#include #include #include #include "../src/signal_protocol.h" #include "key_helper.h" #include "test_common.h" /* * Since the expected output from all these operations is random, these tests * use a special fake random number generator. * The expected output for these tests was generated by running the equivalent * functions in the Java version with a similarly fake random number generator. */ signal_context *global_context; uint8_t test_next_random; int fake_random_generator(uint8_t *data, size_t len, void *user_data) { unsigned int i = 0; for(i = 0; i < len; i++) { data[i] = test_next_random++; } return 0; } void test_setup() { int result; result = signal_context_create(&global_context, 0); ck_assert_int_eq(result, 0); signal_context_set_log_function(global_context, test_log); signal_crypto_provider provider = { .random_func = fake_random_generator, .hmac_sha256_init_func = test_hmac_sha256_init, .hmac_sha256_update_func = test_hmac_sha256_update, .hmac_sha256_final_func = test_hmac_sha256_final, .hmac_sha256_cleanup_func = test_hmac_sha256_cleanup, .user_data = 0 }; signal_context_set_crypto_provider(global_context, &provider); test_next_random = 0; } void test_teardown() { signal_context_destroy(global_context); } START_TEST(test_generate_identity_key_pair) { int result = 0; uint8_t identityKeyPair[] = { 0x0a, 0x21, 0x05, 0x8f, 0x40, 0xc5, 0xad, 0xb6, 0x8f, 0x25, 0x62, 0x4a, 0xe5, 0xb2, 0x14, 0xea, 0x76, 0x7a, 0x6e, 0xc9, 0x4d, 0x82, 0x9d, 0x3d, 0x7b, 0x5e, 0x1a, 0xd1, 0xba, 0x6f, 0x3e, 0x21, 0x38, 0x28, 0x5f, 0x12, 0x20, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x5f }; ratchet_identity_key_pair *key_pair = 0; signal_buffer *buffer = 0; result = signal_protocol_key_helper_generate_identity_key_pair(&key_pair, global_context); ck_assert_int_eq(result, 0); result = ratchet_identity_key_pair_serialize(&buffer, key_pair); ck_assert_int_ge(result, 0); uint8_t *data = signal_buffer_data(buffer); size_t len = signal_buffer_len(buffer); ck_assert_int_eq(len, sizeof(identityKeyPair)); ck_assert_int_eq(memcmp(identityKeyPair, data, len), 0); /* Cleanup */ SIGNAL_UNREF(key_pair); signal_buffer_free(buffer); } END_TEST START_TEST(test_generate_pre_keys) { uint8_t preKey1[] = { 0x08, 0x01, 0x12, 0x21, 0x05, 0x8f, 0x40, 0xc5, 0xad, 0xb6, 0x8f, 0x25, 0x62, 0x4a, 0xe5, 0xb2, 0x14, 0xea, 0x76, 0x7a, 0x6e, 0xc9, 0x4d, 0x82, 0x9d, 0x3d, 0x7b, 0x5e, 0x1a, 0xd1, 0xba, 0x6f, 0x3e, 0x21, 0x38, 0x28, 0x5f, 0x1a, 0x20, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x5f }; uint8_t preKey2[] = { 0x08, 0x02, 0x12, 0x21, 0x05, 0x35, 0x80, 0x72, 0xd6, 0x36, 0x58, 0x80, 0xd1, 0xae, 0xea, 0x32, 0x9a, 0xdf, 0x91, 0x21, 0x38, 0x38, 0x51, 0xed, 0x21, 0xa2, 0x8e, 0x3b, 0x75, 0xe9, 0x65, 0xd0, 0xd2, 0xcd, 0x16, 0x62, 0x54, 0x1a, 0x20, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x7f }; uint8_t preKey3[] = { 0x08, 0x03, 0x12, 0x21, 0x05, 0x79, 0xa6, 0x31, 0xee, 0xde, 0x1b, 0xf9, 0xc9, 0x8f, 0x12, 0x03, 0x2c, 0xde, 0xad, 0xd0, 0xe7, 0xa0, 0x79, 0x39, 0x8f, 0xc7, 0x86, 0xb8, 0x8c, 0xc8, 0x46, 0xec, 0x89, 0xaf, 0x85, 0xa5, 0x1a, 0x1a, 0x20, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f }; uint8_t preKey4[] = { 0x08, 0x04, 0x12, 0x21, 0x05, 0x67, 0x5d, 0xd5, 0x74, 0xed, 0x77, 0x89, 0x31, 0x0b, 0x3d, 0x2e, 0x76, 0x81, 0xf3, 0x79, 0x0b, 0x46, 0x6c, 0x77, 0x3b, 0x15, 0x21, 0xfe, 0xcf, 0x36, 0x57, 0x79, 0x58, 0x37, 0x1e, 0xa5, 0x2f, 0x1a, 0x20, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f }; int result = 0; signal_protocol_key_helper_pre_key_list_node *head = 0; signal_protocol_key_helper_pre_key_list_node *cur_node = 0; session_pre_key *pre_key1 = 0; session_pre_key *pre_key2 = 0; session_pre_key *pre_key3 = 0; session_pre_key *pre_key4 = 0; signal_buffer *pre_key_buf1 = 0; signal_buffer *pre_key_buf2 = 0; signal_buffer *pre_key_buf3 = 0; signal_buffer *pre_key_buf4 = 0; /* Generate a list of 4 pre-keys */ result = signal_protocol_key_helper_generate_pre_keys(&head, 1, 4, global_context); ck_assert_int_eq(result, 0); ck_assert_ptr_ne(head, 0); cur_node = head; /* Explicitly iterate the list to get the 4 generated keys */ pre_key1 = signal_protocol_key_helper_key_list_element(cur_node); cur_node = signal_protocol_key_helper_key_list_next(cur_node); ck_assert_ptr_ne(cur_node, 0); pre_key2 = signal_protocol_key_helper_key_list_element(cur_node); cur_node = signal_protocol_key_helper_key_list_next(cur_node); ck_assert_ptr_ne(cur_node, 0); pre_key3 = signal_protocol_key_helper_key_list_element(cur_node); cur_node = signal_protocol_key_helper_key_list_next(cur_node); ck_assert_ptr_ne(cur_node, 0); pre_key4 = signal_protocol_key_helper_key_list_element(cur_node); cur_node = signal_protocol_key_helper_key_list_next(cur_node); ck_assert_ptr_eq(cur_node, 0); /* Get the serialized data for the 4 generated keys */ result = session_pre_key_serialize(&pre_key_buf1, pre_key1); ck_assert_int_ge(result, 0); result = session_pre_key_serialize(&pre_key_buf2, pre_key2); ck_assert_int_ge(result, 0); result = session_pre_key_serialize(&pre_key_buf3, pre_key3); ck_assert_int_ge(result, 0); result = session_pre_key_serialize(&pre_key_buf4, pre_key4); ck_assert_int_ge(result, 0); /* Compare to the expected values */ ck_assert_int_eq(signal_buffer_len(pre_key_buf1), sizeof(preKey1)); ck_assert_int_eq(memcmp(preKey1, signal_buffer_data(pre_key_buf1), sizeof(preKey1)), 0); ck_assert_int_eq(signal_buffer_len(pre_key_buf2), sizeof(preKey2)); ck_assert_int_eq(memcmp(preKey2, signal_buffer_data(pre_key_buf2), sizeof(preKey2)), 0); ck_assert_int_eq(signal_buffer_len(pre_key_buf3), sizeof(preKey3)); ck_assert_int_eq(memcmp(preKey3, signal_buffer_data(pre_key_buf3), sizeof(preKey3)), 0); ck_assert_int_eq(signal_buffer_len(pre_key_buf4), sizeof(preKey4)); ck_assert_int_eq(memcmp(preKey4, signal_buffer_data(pre_key_buf4), sizeof(preKey4)), 0); /* Cleanup */ signal_protocol_key_helper_key_list_free(head); signal_buffer_free(pre_key_buf1); signal_buffer_free(pre_key_buf2); signal_buffer_free(pre_key_buf3); signal_buffer_free(pre_key_buf4); } END_TEST START_TEST(test_generate_signed_pre_key) { int64_t timestamp = 1411152577000LL; uint8_t signedPreKey[] = { 0x08, 0xd2, 0x09, 0x12, 0x21, 0x05, 0x35, 0x80, 0x72, 0xd6, 0x36, 0x58, 0x80, 0xd1, 0xae, 0xea, 0x32, 0x9a, 0xdf, 0x91, 0x21, 0x38, 0x38, 0x51, 0xed, 0x21, 0xa2, 0x8e, 0x3b, 0x75, 0xe9, 0x65, 0xd0, 0xd2, 0xcd, 0x16, 0x62, 0x54, 0x1a, 0x20, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x7f, 0x22, 0x40, 0xd8, 0x12, 0x88, 0xf2, 0x77, 0x38, 0x08, 0x86, 0xac, 0xa4, 0x06, 0x2f, 0x06, 0xd8, 0x30, 0xe6, 0xab, 0x73, 0x39, 0x4c, 0x85, 0xa0, 0xc0, 0x5a, 0x81, 0x16, 0x3d, 0x21, 0x9c, 0x77, 0xed, 0x41, 0xc1, 0x2d, 0x72, 0x61, 0x25, 0x4f, 0xf4, 0x11, 0x64, 0xba, 0x6d, 0x89, 0x5c, 0x09, 0x6c, 0x5e, 0x1f, 0xa6, 0xaa, 0x42, 0x53, 0x8d, 0xb9, 0xe2, 0x6b, 0xbb, 0xb0, 0xb3, 0x6c, 0x99, 0x74, 0x04, 0x29, 0xe8, 0x81, 0x3f, 0x8f, 0x48, 0x01, 0x00, 0x00 }; int result = 0; ratchet_identity_key_pair *identity_key_pair = 0; session_signed_pre_key *signed_pre_key = 0; signal_buffer *buffer = 0; result = signal_protocol_key_helper_generate_identity_key_pair(&identity_key_pair, global_context); ck_assert_int_eq(result, 0); result = signal_protocol_key_helper_generate_signed_pre_key(&signed_pre_key, identity_key_pair, 1234, timestamp, global_context); ck_assert_int_eq(result, 0); result = session_signed_pre_key_serialize(&buffer, signed_pre_key); ck_assert_int_ge(result, 0); uint8_t *data = signal_buffer_data(buffer); size_t len = signal_buffer_len(buffer); ck_assert_int_eq(len, sizeof(signedPreKey)); ck_assert_int_eq(memcmp(signedPreKey, data, len), 0); /* Cleanup */ SIGNAL_UNREF(identity_key_pair); SIGNAL_UNREF(signed_pre_key); signal_buffer_free(buffer); } END_TEST Suite *key_helper_suite(void) { Suite *suite = suite_create("key_helper"); TCase *tcase = tcase_create("case"); tcase_add_checked_fixture(tcase, test_setup, test_teardown); tcase_add_test(tcase, test_generate_identity_key_pair); tcase_add_test(tcase, test_generate_pre_keys); tcase_add_test(tcase, test_generate_signed_pre_key); suite_add_tcase(suite, tcase); return suite; } int main(void) { int number_failed; Suite *suite; SRunner *runner; suite = key_helper_suite(); runner = srunner_create(suite); srunner_run_all(runner, CK_VERBOSE); number_failed = srunner_ntests_failed(runner); srunner_free(runner); return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE; }