Mark Radbourne / mbedtls

mbed TLS Build

Dependents:   Encrypt_Decrypt1 mbed_blink_tls encrypt encrypt

tests/suites/test_suite_dhm.function@0:cdf462088d13, 2017-01-05 (annotated)

Committer:
markrad
Date:
Thu Jan 05 00:18:44 2017 +0000
Revision:
0:cdf462088d13
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 0:cdf462088d13 1 /* BEGIN_HEADER */
markrad 0:cdf462088d13 2 #include "mbedtls/dhm.h"
markrad 0:cdf462088d13 3 /* END_HEADER */
markrad 0:cdf462088d13 4
markrad 0:cdf462088d13 5 /* BEGIN_DEPENDENCIES
markrad 0:cdf462088d13 6 * depends_on:MBEDTLS_DHM_C:MBEDTLS_BIGNUM_C
markrad 0:cdf462088d13 7 * END_DEPENDENCIES
markrad 0:cdf462088d13 8 */
markrad 0:cdf462088d13 9
markrad 0:cdf462088d13 10 /* BEGIN_CASE */
markrad 0:cdf462088d13 11 void dhm_do_dhm( int radix_P, char *input_P,
markrad 0:cdf462088d13 12 int radix_G, char *input_G )
markrad 0:cdf462088d13 13 {
markrad 0:cdf462088d13 14 mbedtls_dhm_context ctx_srv;
markrad 0:cdf462088d13 15 mbedtls_dhm_context ctx_cli;
markrad 0:cdf462088d13 16 unsigned char ske[1000];
markrad 0:cdf462088d13 17 unsigned char *p = ske;
markrad 0:cdf462088d13 18 unsigned char pub_cli[1000];
markrad 0:cdf462088d13 19 unsigned char sec_srv[1000];
markrad 0:cdf462088d13 20 unsigned char sec_cli[1000];
markrad 0:cdf462088d13 21 size_t ske_len = 0;
markrad 0:cdf462088d13 22 size_t pub_cli_len = 0;
markrad 0:cdf462088d13 23 size_t sec_srv_len;
markrad 0:cdf462088d13 24 size_t sec_cli_len;
markrad 0:cdf462088d13 25 int x_size, i;
markrad 0:cdf462088d13 26 rnd_pseudo_info rnd_info;
markrad 0:cdf462088d13 27
markrad 0:cdf462088d13 28 mbedtls_dhm_init( &ctx_srv );
markrad 0:cdf462088d13 29 mbedtls_dhm_init( &ctx_cli );
markrad 0:cdf462088d13 30 memset( ske, 0x00, 1000 );
markrad 0:cdf462088d13 31 memset( pub_cli, 0x00, 1000 );
markrad 0:cdf462088d13 32 memset( sec_srv, 0x00, 1000 );
markrad 0:cdf462088d13 33 memset( sec_cli, 0x00, 1000 );
markrad 0:cdf462088d13 34 memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
markrad 0:cdf462088d13 35
markrad 0:cdf462088d13 36 /*
markrad 0:cdf462088d13 37 * Set params
markrad 0:cdf462088d13 38 */
markrad 0:cdf462088d13 39 TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.P, radix_P, input_P ) == 0 );
markrad 0:cdf462088d13 40 TEST_ASSERT( mbedtls_mpi_read_string( &ctx_srv.G, radix_G, input_G ) == 0 );
markrad 0:cdf462088d13 41 x_size = mbedtls_mpi_size( &ctx_srv.P );
markrad 0:cdf462088d13 42 pub_cli_len = x_size;
markrad 0:cdf462088d13 43
markrad 0:cdf462088d13 44 /*
markrad 0:cdf462088d13 45 * First key exchange
markrad 0:cdf462088d13 46 */
markrad 0:cdf462088d13 47 TEST_ASSERT( mbedtls_dhm_make_params( &ctx_srv, x_size, ske, &ske_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 48 ske[ske_len++] = 0;
markrad 0:cdf462088d13 49 ske[ske_len++] = 0;
markrad 0:cdf462088d13 50 TEST_ASSERT( mbedtls_dhm_read_params( &ctx_cli, &p, ske + ske_len ) == 0 );
markrad 0:cdf462088d13 51
markrad 0:cdf462088d13 52 TEST_ASSERT( mbedtls_dhm_make_public( &ctx_cli, x_size, pub_cli, pub_cli_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 53 TEST_ASSERT( mbedtls_dhm_read_public( &ctx_srv, pub_cli, pub_cli_len ) == 0 );
markrad 0:cdf462088d13 54
markrad 0:cdf462088d13 55 TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 56 TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_cli, sec_cli, sizeof( sec_cli ), &sec_cli_len, NULL, NULL ) == 0 );
markrad 0:cdf462088d13 57
markrad 0:cdf462088d13 58 TEST_ASSERT( sec_srv_len == sec_cli_len );
markrad 0:cdf462088d13 59 TEST_ASSERT( sec_srv_len != 0 );
markrad 0:cdf462088d13 60 TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
markrad 0:cdf462088d13 61
markrad 0:cdf462088d13 62 /* Re-do calc_secret on server a few times to test update of blinding values */
markrad 0:cdf462088d13 63 for( i = 0; i < 3; i++ )
markrad 0:cdf462088d13 64 {
markrad 0:cdf462088d13 65 sec_srv_len = 1000;
markrad 0:cdf462088d13 66 TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 67
markrad 0:cdf462088d13 68 TEST_ASSERT( sec_srv_len == sec_cli_len );
markrad 0:cdf462088d13 69 TEST_ASSERT( sec_srv_len != 0 );
markrad 0:cdf462088d13 70 TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
markrad 0:cdf462088d13 71 }
markrad 0:cdf462088d13 72
markrad 0:cdf462088d13 73 /*
markrad 0:cdf462088d13 74 * Second key exchange to test change of blinding values on server
markrad 0:cdf462088d13 75 */
markrad 0:cdf462088d13 76 p = ske;
markrad 0:cdf462088d13 77
markrad 0:cdf462088d13 78 TEST_ASSERT( mbedtls_dhm_make_params( &ctx_srv, x_size, ske, &ske_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 79 ske[ske_len++] = 0;
markrad 0:cdf462088d13 80 ske[ske_len++] = 0;
markrad 0:cdf462088d13 81 TEST_ASSERT( mbedtls_dhm_read_params( &ctx_cli, &p, ske + ske_len ) == 0 );
markrad 0:cdf462088d13 82
markrad 0:cdf462088d13 83 TEST_ASSERT( mbedtls_dhm_make_public( &ctx_cli, x_size, pub_cli, pub_cli_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 84 TEST_ASSERT( mbedtls_dhm_read_public( &ctx_srv, pub_cli, pub_cli_len ) == 0 );
markrad 0:cdf462088d13 85
markrad 0:cdf462088d13 86 TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_srv, sec_srv, sizeof( sec_srv ), &sec_srv_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 0:cdf462088d13 87 TEST_ASSERT( mbedtls_dhm_calc_secret( &ctx_cli, sec_cli, sizeof( sec_cli ), &sec_cli_len, NULL, NULL ) == 0 );
markrad 0:cdf462088d13 88
markrad 0:cdf462088d13 89 TEST_ASSERT( sec_srv_len == sec_cli_len );
markrad 0:cdf462088d13 90 TEST_ASSERT( sec_srv_len != 0 );
markrad 0:cdf462088d13 91 TEST_ASSERT( memcmp( sec_srv, sec_cli, sec_srv_len ) == 0 );
markrad 0:cdf462088d13 92
markrad 0:cdf462088d13 93 exit:
markrad 0:cdf462088d13 94 mbedtls_dhm_free( &ctx_srv );
markrad 0:cdf462088d13 95 mbedtls_dhm_free( &ctx_cli );
markrad 0:cdf462088d13 96 }
markrad 0:cdf462088d13 97 /* END_CASE */
markrad 0:cdf462088d13 98
markrad 0:cdf462088d13 99 /* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
markrad 0:cdf462088d13 100 void dhm_file( char *filename, char *p, char *g, int len )
markrad 0:cdf462088d13 101 {
markrad 0:cdf462088d13 102 mbedtls_dhm_context ctx;
markrad 0:cdf462088d13 103 mbedtls_mpi P, G;
markrad 0:cdf462088d13 104
markrad 0:cdf462088d13 105 mbedtls_dhm_init( &ctx );
markrad 0:cdf462088d13 106 mbedtls_mpi_init( &P ); mbedtls_mpi_init( &G );
markrad 0:cdf462088d13 107
markrad 0:cdf462088d13 108 TEST_ASSERT( mbedtls_mpi_read_string( &P, 16, p ) == 0 );
markrad 0:cdf462088d13 109 TEST_ASSERT( mbedtls_mpi_read_string( &G, 16, g ) == 0 );
markrad 0:cdf462088d13 110
markrad 0:cdf462088d13 111 TEST_ASSERT( mbedtls_dhm_parse_dhmfile( &ctx, filename ) == 0 );
markrad 0:cdf462088d13 112
markrad 0:cdf462088d13 113 TEST_ASSERT( ctx.len == (size_t) len );
markrad 0:cdf462088d13 114 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &ctx.P, &P ) == 0 );
markrad 0:cdf462088d13 115 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &ctx.G, &G ) == 0 );
markrad 0:cdf462088d13 116
markrad 0:cdf462088d13 117 exit:
markrad 0:cdf462088d13 118 mbedtls_mpi_free( &P ); mbedtls_mpi_free( &G );
markrad 0:cdf462088d13 119 mbedtls_dhm_free( &ctx );
markrad 0:cdf462088d13 120 }
markrad 0:cdf462088d13 121 /* END_CASE */
markrad 0:cdf462088d13 122
markrad 0:cdf462088d13 123 /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
markrad 0:cdf462088d13 124 void dhm_selftest()
markrad 0:cdf462088d13 125 {
markrad 0:cdf462088d13 126 TEST_ASSERT( mbedtls_dhm_self_test( 1 ) == 0 );
markrad 0:cdf462088d13 127 }
markrad 0:cdf462088d13 128 /* END_CASE */