/* Given a value in the range 0..63, return the corresponding Base64 digit.
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*
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* Operates in constant time (no branches or memory access depending on val).
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*/
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unsigned char mbedtls_ct_base64_enc_char( unsigned char val );
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/* Given a Base64 digit, return its value.
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* If c is not a Base64 digit ('A'..'Z', 'a'..'z', '0'..'9', '+' or '/'),
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* return -1.
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*
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* Operates in constant time (no branches or memory access depending on c).
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*/
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signed char mbedtls_ct_base64_dec_value( unsigned char c );
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#endif /* MBEDTLS_TEST_HOOKS */
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#endif /* MBEDTLS_BASE64_INVASIVE_H */
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