2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
15 #include <openssl/ct.h>
16 #include <openssl/err.h>
17 #include <openssl/pem.h>
18 #include <openssl/x509.h>
19 #include <openssl/x509v3.h>
24 /* Used when declaring buffers to read text files into */
25 #define CT_TEST_MAX_FILE_SIZE 8096
27 static char *certs_dir
= NULL
;
28 static char *ct_dir
= NULL
;
30 typedef struct ct_test_fixture
{
31 const char *test_case_name
;
32 /* The CT log store to use during tests */
33 CTLOG_STORE
* ctlog_store
;
34 /* Set the following to test handling of SCTs in X509 certificates */
35 const char *certs_dir
;
36 char *certificate_file
;
38 int expected_sct_count
;
39 /* Set the following to test handling of SCTs in TLS format */
40 const unsigned char *tls_sct_list
;
41 size_t tls_sct_list_len
;
42 STACK_OF(SCT
) *sct_list
;
44 * A file to load the expected SCT text from.
45 * This text will be compared to the actual text output during the test.
46 * A maximum of |CT_TEST_MAX_FILE_SIZE| bytes will be read of this file.
49 const char *sct_text_file
;
50 /* Whether to test the validity of the SCT(s) */
55 static CT_TEST_FIXTURE
set_up(const char *const test_case_name
)
57 CT_TEST_FIXTURE fixture
;
59 CTLOG_STORE
*ctlog_store
;
61 memset(&fixture
, 0, sizeof(fixture
));
63 ctlog_store
= CTLOG_STORE_new();
65 if (ctlog_store
== NULL
) {
67 fprintf(stderr
, "Failed to create a new CT log store\n");
71 if (CTLOG_STORE_load_default_file(ctlog_store
) != 1) {
73 fprintf(stderr
, "Failed to load CT log list\n");
77 fixture
.test_case_name
= test_case_name
;
78 fixture
.ctlog_store
= ctlog_store
;
87 static void tear_down(CT_TEST_FIXTURE fixture
)
89 CTLOG_STORE_free(fixture
.ctlog_store
);
90 SCT_LIST_free(fixture
.sct_list
);
91 ERR_print_errors_fp(stderr
);
94 static char *mk_file_path(const char *dir
, const char *file
)
96 char *full_file
= NULL
;
97 size_t full_file_l
= 0;
99 #ifndef OPENSSL_SYS_VMS
103 full_file_l
= strlen(dir
) + strlen(sep
) + strlen(file
) + 1;
104 full_file
= OPENSSL_zalloc(full_file_l
);
105 if (full_file
!= NULL
) {
106 OPENSSL_strlcpy(full_file
, dir
, full_file_l
);
107 OPENSSL_strlcat(full_file
, sep
, full_file_l
);
108 OPENSSL_strlcat(full_file
, file
, full_file_l
);
114 static X509
*load_pem_cert(const char *dir
, const char *file
)
117 char *file_path
= mk_file_path(dir
, file
);
119 if (file_path
!= NULL
) {
120 BIO
*cert_io
= BIO_new_file(file_path
, "r");
121 OPENSSL_free(file_path
);
124 cert
= PEM_read_bio_X509(cert_io
, NULL
, NULL
, NULL
);
131 static int read_text_file(const char *dir
, const char *file
,
132 char *buffer
, int buffer_length
)
135 char *file_path
= mk_file_path(dir
, file
);
137 if (file_path
!= NULL
) {
138 BIO
*file_io
= BIO_new_file(file_path
, "r");
139 OPENSSL_free(file_path
);
141 if (file_io
!= NULL
) {
142 result
= BIO_read(file_io
, buffer
, buffer_length
);
150 static int compare_sct_list_printout(STACK_OF(SCT
) *sct
,
151 const char *expected_output
)
153 BIO
*text_buffer
= NULL
;
154 char *actual_output
= NULL
;
157 text_buffer
= BIO_new(BIO_s_mem());
158 if (text_buffer
== NULL
) {
159 fprintf(stderr
, "Unable to allocate buffer\n");
163 SCT_LIST_print(sct
, text_buffer
, 0, "\n", NULL
);
165 /* Append null terminator because we're about to use the buffer contents
167 if (BIO_write(text_buffer
, "\0", 1) != 1) {
168 fprintf(stderr
, "Failed to append null terminator to SCT text\n");
172 BIO_get_mem_data(text_buffer
, &actual_output
);
173 result
= strcmp(actual_output
, expected_output
);
177 "Expected SCT printout:\n%s\nActual SCT printout:\n%s\n",
178 expected_output
, actual_output
);
182 BIO_free(text_buffer
);
186 static int compare_extension_printout(X509_EXTENSION
*extension
,
187 const char *expected_output
)
189 BIO
*text_buffer
= NULL
;
190 char *actual_output
= NULL
;
193 text_buffer
= BIO_new(BIO_s_mem());
194 if (text_buffer
== NULL
) {
195 fprintf(stderr
, "Unable to allocate buffer\n");
199 if (!X509V3_EXT_print(text_buffer
, extension
, X509V3_EXT_DEFAULT
, 0)) {
200 fprintf(stderr
, "Failed to print extension\n");
204 /* Append null terminator because we're about to use the buffer contents
206 if (BIO_write(text_buffer
, "\0", 1) != 1) {
208 "Failed to append null terminator to extension text\n");
212 BIO_get_mem_data(text_buffer
, &actual_output
);
213 result
= strcmp(actual_output
, expected_output
);
217 "Expected SCT printout:\n%s\nActual SCT printout:\n%s\n",
218 expected_output
, actual_output
);
222 BIO_free(text_buffer
);
226 static int assert_validity(CT_TEST_FIXTURE fixture
,
228 CT_POLICY_EVAL_CTX
*policy_ctx
) {
229 int invalid_sct_count
= 0;
230 int valid_sct_count
= 0;
233 if (SCT_LIST_validate(scts
, policy_ctx
) < 0) {
234 fprintf(stderr
, "Error verifying SCTs\n");
238 for (i
= 0; i
< sk_SCT_num(scts
); ++i
) {
239 SCT
*sct_i
= sk_SCT_value(scts
, i
);
240 switch (SCT_get_validation_status(sct_i
)) {
241 case SCT_VALIDATION_STATUS_VALID
:
244 case SCT_VALIDATION_STATUS_INVALID
:
247 case SCT_VALIDATION_STATUS_NOT_SET
:
248 case SCT_VALIDATION_STATUS_UNKNOWN_LOG
:
249 case SCT_VALIDATION_STATUS_UNVERIFIED
:
250 case SCT_VALIDATION_STATUS_UNKNOWN_VERSION
:
251 /* Ignore other validation statuses. */
256 if (valid_sct_count
!= fixture
.expected_sct_count
) {
257 int unverified_sct_count
= sk_SCT_num(scts
) -
258 invalid_sct_count
- valid_sct_count
;
261 "%d SCTs failed verification\n"
262 "%d SCTs passed verification (%d expected)\n"
263 "%d SCTs were unverified\n",
266 fixture
.expected_sct_count
,
267 unverified_sct_count
);
274 static int execute_cert_test(CT_TEST_FIXTURE fixture
)
277 X509
*cert
= NULL
, *issuer
= NULL
;
278 STACK_OF(SCT
) *scts
= NULL
;
280 char expected_sct_text
[CT_TEST_MAX_FILE_SIZE
];
281 int sct_text_len
= 0;
282 unsigned char *tls_sct_list
= NULL
;
283 size_t tls_sct_list_len
= 0;
284 CT_POLICY_EVAL_CTX
*ct_policy_ctx
= CT_POLICY_EVAL_CTX_new();
286 if (fixture
.sct_text_file
!= NULL
) {
287 sct_text_len
= read_text_file(fixture
.sct_dir
, fixture
.sct_text_file
,
289 CT_TEST_MAX_FILE_SIZE
- 1);
291 if (sct_text_len
< 0) {
292 fprintf(stderr
, "Test data file not found: %s\n",
293 fixture
.sct_text_file
);
297 expected_sct_text
[sct_text_len
] = '\0';
300 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(
301 ct_policy_ctx
, fixture
.ctlog_store
);
303 if (fixture
.certificate_file
!= NULL
) {
304 int sct_extension_index
;
305 X509_EXTENSION
*sct_extension
= NULL
;
306 cert
= load_pem_cert(fixture
.certs_dir
, fixture
.certificate_file
);
309 fprintf(stderr
, "Unable to load certificate: %s\n",
310 fixture
.certificate_file
);
314 CT_POLICY_EVAL_CTX_set1_cert(ct_policy_ctx
, cert
);
316 if (fixture
.issuer_file
!= NULL
) {
317 issuer
= load_pem_cert(fixture
.certs_dir
, fixture
.issuer_file
);
319 if (issuer
== NULL
) {
320 fprintf(stderr
, "Unable to load issuer certificate: %s\n",
321 fixture
.issuer_file
);
325 CT_POLICY_EVAL_CTX_set1_issuer(ct_policy_ctx
, issuer
);
328 sct_extension_index
=
329 X509_get_ext_by_NID(cert
, NID_ct_precert_scts
, -1);
330 sct_extension
= X509_get_ext(cert
, sct_extension_index
);
331 if (fixture
.expected_sct_count
> 0) {
332 if (sct_extension
== NULL
) {
333 fprintf(stderr
, "SCT extension not found in: %s\n",
334 fixture
.certificate_file
);
338 if (fixture
.sct_text_file
339 && compare_extension_printout(sct_extension
,
340 expected_sct_text
)) {
344 if (fixture
.test_validity
) {
347 scts
= X509V3_EXT_d2i(sct_extension
);
348 for (i
= 0; i
< sk_SCT_num(scts
); ++i
) {
349 SCT
*sct_i
= sk_SCT_value(scts
, i
);
351 if (!SCT_set_source(sct_i
, SCT_SOURCE_X509V3_EXTENSION
)) {
353 "Error setting SCT source to X509v3 extension\n");
358 if (!assert_validity(fixture
, scts
, ct_policy_ctx
))
361 } else if (sct_extension
!= NULL
) {
363 "Expected no SCTs, but found SCT extension in: %s\n",
364 fixture
.certificate_file
);
369 if (fixture
.tls_sct_list
!= NULL
) {
370 const unsigned char *p
= fixture
.tls_sct_list
;
371 if (o2i_SCT_LIST(&scts
, &p
, fixture
.tls_sct_list_len
) == NULL
) {
372 fprintf(stderr
, "Failed to decode SCTs from TLS format\n");
376 if (fixture
.test_validity
&& cert
!= NULL
) {
377 if (!assert_validity(fixture
, scts
, ct_policy_ctx
))
381 if (fixture
.sct_text_file
382 && compare_sct_list_printout(scts
, expected_sct_text
)) {
386 tls_sct_list_len
= i2o_SCT_LIST(scts
, &tls_sct_list
);
387 if (tls_sct_list_len
!= fixture
.tls_sct_list_len
||
388 memcmp(fixture
.tls_sct_list
, tls_sct_list
, tls_sct_list_len
) != 0) {
390 "Failed to encode SCTs into TLS format correctly\n");
401 CT_POLICY_EVAL_CTX_free(ct_policy_ctx
);
402 OPENSSL_free(tls_sct_list
);
406 #define SETUP_CT_TEST_FIXTURE() SETUP_TEST_FIXTURE(CT_TEST_FIXTURE, set_up)
407 #define EXECUTE_CT_TEST() EXECUTE_TEST(execute_cert_test, tear_down)
409 static int test_no_scts_in_certificate()
411 SETUP_CT_TEST_FIXTURE();
412 fixture
.certs_dir
= certs_dir
;
413 fixture
.certificate_file
= "leaf.pem";
414 fixture
.issuer_file
= "subinterCA.pem";
415 fixture
.expected_sct_count
= 0;
419 static int test_one_sct_in_certificate()
421 SETUP_CT_TEST_FIXTURE();
422 fixture
.certs_dir
= certs_dir
;
423 fixture
.certificate_file
= "embeddedSCTs1.pem";
424 fixture
.issuer_file
= "embeddedSCTs1_issuer.pem";
425 fixture
.expected_sct_count
= 1;
426 fixture
.sct_dir
= certs_dir
;
427 fixture
.sct_text_file
= "embeddedSCTs1.sct";
431 static int test_multiple_scts_in_certificate()
433 SETUP_CT_TEST_FIXTURE();
434 fixture
.certs_dir
= certs_dir
;
435 fixture
.certificate_file
= "embeddedSCTs3.pem";
436 fixture
.issuer_file
= "embeddedSCTs3_issuer.pem";
437 fixture
.expected_sct_count
= 3;
438 fixture
.sct_dir
= certs_dir
;
439 fixture
.sct_text_file
= "embeddedSCTs3.sct";
443 static int test_verify_one_sct()
445 SETUP_CT_TEST_FIXTURE();
446 fixture
.certs_dir
= certs_dir
;
447 fixture
.certificate_file
= "embeddedSCTs1.pem";
448 fixture
.issuer_file
= "embeddedSCTs1_issuer.pem";
449 fixture
.expected_sct_count
= 1;
450 fixture
.test_validity
= 1;
454 static int test_verify_multiple_scts()
456 SETUP_CT_TEST_FIXTURE();
457 fixture
.certs_dir
= certs_dir
;
458 fixture
.certificate_file
= "embeddedSCTs3.pem";
459 fixture
.issuer_file
= "embeddedSCTs3_issuer.pem";
460 fixture
.expected_sct_count
= 3;
461 fixture
.test_validity
= 1;
465 static int test_decode_tls_sct()
467 const unsigned char tls_sct_list
[] = "\x00\x78" /* length of list */
471 "\xDF\x1C\x2E\xC1\x15\x00\x94\x52\x47\xA9\x61\x68\x32\x5D\xDC\x5C\x79"
472 "\x59\xE8\xF7\xC6\xD3\x88\xFC\x00\x2E\x0B\xBD\x3F\x74\xD7\x64"
473 "\x00\x00\x01\x3D\xDB\x27\xDF\x93" /* timestamp */
474 "\x00\x00" /* extensions length */
476 "\x04\x03" /* hash and signature algorithms */
477 "\x00\x47" /* signature length */
479 "\x30\x45\x02\x20\x48\x2F\x67\x51\xAF\x35\xDB\xA6\x54\x36\xBE\x1F\xD6"
480 "\x64\x0F\x3D\xBF\x9A\x41\x42\x94\x95\x92\x45\x30\x28\x8F\xA3\xE5\xE2"
481 "\x3E\x06\x02\x21\x00\xE4\xED\xC0\xDB\x3A\xC5\x72\xB1\xE2\xF5\xE8\xAB"
482 "\x6A\x68\x06\x53\x98\x7D\xCF\x41\x02\x7D\xFE\xFF\xA1\x05\x51\x9D\x89"
485 SETUP_CT_TEST_FIXTURE();
486 fixture
.tls_sct_list
= tls_sct_list
;
487 fixture
.tls_sct_list_len
= 0x7a;
488 fixture
.sct_dir
= ct_dir
;
489 fixture
.sct_text_file
= "tls1.sct";
493 static int test_encode_tls_sct()
495 const unsigned char log_id
[] = "\xDF\x1C\x2E\xC1\x15\x00\x94\x52\x47\xA9"
496 "\x61\x68\x32\x5D\xDC\x5C\x79\x59\xE8\xF7\xC6\xD3\x88\xFC\x00\x2E"
497 "\x0B\xBD\x3F\x74\xD7\x64";
499 const unsigned char signature
[] = "\x45\x02\x20\x48\x2F\x67\x51\xAF\x35"
500 "\xDB\xA6\x54\x36\xBE\x1F\xD6\x64\x0F\x3D\xBF\x9A\x41\x42\x94\x95"
501 "\x92\x45\x30\x28\x8F\xA3\xE5\xE2\x3E\x06\x02\x21\x00\xE4\xED\xC0"
502 "\xDB\x3A\xC5\x72\xB1\xE2\xF5\xE8\xAB\x6A\x68\x06\x53\x98\x7D\xCF"
503 "\x41\x02\x7D\xFE\xFF\xA1\x05\x51\x9D\x89\xED\xBF\x08";
505 SETUP_CT_TEST_FIXTURE();
507 STACK_OF(SCT
) *sct_list
= sk_SCT_new_null();
508 SCT
*sct
= SCT_new();
509 if (!SCT_set_version(sct
, SCT_VERSION_V1
)) {
510 fprintf(stderr
, "Failed to set SCT version\n");
513 if (!SCT_set1_log_id(sct
, log_id
, 32)) {
514 fprintf(stderr
, "Failed to set SCT log ID\n");
517 SCT_set_timestamp(sct
, 1);
518 if (!SCT_set_signature_nid(sct
, NID_ecdsa_with_SHA256
)) {
519 fprintf(stderr
, "Failed to set SCT signature NID\n");
522 if (!SCT_set1_signature(sct
, signature
, 71)) {
523 fprintf(stderr
, "Failed to set SCT signature\n");
526 sk_SCT_push(sct_list
, sct
);
528 fixture
.sct_list
= sct_list
;
529 fixture
.sct_dir
= ct_dir
;
530 fixture
.sct_text_file
= "tls1.sct";
534 int main(int argc
, char *argv
[])
537 char *tmp_env
= NULL
;
539 tmp_env
= getenv("OPENSSL_DEBUG_MEMORY");
540 if (tmp_env
!= NULL
&& strcmp(tmp_env
, "on") == 0)
541 CRYPTO_set_mem_debug(1);
542 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON
);
544 tmp_env
= getenv("CT_DIR");
545 ct_dir
= OPENSSL_strdup(tmp_env
!= NULL
? tmp_env
: "ct");
546 tmp_env
= getenv("CERTS_DIR");
547 certs_dir
= OPENSSL_strdup(tmp_env
!= NULL
? tmp_env
: "certs");
549 ADD_TEST(test_no_scts_in_certificate
);
550 ADD_TEST(test_one_sct_in_certificate
);
551 ADD_TEST(test_multiple_scts_in_certificate
);
552 ADD_TEST(test_verify_one_sct
);
553 ADD_TEST(test_verify_multiple_scts
);
554 ADD_TEST(test_decode_tls_sct
);
555 ADD_TEST(test_encode_tls_sct
);
557 result
= run_tests(argv
[0]);
558 ERR_print_errors_fp(stderr
);
560 OPENSSL_free(ct_dir
);
561 OPENSSL_free(certs_dir
);
563 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
564 if (CRYPTO_mem_leaks_fp(stderr
) <= 0)
571 #else /* OPENSSL_NO_CT */
573 int main(int argc
, char* argv
[])
578 #endif /* OPENSSL_NO_CT */