mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-23 03:55:44 +01:00
415c7be0aa
Adds test cases to ensure that `mbedtls_mpi_exp_mod` will return an error with an exponent or modulus that is greater than `MBEDTLS_MPI_MAX_SIZE` in size. Adds test cases to ensure that Diffie-Hellman will fail to make a key pair (using `mbedtls_dhm_make_public`) when the prime modulus is greater than `MBEDTLS_MPI_MAX_SIZE` in size. Signed-off-by: Chris Jones <christopher.jones@arm.com>
269 lines
11 KiB
Plaintext
269 lines
11 KiB
Plaintext
/* BEGIN_HEADER */
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#include "mbedtls/dhm.h"
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_DHM_C:MBEDTLS_BIGNUM_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */
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void dhm_invalid_params( )
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{
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mbedtls_dhm_context ctx;
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unsigned char buf[42] = { 0 };
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unsigned char *buf_null = NULL;
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mbedtls_mpi X;
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size_t const buflen = sizeof( buf );
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size_t len;
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TEST_INVALID_PARAM( mbedtls_dhm_init( NULL ) );
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TEST_VALID_PARAM( mbedtls_dhm_free( NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_params( NULL,
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(unsigned char**) &buf,
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buf ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_params( &ctx, &buf_null, buf ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_params( &ctx, NULL, buf ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_params( &ctx,
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(unsigned char**) &buf,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_params( NULL, buflen,
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buf, &len,
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rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_params( &ctx, buflen,
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NULL, &len,
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rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_params( &ctx, buflen,
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buf, NULL,
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rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_params( &ctx, buflen,
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buf, &len,
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NULL,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_set_group( NULL, &X, &X ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_set_group( &ctx, NULL, &X ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_set_group( &ctx, &X, NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_public( NULL, buf, buflen ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_read_public( &ctx, NULL, buflen ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_public( NULL, buflen,
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buf, buflen,
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rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_public( &ctx, buflen,
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NULL, buflen,
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rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_make_public( &ctx, buflen,
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buf, buflen,
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NULL,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_calc_secret( NULL, buf, buflen,
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&len, rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_calc_secret( &ctx, NULL, buflen,
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&len, rnd_std_rand,
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NULL ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_calc_secret( &ctx, buf, buflen,
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NULL, rnd_std_rand,
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NULL ) );
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#if defined(MBEDTLS_ASN1_PARSE_C)
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_parse_dhm( NULL, buf, buflen ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_parse_dhm( &ctx, NULL, buflen ) );
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#if defined(MBEDTLS_FS_IO)
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_parse_dhmfile( NULL, "" ) );
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TEST_INVALID_PARAM_RET( MBEDTLS_ERR_DHM_BAD_INPUT_DATA,
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mbedtls_dhm_parse_dhmfile( &ctx, NULL ) );
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#endif /* MBEDTLS_FS_IO */
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#endif /* MBEDTLS_ASN1_PARSE_C */
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exit:
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return;
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void dhm_do_dhm( int radix_P, char *input_P,
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int radix_G, char *input_G, int result )
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{
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mbedtls_dhm_context ctx_srv;
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mbedtls_dhm_context ctx_cli;
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unsigned char ske[1000];
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unsigned char *p = ske;
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unsigned char pub_cli[1000];
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unsigned char sec_srv[1000];
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unsigned char sec_cli[1000];
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size_t ske_len = 0;
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size_t pub_cli_len = 0;
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size_t sec_srv_len;
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size_t sec_cli_len;
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int x_size, i;
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rnd_pseudo_info rnd_info;
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mbedtls_dhm_init( &ctx_srv );
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mbedtls_dhm_init( &ctx_cli );
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memset( ske, 0x00, 1000 );
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memset( pub_cli, 0x00, 1000 );
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memset( sec_srv, 0x00, 1000 );
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memset( sec_cli, 0x00, 1000 );
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memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
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/*
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* Set params
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*/
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TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.P, radix_P, input_P ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.G, radix_G, input_G ) == 0 );
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x_size = mbedtls_mpi_size( &ctx_srv.P );
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pub_cli_len = x_size;
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/*
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* First key exchange
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*/
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TEST_ASSERT( mbedtls_dhm_make_params( &ctx_srv, x_size, ske, &ske_len, &rnd_pseudo_rand, &rnd_info ) == result );
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if ( result != 0 )
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goto exit;
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ske[ske_len++] = 0;
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ske[ske_len++] = 0;
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TEST_ASSERT( mbedtls_dhm_read_params( &ctx_cli, &p, ske + ske_len ) == 0 );
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TEST_ASSERT( mbedtls_dhm_make_public( &ctx_cli, x_size, pub_cli, pub_cli_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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TEST_ASSERT( mbedtls_dhm_read_public( &ctx_srv, pub_cli, pub_cli_len ) == 0 );
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TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_cli, sec_cli, sizeof( sec_cli ), &sec_cli_len, NULL, NULL ) == 0 );
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TEST_ASSERT( sec_srv_len == sec_cli_len );
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TEST_ASSERT( sec_srv_len != 0 );
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TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
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/* Re-do calc_secret on server a few times to test update of blinding values */
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for( i = 0; i < 3; i++ )
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{
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sec_srv_len = 1000;
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TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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TEST_ASSERT( sec_srv_len == sec_cli_len );
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TEST_ASSERT( sec_srv_len != 0 );
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TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
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}
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/*
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* Second key exchange to test change of blinding values on server
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*/
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p = ske;
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TEST_ASSERT( mbedtls_dhm_make_params( &ctx_srv, x_size, ske, &ske_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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ske[ske_len++] = 0;
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ske[ske_len++] = 0;
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TEST_ASSERT( mbedtls_dhm_read_params( &ctx_cli, &p, ske + ske_len ) == 0 );
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TEST_ASSERT( mbedtls_dhm_make_public( &ctx_cli, x_size, pub_cli, pub_cli_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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TEST_ASSERT( mbedtls_dhm_read_public( &ctx_srv, pub_cli, pub_cli_len ) == 0 );
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TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
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TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_cli, sec_cli, sizeof( sec_cli ), &sec_cli_len, NULL, NULL ) == 0 );
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TEST_ASSERT( sec_srv_len == sec_cli_len );
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TEST_ASSERT( sec_srv_len != 0 );
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TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
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exit:
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mbedtls_dhm_free( &ctx_srv );
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mbedtls_dhm_free( &ctx_cli );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void dhm_make_public( int P_bytes, int radix_G, char *input_G, int result )
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{
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mbedtls_mpi P, G;
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mbedtls_dhm_context ctx;
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unsigned char output[MBEDTLS_MPI_MAX_SIZE];
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mbedtls_mpi_init( &P );
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mbedtls_mpi_init( &G );
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mbedtls_dhm_init( &ctx );
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TEST_ASSERT( mbedtls_mpi_lset( &P, 1 ) == 0 );
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TEST_ASSERT( mbedtls_mpi_shift_l( &P, ( P_bytes * 8 ) - 1 ) == 0 );
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TEST_ASSERT( mbedtls_mpi_set_bit( &P, 0, 1 ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &G, radix_G, input_G ) == 0 );
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TEST_ASSERT( mbedtls_dhm_set_group( &ctx, &P, &G ) == 0 );
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TEST_ASSERT( mbedtls_dhm_make_public( &ctx, (int) mbedtls_mpi_size( &P ),
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output, sizeof(output),
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&mbedtls_test_rnd_pseudo_rand,
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NULL ) == result );
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exit:
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mbedtls_mpi_free( &P );
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mbedtls_mpi_free( &G );
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mbedtls_dhm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
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void dhm_file( char * filename, char * p, char * g, int len )
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{
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mbedtls_dhm_context ctx;
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mbedtls_mpi P, G;
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mbedtls_dhm_init( &ctx );
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mbedtls_mpi_init( &P ); mbedtls_mpi_init( &G );
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TEST_ASSERT( mbedtls_mpi_read_string( &P, 16, p ) == 0 );
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TEST_ASSERT( mbedtls_mpi_read_string( &G, 16, g ) == 0 );
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TEST_ASSERT( mbedtls_dhm_parse_dhmfile( &ctx, filename ) == 0 );
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TEST_ASSERT( ctx.len == (size_t) len );
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TEST_ASSERT( mbedtls_mpi_cmp_mpi( &ctx.P, &P ) == 0 );
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TEST_ASSERT( mbedtls_mpi_cmp_mpi( &ctx.G, &G ) == 0 );
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exit:
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mbedtls_mpi_free( &P ); mbedtls_mpi_free( &G );
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mbedtls_dhm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
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void dhm_selftest( )
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{
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TEST_ASSERT( mbedtls_dhm_self_test( 1 ) == 0 );
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}
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/* END_CASE */
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