Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 1 | /* BEGIN_HEADER */ |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 2 | #include "mbedtls/ecdsa.h" |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 3 | /* END_HEADER */ |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 4 | |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 5 | /* BEGIN_DEPENDENCIES |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 6 | * depends_on:MBEDTLS_ECDSA_C |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 7 | * END_DEPENDENCIES |
| 8 | */ |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 9 | |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 10 | /* BEGIN_CASE */ |
| 11 | void ecdsa_prim_random( int id ) |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 12 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 13 | mbedtls_ecp_group grp; |
| 14 | mbedtls_ecp_point Q; |
| 15 | mbedtls_mpi d, r, s; |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 16 | rnd_pseudo_info rnd_info; |
| 17 | unsigned char buf[66]; |
| 18 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 19 | mbedtls_ecp_group_init( &grp ); |
| 20 | mbedtls_ecp_point_init( &Q ); |
| 21 | mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s ); |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 22 | memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) ); |
Manuel Pégourié-Gonnard | 450a163 | 2013-01-27 09:08:18 +0100 | [diff] [blame] | 23 | memset( buf, 0, sizeof( buf ) ); |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 24 | |
| 25 | /* prepare material for signature */ |
| 26 | TEST_ASSERT( rnd_pseudo_rand( &rnd_info, buf, sizeof( buf ) ) == 0 ); |
Manuel Pégourié-Gonnard | e3a062b | 2015-05-11 18:46:47 +0200 | [diff] [blame] | 27 | TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 28 | TEST_ASSERT( mbedtls_ecp_gen_keypair( &grp, &d, &Q, &rnd_pseudo_rand, &rnd_info ) |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 29 | == 0 ); |
| 30 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 31 | TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, buf, sizeof( buf ), |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 32 | &rnd_pseudo_rand, &rnd_info ) == 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 33 | TEST_ASSERT( mbedtls_ecdsa_verify( &grp, buf, sizeof( buf ), &Q, &r, &s ) == 0 ); |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 34 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 35 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 36 | mbedtls_ecp_group_free( &grp ); |
| 37 | mbedtls_ecp_point_free( &Q ); |
| 38 | mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s ); |
Manuel Pégourié-Gonnard | d1c7150 | 2013-01-26 19:09:07 +0100 | [diff] [blame] | 39 | } |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 40 | /* END_CASE */ |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 41 | |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 42 | /* BEGIN_CASE */ |
Azim Khan | f1aaec9 | 2017-05-30 14:23:15 +0100 | [diff] [blame] | 43 | void ecdsa_prim_test_vectors( int id, char * d_str, char * xQ_str, |
Azim Khan | 5fcca46 | 2018-06-29 11:05:32 +0100 | [diff] [blame] | 44 | char * yQ_str, data_t * rnd_buf, |
| 45 | data_t * hash, char * r_str, char * s_str, |
Azim Khan | f1aaec9 | 2017-05-30 14:23:15 +0100 | [diff] [blame] | 46 | int result ) |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 47 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 48 | mbedtls_ecp_group grp; |
| 49 | mbedtls_ecp_point Q; |
| 50 | mbedtls_mpi d, r, s, r_check, s_check; |
Manuel Pégourié-Gonnard | fae079e | 2014-01-06 11:00:07 +0100 | [diff] [blame] | 51 | rnd_buf_info rnd_info; |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 52 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 53 | mbedtls_ecp_group_init( &grp ); |
| 54 | mbedtls_ecp_point_init( &Q ); |
| 55 | mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s ); |
| 56 | mbedtls_mpi_init( &r_check ); mbedtls_mpi_init( &s_check ); |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 57 | |
Manuel Pégourié-Gonnard | e3a062b | 2015-05-11 18:46:47 +0200 | [diff] [blame] | 58 | TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 59 | TEST_ASSERT( mbedtls_ecp_point_read_string( &Q, 16, xQ_str, yQ_str ) == 0 ); |
| 60 | TEST_ASSERT( mbedtls_mpi_read_string( &d, 16, d_str ) == 0 ); |
| 61 | TEST_ASSERT( mbedtls_mpi_read_string( &r_check, 16, r_str ) == 0 ); |
| 62 | TEST_ASSERT( mbedtls_mpi_read_string( &s_check, 16, s_str ) == 0 ); |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 63 | rnd_info.buf = rnd_buf->x; |
| 64 | rnd_info.length = rnd_buf->len; |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 65 | |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 66 | /* Fix rnd_buf->x by shifting it left if necessary */ |
Manuel Pégourié-Gonnard | fae079e | 2014-01-06 11:00:07 +0100 | [diff] [blame] | 67 | if( grp.nbits % 8 != 0 ) |
| 68 | { |
| 69 | unsigned char shift = 8 - ( grp.nbits % 8 ); |
| 70 | size_t i; |
| 71 | |
| 72 | for( i = 0; i < rnd_info.length - 1; i++ ) |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 73 | rnd_buf->x[i] = rnd_buf->x[i] << shift | rnd_buf->x[i+1] >> ( 8 - shift ); |
Manuel Pégourié-Gonnard | fae079e | 2014-01-06 11:00:07 +0100 | [diff] [blame] | 74 | |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 75 | rnd_buf->x[rnd_info.length-1] <<= shift; |
Manuel Pégourié-Gonnard | fae079e | 2014-01-06 11:00:07 +0100 | [diff] [blame] | 76 | } |
| 77 | |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 78 | TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, hash->x, hash->len, |
Darryl Green | f5bcbed | 2017-11-17 17:09:31 +0000 | [diff] [blame] | 79 | rnd_buffer_rand, &rnd_info ) == result ); |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 80 | |
Darryl Green | f5bcbed | 2017-11-17 17:09:31 +0000 | [diff] [blame] | 81 | if ( result == 0) |
| 82 | { |
| 83 | TEST_ASSERT( mbedtls_mpi_cmp_mpi( &r, &r_check ) == 0 ); |
| 84 | TEST_ASSERT( mbedtls_mpi_cmp_mpi( &s, &s_check ) == 0 ); |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 85 | |
Azim Khan | d30ca13 | 2017-06-09 04:32:58 +0100 | [diff] [blame] | 86 | TEST_ASSERT( mbedtls_ecdsa_verify( &grp, hash->x, hash->len, &Q, &r_check, &s_check ) == 0 ); |
Manuel Pégourié-Gonnard | d0a66cc | 2018-06-13 09:53:21 +0200 | [diff] [blame] | 87 | |
| 88 | TEST_ASSERT( mbedtls_mpi_sub_int( &r, &r, 1 ) == 0 ); |
| 89 | TEST_ASSERT( mbedtls_mpi_add_int( &s, &s, 1 ) == 0 ); |
| 90 | |
Manuel Pégourié-Gonnard | 125af94 | 2018-09-11 11:08:12 +0200 | [diff] [blame^] | 91 | TEST_ASSERT( mbedtls_ecdsa_verify( &grp, hash->x, hash->len, |
Manuel Pégourié-Gonnard | d0a66cc | 2018-06-13 09:53:21 +0200 | [diff] [blame] | 92 | &Q, &r, &s_check ) == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
Manuel Pégourié-Gonnard | 125af94 | 2018-09-11 11:08:12 +0200 | [diff] [blame^] | 93 | TEST_ASSERT( mbedtls_ecdsa_verify( &grp, hash->x, hash->len, |
Manuel Pégourié-Gonnard | d0a66cc | 2018-06-13 09:53:21 +0200 | [diff] [blame] | 94 | &Q, &r_check, &s ) == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
Manuel Pégourié-Gonnard | 125af94 | 2018-09-11 11:08:12 +0200 | [diff] [blame^] | 95 | TEST_ASSERT( mbedtls_ecdsa_verify( &grp, hash->x, hash->len, |
Manuel Pégourié-Gonnard | d0a66cc | 2018-06-13 09:53:21 +0200 | [diff] [blame] | 96 | &grp.G, &r_check, &s_check ) == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
Darryl Green | f5bcbed | 2017-11-17 17:09:31 +0000 | [diff] [blame] | 97 | } |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 98 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 99 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 100 | mbedtls_ecp_group_free( &grp ); |
| 101 | mbedtls_ecp_point_free( &Q ); |
| 102 | mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s ); |
| 103 | mbedtls_mpi_free( &r_check ); mbedtls_mpi_free( &s_check ); |
Manuel Pégourié-Gonnard | 602a897 | 2013-01-27 08:10:28 +0100 | [diff] [blame] | 104 | } |
Paul Bakker | 33b43f1 | 2013-08-20 11:48:36 +0200 | [diff] [blame] | 105 | /* END_CASE */ |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 106 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 107 | /* BEGIN_CASE depends_on:MBEDTLS_ECDSA_DETERMINISTIC */ |
Azim Khan | f1aaec9 | 2017-05-30 14:23:15 +0100 | [diff] [blame] | 108 | void ecdsa_det_test_vectors( int id, char * d_str, int md_alg, char * msg, |
| 109 | char * r_str, char * s_str ) |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 110 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 111 | mbedtls_ecp_group grp; |
| 112 | mbedtls_mpi d, r, s, r_check, s_check; |
| 113 | unsigned char hash[MBEDTLS_MD_MAX_SIZE]; |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 114 | size_t hlen; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 115 | const mbedtls_md_info_t *md_info; |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 116 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 117 | mbedtls_ecp_group_init( &grp ); |
| 118 | mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s ); |
| 119 | mbedtls_mpi_init( &r_check ); mbedtls_mpi_init( &s_check ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 120 | memset( hash, 0, sizeof( hash ) ); |
| 121 | |
Manuel Pégourié-Gonnard | e3a062b | 2015-05-11 18:46:47 +0200 | [diff] [blame] | 122 | TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 123 | TEST_ASSERT( mbedtls_mpi_read_string( &d, 16, d_str ) == 0 ); |
| 124 | TEST_ASSERT( mbedtls_mpi_read_string( &r_check, 16, r_str ) == 0 ); |
| 125 | TEST_ASSERT( mbedtls_mpi_read_string( &s_check, 16, s_str ) == 0 ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 126 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 127 | md_info = mbedtls_md_info_from_type( md_alg ); |
Paul Bakker | 94b916c | 2014-04-17 16:07:20 +0200 | [diff] [blame] | 128 | TEST_ASSERT( md_info != NULL ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 129 | hlen = mbedtls_md_get_size( md_info ); |
| 130 | mbedtls_md( md_info, (const unsigned char *) msg, strlen( msg ), hash ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 131 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 132 | TEST_ASSERT( mbedtls_ecdsa_sign_det( &grp, &r, &s, &d, hash, hlen, md_alg ) == 0 ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 133 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 134 | TEST_ASSERT( mbedtls_mpi_cmp_mpi( &r, &r_check ) == 0 ); |
| 135 | TEST_ASSERT( mbedtls_mpi_cmp_mpi( &s, &s_check ) == 0 ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 136 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 137 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 138 | mbedtls_ecp_group_free( &grp ); |
| 139 | mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s ); |
| 140 | mbedtls_mpi_free( &r_check ); mbedtls_mpi_free( &s_check ); |
Manuel Pégourié-Gonnard | 4daaef7 | 2014-01-06 14:25:56 +0100 | [diff] [blame] | 141 | } |
| 142 | /* END_CASE */ |
| 143 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 144 | /* BEGIN_CASE depends_on:MBEDTLS_SHA256_C */ |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 145 | void ecdsa_write_read_random( int id ) |
| 146 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 147 | mbedtls_ecdsa_context ctx; |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 148 | rnd_pseudo_info rnd_info; |
Manuel Pégourié-Gonnard | dfdcac9 | 2015-03-31 11:41:42 +0200 | [diff] [blame] | 149 | unsigned char hash[32]; |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 150 | unsigned char sig[200]; |
| 151 | size_t sig_len, i; |
| 152 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 153 | mbedtls_ecdsa_init( &ctx ); |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 154 | memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) ); |
| 155 | memset( hash, 0, sizeof( hash ) ); |
| 156 | memset( sig, 0x2a, sizeof( sig ) ); |
| 157 | |
| 158 | /* prepare material for signature */ |
| 159 | TEST_ASSERT( rnd_pseudo_rand( &rnd_info, hash, sizeof( hash ) ) == 0 ); |
| 160 | |
| 161 | /* generate signing key */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 162 | TEST_ASSERT( mbedtls_ecdsa_genkey( &ctx, id, &rnd_pseudo_rand, &rnd_info ) == 0 ); |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 163 | |
| 164 | /* generate and write signature, then read and verify it */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 165 | TEST_ASSERT( mbedtls_ecdsa_write_signature( &ctx, MBEDTLS_MD_SHA256, |
Manuel Pégourié-Gonnard | dfdcac9 | 2015-03-31 11:41:42 +0200 | [diff] [blame] | 166 | hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 167 | sig, &sig_len, &rnd_pseudo_rand, &rnd_info ) == 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 168 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 169 | sig, sig_len ) == 0 ); |
| 170 | |
| 171 | /* check we didn't write past the announced length */ |
| 172 | for( i = sig_len; i < sizeof( sig ); i++ ) |
| 173 | TEST_ASSERT( sig[i] == 0x2a ); |
| 174 | |
| 175 | /* try verification with invalid length */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 176 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 177 | sig, sig_len - 1 ) != 0 ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 178 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 179 | sig, sig_len + 1 ) != 0 ); |
| 180 | |
| 181 | /* try invalid sequence tag */ |
| 182 | sig[0]++; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 183 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 184 | sig, sig_len ) != 0 ); |
| 185 | sig[0]--; |
| 186 | |
| 187 | /* try modifying r */ |
| 188 | sig[10]++; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 189 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | 1ed2505 | 2017-04-21 10:04:02 +0200 | [diff] [blame] | 190 | sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 191 | sig[10]--; |
| 192 | |
| 193 | /* try modifying s */ |
| 194 | sig[sig_len - 1]++; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 195 | TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ), |
Manuel Pégourié-Gonnard | 1ed2505 | 2017-04-21 10:04:02 +0200 | [diff] [blame] | 196 | sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 197 | sig[sig_len - 1]--; |
| 198 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 199 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 200 | mbedtls_ecdsa_free( &ctx ); |
Manuel Pégourié-Gonnard | b694b48 | 2013-08-08 13:30:57 +0200 | [diff] [blame] | 201 | } |
| 202 | /* END_CASE */ |
Manuel Pégourié-Gonnard | 937340b | 2014-01-06 10:27:16 +0100 | [diff] [blame] | 203 | |
Manuel Pégourié-Gonnard | 722e515 | 2017-04-21 11:04:47 +0200 | [diff] [blame] | 204 | /* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE */ |
| 205 | void ecdsa_read_restart( int id, char *k_str, char *h_str, char *s_str, |
| 206 | int max_ops, int min_restart, int max_restart ) |
| 207 | { |
| 208 | mbedtls_ecdsa_context ctx; |
| 209 | mbedtls_ecdsa_restart_ctx rs_ctx; |
| 210 | unsigned char hash[64]; |
| 211 | unsigned char sig[200]; |
| 212 | unsigned char pk[65]; |
| 213 | size_t sig_len, hash_len, pk_len; |
| 214 | int ret, cnt_restart; |
| 215 | |
| 216 | mbedtls_ecdsa_init( &ctx ); |
| 217 | mbedtls_ecdsa_restart_init( &rs_ctx ); |
| 218 | |
| 219 | hash_len = unhexify(hash, h_str); |
| 220 | sig_len = unhexify(sig, s_str); |
| 221 | pk_len = unhexify(pk, k_str); |
| 222 | |
| 223 | TEST_ASSERT( mbedtls_ecp_group_load( &ctx.grp, id ) == 0 ); |
| 224 | TEST_ASSERT( mbedtls_ecp_point_read_binary( &ctx.grp, &ctx.Q, pk, pk_len ) == 0 ); |
| 225 | |
| 226 | mbedtls_ecp_set_max_ops( max_ops ); |
| 227 | |
| 228 | cnt_restart = 0; |
| 229 | do { |
| 230 | ret = mbedtls_ecdsa_read_signature_restartable( &ctx, |
| 231 | hash, hash_len, sig, sig_len, &rs_ctx ); |
| 232 | } while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart ); |
| 233 | |
| 234 | TEST_ASSERT( ret == 0 ); |
| 235 | TEST_ASSERT( cnt_restart >= min_restart ); |
| 236 | TEST_ASSERT( cnt_restart <= max_restart ); |
| 237 | |
| 238 | /* try modifying r */ |
| 239 | sig[10]++; |
| 240 | do { |
| 241 | ret = mbedtls_ecdsa_read_signature_restartable( &ctx, |
| 242 | hash, hash_len, sig, sig_len, &rs_ctx ); |
| 243 | } while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ); |
| 244 | TEST_ASSERT( ret == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
| 245 | sig[10]--; |
| 246 | |
| 247 | /* try modifying s */ |
| 248 | sig[sig_len - 1]++; |
| 249 | do { |
| 250 | ret = mbedtls_ecdsa_read_signature_restartable( &ctx, |
| 251 | hash, hash_len, sig, sig_len, &rs_ctx ); |
| 252 | } while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ); |
| 253 | TEST_ASSERT( ret == MBEDTLS_ERR_ECP_VERIFY_FAILED ); |
| 254 | sig[sig_len - 1]--; |
| 255 | |
Manuel Pégourié-Gonnard | 46ba7f3 | 2017-08-28 12:20:39 +0200 | [diff] [blame] | 256 | /* Do we leak memory when aborting an operation? |
| 257 | * This test only makes sense when we actually restart */ |
| 258 | if( min_restart > 0 ) |
| 259 | { |
| 260 | ret = mbedtls_ecdsa_read_signature_restartable( &ctx, |
| 261 | hash, hash_len, sig, sig_len, &rs_ctx ); |
| 262 | TEST_ASSERT( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ); |
| 263 | } |
Manuel Pégourié-Gonnard | 722e515 | 2017-04-21 11:04:47 +0200 | [diff] [blame] | 264 | |
| 265 | exit: |
| 266 | mbedtls_ecdsa_free( &ctx ); |
| 267 | mbedtls_ecdsa_restart_free( &rs_ctx ); |
| 268 | } |
| 269 | /* END_CASE */ |
Manuel Pégourié-Gonnard | eb402f3 | 2017-04-25 10:57:30 +0200 | [diff] [blame] | 270 | |
| 271 | /* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE:MBEDTLS_ECDSA_DETERMINISTIC */ |
| 272 | void ecdsa_write_restart( int id, char *d_str, int md_alg, |
| 273 | char *msg, char *sig_str, |
| 274 | int max_ops, int min_restart, int max_restart ) |
| 275 | { |
| 276 | int ret, cnt_restart; |
| 277 | mbedtls_ecdsa_restart_ctx rs_ctx; |
| 278 | mbedtls_ecdsa_context ctx; |
| 279 | unsigned char hash[MBEDTLS_MD_MAX_SIZE]; |
| 280 | unsigned char sig[MBEDTLS_ECDSA_MAX_LEN]; |
| 281 | unsigned char sig_check[MBEDTLS_ECDSA_MAX_LEN]; |
| 282 | size_t hlen, slen, slen_check; |
| 283 | const mbedtls_md_info_t *md_info; |
| 284 | |
| 285 | mbedtls_ecdsa_restart_init( &rs_ctx ); |
| 286 | mbedtls_ecdsa_init( &ctx ); |
| 287 | memset( hash, 0, sizeof( hash ) ); |
| 288 | memset( sig, 0, sizeof( sig ) ); |
| 289 | memset( sig_check, 0, sizeof( sig_check ) ); |
| 290 | |
| 291 | TEST_ASSERT( mbedtls_ecp_group_load( &ctx.grp, id ) == 0 ); |
| 292 | TEST_ASSERT( mbedtls_mpi_read_string( &ctx.d, 16, d_str ) == 0 ); |
| 293 | slen_check = unhexify( sig_check, sig_str ); |
| 294 | |
| 295 | md_info = mbedtls_md_info_from_type( md_alg ); |
| 296 | TEST_ASSERT( md_info != NULL ); |
| 297 | |
| 298 | hlen = mbedtls_md_get_size( md_info ); |
| 299 | mbedtls_md( md_info, (const unsigned char *) msg, strlen( msg ), hash ); |
| 300 | |
| 301 | mbedtls_ecp_set_max_ops( max_ops ); |
| 302 | |
| 303 | slen = sizeof( sig ); |
| 304 | cnt_restart = 0; |
| 305 | do { |
| 306 | ret = mbedtls_ecdsa_write_signature_restartable( &ctx, |
| 307 | md_alg, hash, hlen, sig, &slen, NULL, NULL, &rs_ctx ); |
| 308 | } while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart ); |
| 309 | |
| 310 | TEST_ASSERT( ret == 0 ); |
| 311 | TEST_ASSERT( slen == slen_check ); |
| 312 | TEST_ASSERT( memcmp( sig, sig_check, slen ) == 0 ); |
| 313 | |
| 314 | TEST_ASSERT( cnt_restart >= min_restart ); |
| 315 | TEST_ASSERT( cnt_restart <= max_restart ); |
| 316 | |
Manuel Pégourié-Gonnard | 46ba7f3 | 2017-08-28 12:20:39 +0200 | [diff] [blame] | 317 | /* Do we leak memory when aborting an operation? |
| 318 | * This test only makes sense when we actually restart */ |
| 319 | if( min_restart > 0 ) |
| 320 | { |
| 321 | ret = mbedtls_ecdsa_write_signature_restartable( &ctx, |
| 322 | md_alg, hash, hlen, sig, &slen, NULL, NULL, &rs_ctx ); |
| 323 | TEST_ASSERT( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ); |
| 324 | } |
Manuel Pégourié-Gonnard | eb402f3 | 2017-04-25 10:57:30 +0200 | [diff] [blame] | 325 | |
| 326 | exit: |
| 327 | mbedtls_ecdsa_restart_free( &rs_ctx ); |
| 328 | mbedtls_ecdsa_free( &ctx ); |
| 329 | } |
| 330 | /* END_CASE */ |