mirror of
https://github.com/Mbed-TLS/mbedtls.git
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945b23c46f
We used to include platform.h only when MBEDTLS_PLATFORM_C was enabled, and to define ad hoc replacements for mbedtls_xxx functions on a case-by-case basis when MBEDTLS_PLATFORM_C was disabled. The only reason for this complication was to allow building individual source modules without copying platform.h. This is not something we support or recommend anymore, so get rid of the complication: include platform.h unconditionally. There should be no change in behavior since just including the header should not change the behavior of a program. This commit replaces most occurrences of conditional inclusion of platform.h, using the following code: ``` perl -i -0777 -pe 's!#if.*\n#include "mbedtls/platform.h"\n(#else.*\n(#define (mbedtls|MBEDTLS)_.*\n|#include <(stdarg|stddef|stdio|stdlib|string|time)\.h>\n)*)?#endif.*!#include "mbedtls/platform.h"!mg' $(git grep -l '#include "mbedtls/platform.h"') ``` Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/*
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* RSASSA-PSS/SHA-256 signature verification program
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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 "mbedtls/build_info.h"
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#include "mbedtls/platform.h"
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#if !defined(MBEDTLS_MD_C) || !defined(MBEDTLS_ENTROPY_C) || \
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!defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_SHA256_C) || \
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!defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
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!defined(MBEDTLS_CTR_DRBG_C)
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int main( void )
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{
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mbedtls_printf("MBEDTLS_MD_C and/or MBEDTLS_ENTROPY_C and/or "
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"MBEDTLS_RSA_C and/or MBEDTLS_SHA256_C and/or "
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"MBEDTLS_PK_PARSE_C and/or MBEDTLS_FS_IO and/or "
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"MBEDTLS_CTR_DRBG_C not defined.\n");
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mbedtls_exit( 0 );
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}
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#else
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#include "mbedtls/md.h"
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#include "mbedtls/pem.h"
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#include "mbedtls/pk.h"
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#include "mbedtls/md.h"
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#include <stdio.h>
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#include <string.h>
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int ret = 1;
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int exit_code = MBEDTLS_EXIT_FAILURE;
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size_t i;
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mbedtls_pk_context pk;
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unsigned char hash[32];
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unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
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char filename[512];
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mbedtls_pk_init( &pk );
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if( argc != 3 )
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{
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mbedtls_printf( "usage: rsa_verify_pss <key_file> <filename>\n" );
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#if defined(_WIN32)
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mbedtls_printf( "\n" );
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#endif
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goto exit;
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}
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mbedtls_printf( "\n . Reading public key from '%s'", argv[1] );
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fflush( stdout );
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if( ( ret = mbedtls_pk_parse_public_keyfile( &pk, argv[1] ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! Could not read key from '%s'\n", argv[1] );
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mbedtls_printf( " ! mbedtls_pk_parse_public_keyfile returned %d\n\n", ret );
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goto exit;
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}
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if( !mbedtls_pk_can_do( &pk, MBEDTLS_PK_RSA ) )
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{
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mbedtls_printf( " failed\n ! Key is not an RSA key\n" );
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goto exit;
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}
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if( ( ret = mbedtls_rsa_set_padding( mbedtls_pk_rsa( pk ),
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MBEDTLS_RSA_PKCS_V21,
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MBEDTLS_MD_SHA256 ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! Invalid padding\n" );
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goto exit;
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}
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/*
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* Extract the RSA signature from the file
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*/
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mbedtls_snprintf( filename, 512, "%s.sig", argv[2] );
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if( ( f = fopen( filename, "rb" ) ) == NULL )
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{
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mbedtls_printf( "\n ! Could not open %s\n\n", filename );
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goto exit;
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}
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i = fread( buf, 1, MBEDTLS_MPI_MAX_SIZE, f );
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fclose( f );
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/*
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* Compute the SHA-256 hash of the input file and
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* verify the signature
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*/
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mbedtls_printf( "\n . Verifying the RSA/SHA-256 signature" );
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fflush( stdout );
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if( ( ret = mbedtls_md_file(
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mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ),
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argv[2], hash ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! Could not open or read %s\n\n", argv[2] );
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goto exit;
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}
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if( ( ret = mbedtls_pk_verify( &pk, MBEDTLS_MD_SHA256, hash, 0,
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buf, i ) ) != 0 )
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{
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mbedtls_printf( " failed\n ! mbedtls_pk_verify returned %d\n\n", ret );
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goto exit;
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}
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mbedtls_printf( "\n . OK (the signature is valid)\n\n" );
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exit_code = MBEDTLS_EXIT_SUCCESS;
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exit:
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mbedtls_pk_free( &pk );
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mbedtls_exit( exit_code );
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}
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#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_SHA256_C &&
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MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO */
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