Commit a98acb8f authored by Mark Haines's avatar Mark Haines
Browse files

Test out of order delivery of messages

parent ea1ace8e
......@@ -36,11 +36,17 @@ char const * TEST_CASE;
template<typename T>
void assert_equals(
const char *file,
unsigned line,
const char *expected_expr,
const char *actual_expr,
T const & expected,
T const & actual
) {
if (expected != actual) {
std::cout << "FAILED: " << TEST_CASE << std::endl;
std::cout << file << ":" << line << std::endl;
std::cout << expected_expr << " == " << actual_expr << std::endl;
std::cout << "Expected: " << expected << std::endl;
std::cout << "Actual: " << actual << std::endl;
std::exit(1);
......@@ -49,18 +55,27 @@ void assert_equals(
void assert_equals(
const char *file,
unsigned line,
const char *expected_expr,
const char *actual_expr,
std::uint8_t const * expected,
std::uint8_t const * actual,
std::size_t length
) {
if (std::memcmp(expected, actual, length)) {
std::cout << "FAILED: " << TEST_CASE << std::endl;
std::cout << file << ":" << line << std::endl;
std::cout << expected_expr << " == " << actual_expr << std::endl;
print_hex(std::cout << "Expected: ", expected, length) << std::endl;
print_hex(std::cout << "Actual: ", actual, length) << std::endl;
std::exit(1);
}
}
#define assert_equals(expected, actual, ...) assert_equals( \
__FILE__, __LINE__, #expected, #actual, expected, actual, ##__VA_ARGS__ \
)
class TestCase {
public:
......
......@@ -18,9 +18,6 @@
int main() {
{ /* Loopback test case */
TestCase test_case("Axolotl Loopback 1");
std::uint8_t root_info[] = "Axolotl";
std::uint8_t ratchet_info[] = "AxolotlRatchet";
std::uint8_t message_info[] = "AxolotlMessageKeys";
......@@ -31,31 +28,35 @@ axolotl::KdfInfo kdf_info = {
message_info, sizeof(ratchet_info - 1)
};
axolotl::Session alice(kdf_info);
axolotl::Session bob(kdf_info);
std::uint8_t random_bytes[] = "0123456789ABDEF0123456789ABCDEF";
axolotl::Curve25519KeyPair bob_key;
axolotl::generate_key(random_bytes, bob_key);
std::uint8_t shared_secret[] = "A secret";
{ /* Send/Receive test case */
TestCase test_case("Axolotl Send/Receive");
axolotl::Session alice(kdf_info);
axolotl::Session bob(kdf_info);
alice.initialise_as_bob(shared_secret, sizeof(shared_secret) - 1, bob_key);
bob.initialise_as_alice(shared_secret, sizeof(shared_secret) - 1, bob_key);
std::uint8_t plaintext[] = "Message";
std::size_t plaintext_length = sizeof(plaintext) - 1;
std::size_t message_length, random_length, actual_length;
std::size_t message_length, random_length, output_length;
std::size_t encrypt_length, decrypt_length;
message_length = bob.encrypt_max_output_length(plaintext_length);
random_length = bob.encrypt_random_length();
assert_equals(std::size_t(0), random_length);
actual_length = alice.decrypt_max_plaintext_length(message_length);
{
/* Bob sends Alice a message */
message_length = bob.encrypt_max_output_length(plaintext_length);
random_length = bob.encrypt_random_length();
assert_equals(std::size_t(0), random_length);
output_length = alice.decrypt_max_plaintext_length(message_length);
std::uint8_t message[message_length];
std::uint8_t actual[actual_length];
std::uint8_t output[output_length];
encrypt_length = bob.encrypt(
plaintext, plaintext_length,
......@@ -66,12 +67,108 @@ actual_length = alice.decrypt_max_plaintext_length(message_length);
decrypt_length = alice.decrypt(
message, message_length,
actual, actual_length
output, output_length
);
assert_equals(plaintext_length, decrypt_length);
assert_equals(plaintext, output, decrypt_length);
}
{
/* Alice sends Bob a message */
message_length = alice.encrypt_max_output_length(plaintext_length);
random_length = alice.encrypt_random_length();
assert_equals(std::size_t(32), random_length);
output_length = bob.decrypt_max_plaintext_length(message_length);
std::uint8_t message[message_length];
std::uint8_t output[output_length];
std::uint8_t random[] = "This is a random 32 byte string.";
encrypt_length = alice.encrypt(
plaintext, plaintext_length,
random, 32,
message, message_length
);
assert_equals(message_length, encrypt_length);
decrypt_length = bob.decrypt(
message, message_length,
output, output_length
);
assert_equals(plaintext_length, decrypt_length);
assert_equals(plaintext, actual, decrypt_length);
assert_equals(plaintext, output, decrypt_length);
}
} /* Loopback test case */
} /* Send/receive message test case */
{ /* Out of order test case */
TestCase test_case("Axolotl Out of Order");
axolotl::Session alice(kdf_info);
axolotl::Session bob(kdf_info);
alice.initialise_as_bob(shared_secret, sizeof(shared_secret) - 1, bob_key);
bob.initialise_as_alice(shared_secret, sizeof(shared_secret) - 1, bob_key);
std::uint8_t plaintext_1[] = "First Message";
std::size_t plaintext_1_length = sizeof(plaintext_1) - 1;
std::uint8_t plaintext_2[] = "Second Messsage. A bit longer than the first.";
std::size_t plaintext_2_length = sizeof(plaintext_2) - 1;
std::size_t message_1_length, message_2_length, random_length, output_length;
std::size_t encrypt_length, decrypt_length;
{
/* Alice sends Bob two messages and they arrive out of order */
message_1_length = alice.encrypt_max_output_length(plaintext_1_length);
random_length = alice.encrypt_random_length();
assert_equals(std::size_t(32), random_length);
std::uint8_t message_1[message_1_length];
std::uint8_t random[] = "This is a random 32 byte string.";
encrypt_length = alice.encrypt(
plaintext_1, plaintext_1_length,
random, 32,
message_1, message_1_length
);
assert_equals(message_1_length, encrypt_length);
message_2_length = alice.encrypt_max_output_length(plaintext_2_length);
random_length = alice.encrypt_random_length();
assert_equals(std::size_t(0), random_length);
std::uint8_t message_2[message_2_length];
encrypt_length = alice.encrypt(
plaintext_2, plaintext_2_length,
NULL, 0,
message_2, message_2_length
);
assert_equals(message_2_length, encrypt_length);
output_length = bob.decrypt_max_plaintext_length(message_2_length);
std::uint8_t output_1[output_length];
decrypt_length = bob.decrypt(
message_2, message_2_length,
output_1, output_length
);
assert_equals(plaintext_2_length, decrypt_length);
assert_equals(plaintext_2, output_1, decrypt_length);
output_length = bob.decrypt_max_plaintext_length(message_1_length);
std::uint8_t output_2[output_length];
decrypt_length = bob.decrypt(
message_1, message_1_length,
output_2, output_length
);
assert_equals(plaintext_1_length, decrypt_length);
assert_equals(plaintext_1, output_2, decrypt_length);
}
} /* Out of order test case */
}
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