#include "olm/olm.h" #include "unittest.hh" #include <cstddef> #include <cstdint> #include <cstring> struct MockRandom { MockRandom(std::uint8_t tag, std::uint8_t offset = 0) : tag(tag), current(offset) {} void operator()( std::uint8_t * bytes, std::size_t length ) { while (length > 32) { bytes[0] = tag; std::memset(bytes + 1, current, 31); length -= 32; bytes += 32; current += 1; } if (length) { bytes[0] = tag; std::memset(bytes + 1, current, length - 1); current += 1; } } std::uint8_t tag; std::uint8_t current; }; int main() { { /** Pickle account test */ TestCase test_case("Pickle account test"); MockRandom mock_random('P'); std::uint8_t account_buffer[::olm_account_size()]; ::OlmAccount *account = ::olm_account(account_buffer); std::uint8_t random[::olm_create_account_random_length(account)]; mock_random(random, sizeof(random)); ::olm_create_account(account, random, sizeof(random)); std::uint8_t ot_random[::olm_account_generate_one_time_keys_random_length( account, 42 )]; mock_random(ot_random, sizeof(ot_random)); ::olm_account_generate_one_time_keys(account, 42, ot_random, sizeof(ot_random)); std::size_t pickle_length = ::olm_pickle_account_length(account); std::uint8_t pickle1[pickle_length]; ::olm_pickle_account(account, "secret_key", 10, pickle1, pickle_length); std::uint8_t pickle2[pickle_length]; std::memcpy(pickle2, pickle1, pickle_length); std::uint8_t account_buffer2[::olm_account_size()]; ::OlmAccount *account2 = ::olm_account(account_buffer2); assert_not_equals(std::size_t(-1), ::olm_unpickle_account( account2, "secret_key", 10, pickle2, pickle_length )); assert_equals(pickle_length, ::olm_pickle_account_length(account2)); ::olm_pickle_account(account2, "secret_key", 10, pickle2, pickle_length); assert_equals(pickle1, pickle2, pickle_length); } { TestCase test_case("Old account unpickle test"); // this uses the old pickle format, which did not use enough space // for the Ed25519 key. We should reject it. std::uint8_t pickle[] = "x3h9er86ygvq56pM1yesdAxZou4ResPQC9Rszk/fhEL9JY/umtZ2N/foL/SUgVXS" "v0IxHHZTafYjDdzJU9xr8dQeBoOTGfV9E/lCqDGBnIlu7SZndqjEKXtzGyQr4sP4" "K/A/8TOu9iK2hDFszy6xETiousHnHgh2ZGbRUh4pQx+YMm8ZdNZeRnwFGLnrWyf9" "O5TmXua1FcU"; std::uint8_t account_buffer[::olm_account_size()]; ::OlmAccount *account = ::olm_account(account_buffer); assert_equals( std::size_t(-1), ::olm_unpickle_account( account, "", 0, pickle, sizeof(pickle)-1 ) ); assert_equals( std::string("BAD_LEGACY_ACCOUNT_PICKLE"), std::string(::olm_account_last_error(account)) ); } { /** Pickle session test */ TestCase test_case("Pickle session test"); MockRandom mock_random('P'); std::uint8_t account_buffer[::olm_account_size()]; ::OlmAccount *account = ::olm_account(account_buffer); std::uint8_t random[::olm_create_account_random_length(account)]; mock_random(random, sizeof(random)); ::olm_create_account(account, random, sizeof(random)); std::uint8_t session_buffer[::olm_session_size()]; ::OlmSession *session = ::olm_session(session_buffer); std::uint8_t identity_key[32]; std::uint8_t one_time_key[32]; mock_random(identity_key, sizeof(identity_key)); mock_random(one_time_key, sizeof(one_time_key)); std::uint8_t random2[::olm_create_outbound_session_random_length(session)]; mock_random(random2, sizeof(random2)); ::olm_create_outbound_session( session, account, identity_key, sizeof(identity_key), one_time_key, sizeof(one_time_key), random2, sizeof(random2) ); std::size_t pickle_length = ::olm_pickle_session_length(session); std::uint8_t pickle1[pickle_length]; ::olm_pickle_session(session, "secret_key", 10, pickle1, pickle_length); std::uint8_t pickle2[pickle_length]; std::memcpy(pickle2, pickle1, pickle_length); std::uint8_t session_buffer2[::olm_session_size()]; ::OlmSession *session2 = ::olm_session(session_buffer2); assert_not_equals(std::size_t(-1), ::olm_unpickle_session( session2, "secret_key", 10, pickle2, pickle_length )); assert_equals(pickle_length, ::olm_pickle_session_length(session2)); ::olm_pickle_session(session2, "secret_key", 10, pickle2, pickle_length); assert_equals(pickle1, pickle2, pickle_length); } { /** Loopback test */ TestCase test_case("Loopback test"); MockRandom mock_random_a('A', 0x00); MockRandom mock_random_b('B', 0x80); std::uint8_t a_account_buffer[::olm_account_size()]; ::OlmAccount *a_account = ::olm_account(a_account_buffer); std::uint8_t a_random[::olm_create_account_random_length(a_account)]; mock_random_a(a_random, sizeof(a_random)); ::olm_create_account(a_account, a_random, sizeof(a_random)); std::uint8_t b_account_buffer[::olm_account_size()]; ::OlmAccount *b_account = ::olm_account(b_account_buffer); std::uint8_t b_random[::olm_create_account_random_length(b_account)]; mock_random_b(b_random, sizeof(b_random)); ::olm_create_account(b_account, b_random, sizeof(b_random)); std::uint8_t o_random[::olm_account_generate_one_time_keys_random_length( b_account, 42 )]; mock_random_b(o_random, sizeof(o_random)); ::olm_account_generate_one_time_keys(b_account, 42, o_random, sizeof(o_random)); std::uint8_t b_id_keys[::olm_account_identity_keys_length(b_account)]; std::uint8_t b_ot_keys[::olm_account_one_time_keys_length(b_account)]; ::olm_account_identity_keys(b_account, b_id_keys, sizeof(b_id_keys)); ::olm_account_one_time_keys(b_account, b_ot_keys, sizeof(b_ot_keys)); std::uint8_t a_session_buffer[::olm_session_size()]; ::OlmSession *a_session = ::olm_session(a_session_buffer); std::uint8_t a_rand[::olm_create_outbound_session_random_length(a_session)]; mock_random_a(a_rand, sizeof(a_rand)); assert_not_equals(std::size_t(-1), ::olm_create_outbound_session( a_session, a_account, b_id_keys + 15, 43, b_ot_keys + 25, 43, a_rand, sizeof(a_rand) )); std::uint8_t plaintext[] = "Hello, World"; std::uint8_t message_1[::olm_encrypt_message_length(a_session, 12)]; std::uint8_t a_message_random[::olm_encrypt_random_length(a_session)]; mock_random_a(a_message_random, sizeof(a_message_random)); assert_equals(std::size_t(0), ::olm_encrypt_message_type(a_session)); assert_not_equals(std::size_t(-1), ::olm_encrypt( a_session, plaintext, 12, a_message_random, sizeof(a_message_random), message_1, sizeof(message_1) )); std::uint8_t tmp_message_1[sizeof(message_1)]; std::memcpy(tmp_message_1, message_1, sizeof(message_1)); std::uint8_t b_session_buffer[::olm_account_size()]; ::OlmSession *b_session = ::olm_session(b_session_buffer); ::olm_create_inbound_session( b_session, b_account, tmp_message_1, sizeof(message_1) ); std::memcpy(tmp_message_1, message_1, sizeof(message_1)); std::uint8_t plaintext_1[::olm_decrypt_max_plaintext_length( b_session, 0, tmp_message_1, sizeof(message_1) )]; std::memcpy(tmp_message_1, message_1, sizeof(message_1)); assert_equals(std::size_t(12), ::olm_decrypt( b_session, 0, tmp_message_1, sizeof(message_1), plaintext_1, sizeof(plaintext_1) )); assert_equals(plaintext, plaintext_1, 12); std::uint8_t message_2[::olm_encrypt_message_length(b_session, 12)]; std::uint8_t b_message_random[::olm_encrypt_random_length(b_session)]; mock_random_b(b_message_random, sizeof(b_message_random)); assert_equals(std::size_t(1), ::olm_encrypt_message_type(b_session)); assert_not_equals(std::size_t(-1), ::olm_encrypt( b_session, plaintext, 12, b_message_random, sizeof(b_message_random), message_2, sizeof(message_2) )); std::uint8_t tmp_message_2[sizeof(message_2)]; std::memcpy(tmp_message_2, message_2, sizeof(message_2)); std::uint8_t plaintext_2[::olm_decrypt_max_plaintext_length( a_session, 1, tmp_message_2, sizeof(message_2) )]; std::memcpy(tmp_message_2, message_2, sizeof(message_2)); assert_equals(std::size_t(12), ::olm_decrypt( a_session, 1, tmp_message_2, sizeof(message_2), plaintext_2, sizeof(plaintext_2) )); assert_equals(plaintext, plaintext_2, 12); std::memcpy(tmp_message_2, message_2, sizeof(message_2)); assert_equals(std::size_t(-1), ::olm_decrypt( a_session, 1, tmp_message_2, sizeof(message_2), plaintext_2, sizeof(plaintext_2) )); std::uint8_t a_session_id[::olm_session_id_length(a_session)]; assert_not_equals(std::size_t(-1), ::olm_session_id( a_session, a_session_id, sizeof(a_session_id) )); std::uint8_t b_session_id[::olm_session_id_length(b_session)]; assert_not_equals(std::size_t(-1), ::olm_session_id( b_session, b_session_id, sizeof(b_session_id) )); assert_equals(sizeof(a_session_id), sizeof(b_session_id)); assert_equals(a_session_id, b_session_id, sizeof(b_session_id)); } { /** More messages test */ TestCase test_case("More messages test"); MockRandom mock_random_a('A', 0x00); MockRandom mock_random_b('B', 0x80); std::uint8_t a_account_buffer[::olm_account_size()]; ::OlmAccount *a_account = ::olm_account(a_account_buffer); std::uint8_t a_random[::olm_create_account_random_length(a_account)]; mock_random_a(a_random, sizeof(a_random)); ::olm_create_account(a_account, a_random, sizeof(a_random)); std::uint8_t b_account_buffer[::olm_account_size()]; ::OlmAccount *b_account = ::olm_account(b_account_buffer); std::uint8_t b_random[::olm_create_account_random_length(b_account)]; mock_random_b(b_random, sizeof(b_random)); ::olm_create_account(b_account, b_random, sizeof(b_random)); std::uint8_t o_random[::olm_account_generate_one_time_keys_random_length( b_account, 42 )]; mock_random_b(o_random, sizeof(o_random)); ::olm_account_generate_one_time_keys(b_account, 42, o_random, sizeof(o_random)); std::uint8_t b_id_keys[::olm_account_identity_keys_length(b_account)]; std::uint8_t b_ot_keys[::olm_account_one_time_keys_length(b_account)]; ::olm_account_identity_keys(b_account, b_id_keys, sizeof(b_id_keys)); ::olm_account_one_time_keys(b_account, b_ot_keys, sizeof(b_ot_keys)); std::uint8_t a_session_buffer[::olm_session_size()]; ::OlmSession *a_session = ::olm_session(a_session_buffer); std::uint8_t a_rand[::olm_create_outbound_session_random_length(a_session)]; mock_random_a(a_rand, sizeof(a_rand)); assert_not_equals(std::size_t(-1), ::olm_create_outbound_session( a_session, a_account, b_id_keys + 15, 43, b_ot_keys + 25, 43, a_rand, sizeof(a_rand) )); std::uint8_t plaintext[] = "Hello, World"; std::uint8_t message_1[::olm_encrypt_message_length(a_session, 12)]; std::uint8_t a_message_random[::olm_encrypt_random_length(a_session)]; mock_random_a(a_message_random, sizeof(a_message_random)); assert_equals(std::size_t(0), ::olm_encrypt_message_type(a_session)); assert_not_equals(std::size_t(-1), ::olm_encrypt( a_session, plaintext, 12, a_message_random, sizeof(a_message_random), message_1, sizeof(message_1) )); std::uint8_t tmp_message_1[sizeof(message_1)]; std::memcpy(tmp_message_1, message_1, sizeof(message_1)); std::uint8_t b_session_buffer[::olm_account_size()]; ::OlmSession *b_session = ::olm_session(b_session_buffer); ::olm_create_inbound_session( b_session, b_account, tmp_message_1, sizeof(message_1) ); std::memcpy(tmp_message_1, message_1, sizeof(message_1)); std::uint8_t plaintext_1[::olm_decrypt_max_plaintext_length( b_session, 0, tmp_message_1, sizeof(message_1) )]; std::memcpy(tmp_message_1, message_1, sizeof(message_1)); assert_equals(std::size_t(12), ::olm_decrypt( b_session, 0, tmp_message_1, sizeof(message_1), plaintext_1, sizeof(plaintext_1) )); for (unsigned i = 0; i < 8; ++i) { { std::uint8_t msg_a[::olm_encrypt_message_length(a_session, 12)]; std::uint8_t rnd_a[::olm_encrypt_random_length(a_session)]; mock_random_a(rnd_a, sizeof(rnd_a)); std::size_t type_a = ::olm_encrypt_message_type(a_session); assert_not_equals(std::size_t(-1), ::olm_encrypt( a_session, plaintext, 12, rnd_a, sizeof(rnd_a), msg_a, sizeof(msg_a) )); std::uint8_t tmp_a[sizeof(msg_a)]; std::memcpy(tmp_a, msg_a, sizeof(msg_a)); std::uint8_t out_a[::olm_decrypt_max_plaintext_length( b_session, type_a, tmp_a, sizeof(tmp_a) )]; std::memcpy(tmp_a, msg_a, sizeof(msg_a)); assert_equals(std::size_t(12), ::olm_decrypt( b_session, type_a, msg_a, sizeof(msg_a), out_a, sizeof(out_a) )); } { std::uint8_t msg_b[::olm_encrypt_message_length(b_session, 12)]; std::uint8_t rnd_b[::olm_encrypt_random_length(b_session)]; mock_random_b(rnd_b, sizeof(rnd_b)); std::size_t type_b = ::olm_encrypt_message_type(b_session); assert_not_equals(std::size_t(-1), ::olm_encrypt( b_session, plaintext, 12, rnd_b, sizeof(rnd_b), msg_b, sizeof(msg_b) )); std::uint8_t tmp_b[sizeof(msg_b)]; std::memcpy(tmp_b, msg_b, sizeof(msg_b)); std::uint8_t out_b[::olm_decrypt_max_plaintext_length( a_session, type_b, tmp_b, sizeof(tmp_b) )]; std::memcpy(tmp_b, msg_b, sizeof(msg_b)); assert_equals(std::size_t(12), ::olm_decrypt( a_session, type_b, msg_b, sizeof(msg_b), out_b, sizeof(out_b) )); } } } }