Mark Radbourne / Mbed 2 deprecated iothub_client_sample_amqp

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   EthernetInterface NTPClient iothub_amqp_transport iothub_client mbed-rtos mbed

Fork of iothub_client_sample_amqp by Azure IoT

mbedtls/tests/suites/test_suite_ecdsa.function@58:f50b97b08851, 2017-01-05 (annotated)

Committer:
markrad
Date:
Thu Jan 05 00:20:03 2017 +0000
Revision:
58:f50b97b08851
Sample using MBED TLS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 58:f50b97b08851 1 /* BEGIN_HEADER */
markrad 58:f50b97b08851 2 #include "mbedtls/ecdsa.h"
markrad 58:f50b97b08851 3 /* END_HEADER */
markrad 58:f50b97b08851 4
markrad 58:f50b97b08851 5 /* BEGIN_DEPENDENCIES
markrad 58:f50b97b08851 6 * depends_on:MBEDTLS_ECDSA_C
markrad 58:f50b97b08851 7 * END_DEPENDENCIES
markrad 58:f50b97b08851 8 */
markrad 58:f50b97b08851 9
markrad 58:f50b97b08851 10 /* BEGIN_CASE */
markrad 58:f50b97b08851 11 void ecdsa_prim_random( int id )
markrad 58:f50b97b08851 12 {
markrad 58:f50b97b08851 13 mbedtls_ecp_group grp;
markrad 58:f50b97b08851 14 mbedtls_ecp_point Q;
markrad 58:f50b97b08851 15 mbedtls_mpi d, r, s;
markrad 58:f50b97b08851 16 rnd_pseudo_info rnd_info;
markrad 58:f50b97b08851 17 unsigned char buf[66];
markrad 58:f50b97b08851 18
markrad 58:f50b97b08851 19 mbedtls_ecp_group_init( &grp );
markrad 58:f50b97b08851 20 mbedtls_ecp_point_init( &Q );
markrad 58:f50b97b08851 21 mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s );
markrad 58:f50b97b08851 22 memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
markrad 58:f50b97b08851 23 memset( buf, 0, sizeof( buf ) );
markrad 58:f50b97b08851 24
markrad 58:f50b97b08851 25 /* prepare material for signature */
markrad 58:f50b97b08851 26 TEST_ASSERT( rnd_pseudo_rand( &rnd_info, buf, sizeof( buf ) ) == 0 );
markrad 58:f50b97b08851 27 TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
markrad 58:f50b97b08851 28 TEST_ASSERT( mbedtls_ecp_gen_keypair( &grp, &d, &Q, &rnd_pseudo_rand, &rnd_info )
markrad 58:f50b97b08851 29 == 0 );
markrad 58:f50b97b08851 30
markrad 58:f50b97b08851 31 TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, buf, sizeof( buf ),
markrad 58:f50b97b08851 32 &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 58:f50b97b08851 33 TEST_ASSERT( mbedtls_ecdsa_verify( &grp, buf, sizeof( buf ), &Q, &r, &s ) == 0 );
markrad 58:f50b97b08851 34
markrad 58:f50b97b08851 35 exit:
markrad 58:f50b97b08851 36 mbedtls_ecp_group_free( &grp );
markrad 58:f50b97b08851 37 mbedtls_ecp_point_free( &Q );
markrad 58:f50b97b08851 38 mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s );
markrad 58:f50b97b08851 39 }
markrad 58:f50b97b08851 40 /* END_CASE */
markrad 58:f50b97b08851 41
markrad 58:f50b97b08851 42 /* BEGIN_CASE */
markrad 58:f50b97b08851 43 void ecdsa_prim_test_vectors( int id, char *d_str, char *xQ_str, char *yQ_str,
markrad 58:f50b97b08851 44 char *k_str, char *hash_str, char *r_str,
markrad 58:f50b97b08851 45 char *s_str )
markrad 58:f50b97b08851 46 {
markrad 58:f50b97b08851 47 mbedtls_ecp_group grp;
markrad 58:f50b97b08851 48 mbedtls_ecp_point Q;
markrad 58:f50b97b08851 49 mbedtls_mpi d, r, s, r_check, s_check;
markrad 58:f50b97b08851 50 unsigned char hash[66], rnd_buf[66];
markrad 58:f50b97b08851 51 size_t hlen;
markrad 58:f50b97b08851 52 rnd_buf_info rnd_info;
markrad 58:f50b97b08851 53
markrad 58:f50b97b08851 54 mbedtls_ecp_group_init( &grp );
markrad 58:f50b97b08851 55 mbedtls_ecp_point_init( &Q );
markrad 58:f50b97b08851 56 mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s );
markrad 58:f50b97b08851 57 mbedtls_mpi_init( &r_check ); mbedtls_mpi_init( &s_check );
markrad 58:f50b97b08851 58 memset( hash, 0, sizeof( hash ) );
markrad 58:f50b97b08851 59 memset( rnd_buf, 0, sizeof( rnd_buf ) );
markrad 58:f50b97b08851 60
markrad 58:f50b97b08851 61 TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
markrad 58:f50b97b08851 62 TEST_ASSERT( mbedtls_ecp_point_read_string( &Q, 16, xQ_str, yQ_str ) == 0 );
markrad 58:f50b97b08851 63 TEST_ASSERT( mbedtls_mpi_read_string( &d, 16, d_str ) == 0 );
markrad 58:f50b97b08851 64 TEST_ASSERT( mbedtls_mpi_read_string( &r_check, 16, r_str ) == 0 );
markrad 58:f50b97b08851 65 TEST_ASSERT( mbedtls_mpi_read_string( &s_check, 16, s_str ) == 0 );
markrad 58:f50b97b08851 66 hlen = unhexify(hash, hash_str);
markrad 58:f50b97b08851 67 rnd_info.buf = rnd_buf;
markrad 58:f50b97b08851 68 rnd_info.length = unhexify( rnd_buf, k_str );
markrad 58:f50b97b08851 69
markrad 58:f50b97b08851 70 /* Fix rnd_buf by shifting it left if necessary */
markrad 58:f50b97b08851 71 if( grp.nbits % 8 != 0 )
markrad 58:f50b97b08851 72 {
markrad 58:f50b97b08851 73 unsigned char shift = 8 - ( grp.nbits % 8 );
markrad 58:f50b97b08851 74 size_t i;
markrad 58:f50b97b08851 75
markrad 58:f50b97b08851 76 for( i = 0; i < rnd_info.length - 1; i++ )
markrad 58:f50b97b08851 77 rnd_buf[i] = rnd_buf[i] << shift | rnd_buf[i+1] >> ( 8 - shift );
markrad 58:f50b97b08851 78
markrad 58:f50b97b08851 79 rnd_buf[rnd_info.length-1] <<= shift;
markrad 58:f50b97b08851 80 }
markrad 58:f50b97b08851 81
markrad 58:f50b97b08851 82 TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, hash, hlen,
markrad 58:f50b97b08851 83 rnd_buffer_rand, &rnd_info ) == 0 );
markrad 58:f50b97b08851 84
markrad 58:f50b97b08851 85 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &r, &r_check ) == 0 );
markrad 58:f50b97b08851 86 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &s, &s_check ) == 0 );
markrad 58:f50b97b08851 87
markrad 58:f50b97b08851 88 TEST_ASSERT( mbedtls_ecdsa_verify( &grp, hash, hlen, &Q, &r_check, &s_check ) == 0 );
markrad 58:f50b97b08851 89
markrad 58:f50b97b08851 90 exit:
markrad 58:f50b97b08851 91 mbedtls_ecp_group_free( &grp );
markrad 58:f50b97b08851 92 mbedtls_ecp_point_free( &Q );
markrad 58:f50b97b08851 93 mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s );
markrad 58:f50b97b08851 94 mbedtls_mpi_free( &r_check ); mbedtls_mpi_free( &s_check );
markrad 58:f50b97b08851 95 }
markrad 58:f50b97b08851 96 /* END_CASE */
markrad 58:f50b97b08851 97
markrad 58:f50b97b08851 98 /* BEGIN_CASE depends_on:MBEDTLS_ECDSA_DETERMINISTIC */
markrad 58:f50b97b08851 99 void ecdsa_det_test_vectors( int id, char *d_str, int md_alg,
markrad 58:f50b97b08851 100 char *msg, char *r_str, char *s_str )
markrad 58:f50b97b08851 101 {
markrad 58:f50b97b08851 102 mbedtls_ecp_group grp;
markrad 58:f50b97b08851 103 mbedtls_mpi d, r, s, r_check, s_check;
markrad 58:f50b97b08851 104 unsigned char hash[MBEDTLS_MD_MAX_SIZE];
markrad 58:f50b97b08851 105 size_t hlen;
markrad 58:f50b97b08851 106 const mbedtls_md_info_t *md_info;
markrad 58:f50b97b08851 107
markrad 58:f50b97b08851 108 mbedtls_ecp_group_init( &grp );
markrad 58:f50b97b08851 109 mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s );
markrad 58:f50b97b08851 110 mbedtls_mpi_init( &r_check ); mbedtls_mpi_init( &s_check );
markrad 58:f50b97b08851 111 memset( hash, 0, sizeof( hash ) );
markrad 58:f50b97b08851 112
markrad 58:f50b97b08851 113 TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
markrad 58:f50b97b08851 114 TEST_ASSERT( mbedtls_mpi_read_string( &d, 16, d_str ) == 0 );
markrad 58:f50b97b08851 115 TEST_ASSERT( mbedtls_mpi_read_string( &r_check, 16, r_str ) == 0 );
markrad 58:f50b97b08851 116 TEST_ASSERT( mbedtls_mpi_read_string( &s_check, 16, s_str ) == 0 );
markrad 58:f50b97b08851 117
markrad 58:f50b97b08851 118 md_info = mbedtls_md_info_from_type( md_alg );
markrad 58:f50b97b08851 119 TEST_ASSERT( md_info != NULL );
markrad 58:f50b97b08851 120 hlen = mbedtls_md_get_size( md_info );
markrad 58:f50b97b08851 121 mbedtls_md( md_info, (const unsigned char *) msg, strlen( msg ), hash );
markrad 58:f50b97b08851 122
markrad 58:f50b97b08851 123 TEST_ASSERT( mbedtls_ecdsa_sign_det( &grp, &r, &s, &d, hash, hlen, md_alg ) == 0 );
markrad 58:f50b97b08851 124
markrad 58:f50b97b08851 125 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &r, &r_check ) == 0 );
markrad 58:f50b97b08851 126 TEST_ASSERT( mbedtls_mpi_cmp_mpi( &s, &s_check ) == 0 );
markrad 58:f50b97b08851 127
markrad 58:f50b97b08851 128 exit:
markrad 58:f50b97b08851 129 mbedtls_ecp_group_free( &grp );
markrad 58:f50b97b08851 130 mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s );
markrad 58:f50b97b08851 131 mbedtls_mpi_free( &r_check ); mbedtls_mpi_free( &s_check );
markrad 58:f50b97b08851 132 }
markrad 58:f50b97b08851 133 /* END_CASE */
markrad 58:f50b97b08851 134
markrad 58:f50b97b08851 135 /* BEGIN_CASE depends_on:MBEDTLS_SHA256_C */
markrad 58:f50b97b08851 136 void ecdsa_write_read_random( int id )
markrad 58:f50b97b08851 137 {
markrad 58:f50b97b08851 138 mbedtls_ecdsa_context ctx;
markrad 58:f50b97b08851 139 rnd_pseudo_info rnd_info;
markrad 58:f50b97b08851 140 unsigned char hash[32];
markrad 58:f50b97b08851 141 unsigned char sig[200];
markrad 58:f50b97b08851 142 size_t sig_len, i;
markrad 58:f50b97b08851 143
markrad 58:f50b97b08851 144 mbedtls_ecdsa_init( &ctx );
markrad 58:f50b97b08851 145 memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
markrad 58:f50b97b08851 146 memset( hash, 0, sizeof( hash ) );
markrad 58:f50b97b08851 147 memset( sig, 0x2a, sizeof( sig ) );
markrad 58:f50b97b08851 148
markrad 58:f50b97b08851 149 /* prepare material for signature */
markrad 58:f50b97b08851 150 TEST_ASSERT( rnd_pseudo_rand( &rnd_info, hash, sizeof( hash ) ) == 0 );
markrad 58:f50b97b08851 151
markrad 58:f50b97b08851 152 /* generate signing key */
markrad 58:f50b97b08851 153 TEST_ASSERT( mbedtls_ecdsa_genkey( &ctx, id, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 58:f50b97b08851 154
markrad 58:f50b97b08851 155 /* generate and write signature, then read and verify it */
markrad 58:f50b97b08851 156 TEST_ASSERT( mbedtls_ecdsa_write_signature( &ctx, MBEDTLS_MD_SHA256,
markrad 58:f50b97b08851 157 hash, sizeof( hash ),
markrad 58:f50b97b08851 158 sig, &sig_len, &rnd_pseudo_rand, &rnd_info ) == 0 );
markrad 58:f50b97b08851 159 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 160 sig, sig_len ) == 0 );
markrad 58:f50b97b08851 161
markrad 58:f50b97b08851 162 /* check we didn't write past the announced length */
markrad 58:f50b97b08851 163 for( i = sig_len; i < sizeof( sig ); i++ )
markrad 58:f50b97b08851 164 TEST_ASSERT( sig[i] == 0x2a );
markrad 58:f50b97b08851 165
markrad 58:f50b97b08851 166 /* try verification with invalid length */
markrad 58:f50b97b08851 167 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 168 sig, sig_len - 1 ) != 0 );
markrad 58:f50b97b08851 169 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 170 sig, sig_len + 1 ) != 0 );
markrad 58:f50b97b08851 171
markrad 58:f50b97b08851 172 /* try invalid sequence tag */
markrad 58:f50b97b08851 173 sig[0]++;
markrad 58:f50b97b08851 174 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 175 sig, sig_len ) != 0 );
markrad 58:f50b97b08851 176 sig[0]--;
markrad 58:f50b97b08851 177
markrad 58:f50b97b08851 178 /* try modifying r */
markrad 58:f50b97b08851 179 sig[10]++;
markrad 58:f50b97b08851 180 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 181 sig, sig_len ) != 0 );
markrad 58:f50b97b08851 182 sig[10]--;
markrad 58:f50b97b08851 183
markrad 58:f50b97b08851 184 /* try modifying s */
markrad 58:f50b97b08851 185 sig[sig_len - 1]++;
markrad 58:f50b97b08851 186 TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
markrad 58:f50b97b08851 187 sig, sig_len ) != 0 );
markrad 58:f50b97b08851 188 sig[sig_len - 1]--;
markrad 58:f50b97b08851 189
markrad 58:f50b97b08851 190 exit:
markrad 58:f50b97b08851 191 mbedtls_ecdsa_free( &ctx );
markrad 58:f50b97b08851 192 }
markrad 58:f50b97b08851 193 /* END_CASE */
markrad 58:f50b97b08851 194