Manuel Pégourié-Gonnard | a6916fa | 2014-05-02 15:17:29 +0200 | [diff] [blame] | 1 | /* BEGIN_HEADER */ |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 2 | #include "mbedtls/ccm.h" |
Manuel Pégourié-Gonnard | a6916fa | 2014-05-02 15:17:29 +0200 | [diff] [blame] | 3 | /* END_HEADER */ |
| 4 | |
| 5 | /* BEGIN_DEPENDENCIES |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 6 | * depends_on:MBEDTLS_CCM_C |
Manuel Pégourié-Gonnard | a6916fa | 2014-05-02 15:17:29 +0200 | [diff] [blame] | 7 | * END_DEPENDENCIES |
| 8 | */ |
| 9 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 10 | /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST:MBEDTLS_AES_C */ |
| 11 | void mbedtls_ccm_self_test( ) |
Manuel Pégourié-Gonnard | a6916fa | 2014-05-02 15:17:29 +0200 | [diff] [blame] | 12 | { |
Andres AG | 93012e8 | 2016-09-09 09:10:28 +0100 | [diff] [blame] | 13 | TEST_ASSERT( mbedtls_ccm_self_test( 1 ) == 0 ); |
Manuel Pégourié-Gonnard | a6916fa | 2014-05-02 15:17:29 +0200 | [diff] [blame] | 14 | } |
| 15 | /* END_CASE */ |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 16 | |
| 17 | /* BEGIN_CASE */ |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 18 | void mbedtls_ccm_setkey( int cipher_id, int key_size, int result ) |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 19 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 20 | mbedtls_ccm_context ctx; |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 21 | unsigned char key[32]; |
| 22 | int ret; |
| 23 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 24 | mbedtls_ccm_init( &ctx ); |
| 25 | |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 26 | memset( key, 0x2A, sizeof( key ) ); |
| 27 | TEST_ASSERT( (unsigned) key_size <= 8 * sizeof( key ) ); |
| 28 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 29 | ret = mbedtls_ccm_setkey( &ctx, cipher_id, key, key_size ); |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 30 | TEST_ASSERT( ret == result ); |
| 31 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 32 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 33 | mbedtls_ccm_free( &ctx ); |
Manuel Pégourié-Gonnard | 9fe0d13 | 2014-05-06 12:12:45 +0200 | [diff] [blame] | 34 | } |
| 35 | /* END_CASE */ |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 36 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 37 | /* BEGIN_CASE depends_on:MBEDTLS_AES_C */ |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 38 | void ccm_lengths( int msg_len, int iv_len, int add_len, int tag_len, int res ) |
| 39 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 40 | mbedtls_ccm_context ctx; |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 41 | unsigned char key[16]; |
| 42 | unsigned char msg[10]; |
| 43 | unsigned char iv[14]; |
| 44 | unsigned char add[10]; |
| 45 | unsigned char out[10]; |
| 46 | unsigned char tag[18]; |
| 47 | int decrypt_ret; |
| 48 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 49 | mbedtls_ccm_init( &ctx ); |
| 50 | |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 51 | memset( key, 0, sizeof( key ) ); |
| 52 | memset( msg, 0, sizeof( msg ) ); |
| 53 | memset( iv, 0, sizeof( iv ) ); |
| 54 | memset( add, 0, sizeof( add ) ); |
| 55 | memset( out, 0, sizeof( out ) ); |
| 56 | memset( tag, 0, sizeof( tag ) ); |
| 57 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 58 | TEST_ASSERT( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 59 | key, 8 * sizeof( key ) ) == 0 ); |
| 60 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 61 | TEST_ASSERT( mbedtls_ccm_encrypt_and_tag( &ctx, msg_len, iv, iv_len, add, add_len, |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 62 | msg, out, tag, tag_len ) == res ); |
| 63 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 64 | decrypt_ret = mbedtls_ccm_auth_decrypt( &ctx, msg_len, iv, iv_len, add, add_len, |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 65 | msg, out, tag, tag_len ); |
| 66 | |
| 67 | if( res == 0 ) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 68 | TEST_ASSERT( decrypt_ret == MBEDTLS_ERR_CCM_AUTH_FAILED ); |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 69 | else |
| 70 | TEST_ASSERT( decrypt_ret == res ); |
| 71 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 72 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 73 | mbedtls_ccm_free( &ctx ); |
Manuel Pégourié-Gonnard | 87df5ba | 2014-05-06 18:07:24 +0200 | [diff] [blame] | 74 | } |
| 75 | /* END_CASE */ |
| 76 | |
Janos Follath | 95ab93d | 2018-05-14 14:32:41 +0100 | [diff] [blame^] | 77 | /* BEGIN_CASE depends_on:MBEDTLS_AES_C */ |
| 78 | void ccm_star_lengths( int msg_len, int iv_len, int add_len, int tag_len, |
| 79 | int res ) |
| 80 | { |
| 81 | mbedtls_ccm_context ctx; |
| 82 | unsigned char key[16]; |
| 83 | unsigned char msg[10]; |
| 84 | unsigned char iv[14]; |
| 85 | unsigned char add[10]; |
| 86 | unsigned char out[10]; |
| 87 | unsigned char tag[18]; |
| 88 | int decrypt_ret; |
| 89 | |
| 90 | mbedtls_ccm_init( &ctx ); |
| 91 | |
| 92 | memset( key, 0, sizeof( key ) ); |
| 93 | memset( msg, 0, sizeof( msg ) ); |
| 94 | memset( iv, 0, sizeof( iv ) ); |
| 95 | memset( add, 0, sizeof( add ) ); |
| 96 | memset( out, 0, sizeof( out ) ); |
| 97 | memset( tag, 0, sizeof( tag ) ); |
| 98 | |
| 99 | TEST_ASSERT( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, |
| 100 | key, 8 * sizeof( key ) ) == 0 ); |
| 101 | |
| 102 | TEST_ASSERT( mbedtls_ccm_star_encrypt_and_tag( &ctx, msg_len, iv, iv_len, |
| 103 | add, add_len, msg, out, tag, tag_len ) == res ); |
| 104 | |
| 105 | decrypt_ret = mbedtls_ccm_star_auth_decrypt( &ctx, msg_len, iv, iv_len, add, |
| 106 | add_len, msg, out, tag, tag_len ); |
| 107 | |
| 108 | if( res == 0 && tag_len != 0 ) |
| 109 | TEST_ASSERT( decrypt_ret == MBEDTLS_ERR_CCM_AUTH_FAILED ); |
| 110 | else |
| 111 | TEST_ASSERT( decrypt_ret == res ); |
| 112 | |
| 113 | exit: |
| 114 | mbedtls_ccm_free( &ctx ); |
| 115 | } |
| 116 | /* END_CASE */ |
| 117 | |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 118 | /* BEGIN_CASE */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 119 | void mbedtls_ccm_encrypt_and_tag( int cipher_id, |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 120 | char *key_hex, char *msg_hex, |
| 121 | char *iv_hex, char *add_hex, |
| 122 | char *result_hex ) |
| 123 | { |
Manuel Pégourié-Gonnard | e8b8d01 | 2014-05-06 18:19:06 +0200 | [diff] [blame] | 124 | unsigned char key[32]; |
| 125 | unsigned char msg[50]; |
| 126 | unsigned char iv[13]; |
| 127 | unsigned char add[32]; |
Manuel Pégourié-Gonnard | e8b8d01 | 2014-05-06 18:19:06 +0200 | [diff] [blame] | 128 | unsigned char result[50]; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 129 | mbedtls_ccm_context ctx; |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 130 | size_t key_len, msg_len, iv_len, add_len, tag_len, result_len; |
| 131 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 132 | mbedtls_ccm_init( &ctx ); |
| 133 | |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 134 | memset( key, 0x00, sizeof( key ) ); |
| 135 | memset( msg, 0x00, sizeof( msg ) ); |
| 136 | memset( iv, 0x00, sizeof( iv ) ); |
| 137 | memset( add, 0x00, sizeof( add ) ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 138 | memset( result, 0x00, sizeof( result ) ); |
| 139 | |
| 140 | key_len = unhexify( key, key_hex ); |
| 141 | msg_len = unhexify( msg, msg_hex ); |
| 142 | iv_len = unhexify( iv, iv_hex ); |
| 143 | add_len = unhexify( add, add_hex ); |
| 144 | result_len = unhexify( result, result_hex ); |
| 145 | tag_len = result_len - msg_len; |
| 146 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 147 | TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, key, key_len * 8 ) == 0 ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 148 | |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 149 | /* Test with input == output */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 150 | TEST_ASSERT( mbedtls_ccm_encrypt_and_tag( &ctx, msg_len, iv, iv_len, add, add_len, |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 151 | msg, msg, msg + msg_len, tag_len ) == 0 ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 152 | |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 153 | TEST_ASSERT( memcmp( msg, result, result_len ) == 0 ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 154 | |
| 155 | /* Check we didn't write past the end */ |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 156 | TEST_ASSERT( msg[result_len] == 0 && msg[result_len + 1] == 0 ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 157 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 158 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 159 | mbedtls_ccm_free( &ctx ); |
Manuel Pégourié-Gonnard | 637eb3d | 2014-05-06 12:13:09 +0200 | [diff] [blame] | 160 | } |
| 161 | /* END_CASE */ |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 162 | |
| 163 | /* BEGIN_CASE */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 164 | void mbedtls_ccm_auth_decrypt( int cipher_id, |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 165 | char *key_hex, char *msg_hex, |
| 166 | char *iv_hex, char *add_hex, |
| 167 | int tag_len, char *result_hex ) |
| 168 | { |
Manuel Pégourié-Gonnard | e8b8d01 | 2014-05-06 18:19:06 +0200 | [diff] [blame] | 169 | unsigned char key[32]; |
| 170 | unsigned char msg[50]; |
| 171 | unsigned char iv[13]; |
| 172 | unsigned char add[32]; |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 173 | unsigned char tag[16]; |
Manuel Pégourié-Gonnard | e8b8d01 | 2014-05-06 18:19:06 +0200 | [diff] [blame] | 174 | unsigned char result[50]; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 175 | mbedtls_ccm_context ctx; |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 176 | size_t key_len, msg_len, iv_len, add_len, result_len; |
| 177 | int ret; |
| 178 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 179 | mbedtls_ccm_init( &ctx ); |
| 180 | |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 181 | memset( key, 0x00, sizeof( key ) ); |
| 182 | memset( msg, 0x00, sizeof( msg ) ); |
| 183 | memset( iv, 0x00, sizeof( iv ) ); |
| 184 | memset( add, 0x00, sizeof( add ) ); |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 185 | memset( tag, 0x00, sizeof( tag ) ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 186 | memset( result, 0x00, sizeof( result ) ); |
| 187 | |
| 188 | key_len = unhexify( key, key_hex ); |
| 189 | msg_len = unhexify( msg, msg_hex ); |
| 190 | iv_len = unhexify( iv, iv_hex ); |
| 191 | add_len = unhexify( add, add_hex ); |
| 192 | msg_len -= tag_len; |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 193 | memcpy( tag, msg + msg_len, tag_len ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 194 | |
| 195 | if( strcmp( "FAIL", result_hex ) == 0 ) |
| 196 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 197 | ret = MBEDTLS_ERR_CCM_AUTH_FAILED; |
Rich Evans | 63adb49 | 2015-02-10 12:44:07 +0000 | [diff] [blame] | 198 | result_len = -1; |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 199 | } |
| 200 | else |
| 201 | { |
| 202 | ret = 0; |
| 203 | result_len = unhexify( result, result_hex ); |
| 204 | } |
| 205 | |
Manuel Pégourié-Gonnard | 6963ff0 | 2015-04-28 18:02:54 +0200 | [diff] [blame] | 206 | TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, key, key_len * 8 ) == 0 ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 207 | |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 208 | /* Test with input == output */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 209 | TEST_ASSERT( mbedtls_ccm_auth_decrypt( &ctx, msg_len, iv, iv_len, add, add_len, |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 210 | msg, msg, msg + msg_len, tag_len ) == ret ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 211 | |
| 212 | if( ret == 0 ) |
| 213 | { |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 214 | TEST_ASSERT( memcmp( msg, result, result_len ) == 0 ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 215 | } |
| 216 | else |
| 217 | { |
| 218 | size_t i; |
| 219 | |
| 220 | for( i = 0; i < msg_len; i++ ) |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 221 | TEST_ASSERT( msg[i] == 0 ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 222 | } |
| 223 | |
Manuel Pégourié-Gonnard | 0f6b66d | 2014-05-07 14:43:46 +0200 | [diff] [blame] | 224 | /* Check we didn't write past the end (where the original tag is) */ |
| 225 | TEST_ASSERT( memcmp( msg + msg_len, tag, tag_len ) == 0 ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 226 | |
Paul Bakker | bd51b26 | 2014-07-10 15:26:12 +0200 | [diff] [blame] | 227 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 228 | mbedtls_ccm_free( &ctx ); |
Manuel Pégourié-Gonnard | ce77d55 | 2014-05-06 18:06:52 +0200 | [diff] [blame] | 229 | } |
| 230 | /* END_CASE */ |