mirror of
https://github.com/yuzu-emu/mbedtls.git
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77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/**
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* Constant-time 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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#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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#include <stddef.h>
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int mbedtls_ssl_safer_memcmp( const void *a, const void *b, size_t n );
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int mbedtls_constant_time_memcmp( const void *v1, const void *v2, size_t len );
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unsigned char mbedtls_nist_kw_safer_memcmp( const void *a, const void *b, size_t n );
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int mbedtls_safer_memcmp( const void *a, const void *b, size_t n );
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unsigned mbedtls_cf_uint_mask( unsigned value );
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size_t mbedtls_cf_size_mask( size_t bit );
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size_t mbedtls_cf_size_mask_lt( size_t x, size_t y );
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size_t mbedtls_cf_size_mask_ge( size_t x, size_t y );
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size_t mbedtls_cf_size_bool_eq( size_t x, size_t y );
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unsigned mbedtls_cf_size_gt( size_t size, size_t max );
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#if defined(MBEDTLS_BIGNUM_C)
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unsigned mbedtls_cf_mpi_uint_lt( const mbedtls_mpi_uint x,
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const mbedtls_mpi_uint y );
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#endif /* MBEDTLS_BIGNUM_C */
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unsigned mbedtls_cf_uint_if( unsigned cond, unsigned if1, unsigned if0 );
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int mbedtls_cf_cond_select_sign( int a, int b, unsigned char second );
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#if defined(MBEDTLS_BIGNUM_C)
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void mbedtls_cf_mpi_uint_cond_assign( size_t n,
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mbedtls_mpi_uint *dest,
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const mbedtls_mpi_uint *src,
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unsigned char assign );
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#endif /* MBEDTLS_BIGNUM_C */
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void mbedtls_cf_mem_move_to_left( void *start,
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size_t total,
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size_t offset );
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void mbedtls_cf_memcpy_if_eq( unsigned char *dst,
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const unsigned char *src,
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size_t len,
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size_t c1, size_t c2 );
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