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Add checks for return values to md functions

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2021-12-09 17:18:10 +00:00
parent 620cbb9bf5
commit d068876181
1 changed files with 45 additions and 8 deletions
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53
programs/aes/crypt_and_hash.c
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@ -281,10 +281,27 @@ int main( int argc, char *argv[] )
p = argv[2];
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, buffer, 8 );
mbedtls_md_update( &md_ctx, (unsigned char *) p, strlen( p ) );
mbedtls_md_finish( &md_ctx, digest );
if( mbedtls_md_starts( &md_ctx ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_starts() returned error\n" );
goto exit;
}
if( mbedtls_md_update( &md_ctx, buffer, 8 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_update() returned error\n" );
goto exit;
}
if( mbedtls_md_update( &md_ctx, ( unsigned char * ) p, strlen( p ) )
!= 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_update() returned error\n" );
goto exit;
}
if( mbedtls_md_finish( &md_ctx, digest ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_finish() returned error\n" );
goto exit;
}
memcpy( IV, digest, 16 );
@ -306,10 +323,30 @@ int main( int argc, char *argv[] )
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, digest, 32 );
mbedtls_md_update( &md_ctx, key, keylen );
mbedtls_md_finish( &md_ctx, digest );
if( mbedtls_md_starts( &md_ctx ) != 0 )
{
mbedtls_fprintf( stderr,
"mbedtls_md_starts() returned error\n" );
goto exit;
}
if( mbedtls_md_update( &md_ctx, digest, 32 ) != 0 )
{
mbedtls_fprintf( stderr,
"mbedtls_md_update() returned error\n" );
goto exit;
}
if( mbedtls_md_update( &md_ctx, key, keylen ) != 0 )
{
mbedtls_fprintf( stderr,
"mbedtls_md_update() returned error\n" );
goto exit;
}
if( mbedtls_md_finish( &md_ctx, digest ) != 0 )
{
mbedtls_fprintf( stderr,
"mbedtls_md_finish() returned error\n" );
goto exit;
}
}