mirror of https://git.matrix.org/git/olm.git
250 lines
8.3 KiB
C++
250 lines
8.3 KiB
C++
/* Copyright 2016 OpenMarket Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "olm/inbound_group_session.h"
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#include "olm/outbound_group_session.h"
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#include "unittest.hh"
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int main() {
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{
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TestCase test_case("Pickle outbound group session");
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size_t size = olm_outbound_group_session_size();
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uint8_t memory[size];
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OlmOutboundGroupSession *session = olm_outbound_group_session(memory);
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size_t pickle_length = olm_pickle_outbound_group_session_length(session);
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uint8_t pickle1[pickle_length];
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size_t res = olm_pickle_outbound_group_session(
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session, "secret_key", 10, pickle1, pickle_length
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);
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assert_equals(pickle_length, res);
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uint8_t pickle2[pickle_length];
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memcpy(pickle2, pickle1, pickle_length);
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uint8_t buffer2[size];
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OlmOutboundGroupSession *session2 = olm_outbound_group_session(buffer2);
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res = olm_unpickle_outbound_group_session(
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session2, "secret_key", 10, pickle2, pickle_length
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);
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assert_not_equals((size_t)-1, res);
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assert_equals(pickle_length,
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olm_pickle_outbound_group_session_length(session2));
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res = olm_pickle_outbound_group_session(
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session2, "secret_key", 10, pickle2, pickle_length
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);
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assert_equals(pickle_length, res);
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assert_equals(pickle1, pickle2, pickle_length);
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}
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{
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TestCase test_case("Pickle inbound group session");
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size_t size = olm_inbound_group_session_size();
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uint8_t memory[size];
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OlmInboundGroupSession *session = olm_inbound_group_session(memory);
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size_t pickle_length = olm_pickle_inbound_group_session_length(session);
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uint8_t pickle1[pickle_length];
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size_t res = olm_pickle_inbound_group_session(
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session, "secret_key", 10, pickle1, pickle_length
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);
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assert_equals(pickle_length, res);
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uint8_t pickle2[pickle_length];
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memcpy(pickle2, pickle1, pickle_length);
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uint8_t buffer2[size];
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OlmInboundGroupSession *session2 = olm_inbound_group_session(buffer2);
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res = olm_unpickle_inbound_group_session(
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session2, "secret_key", 10, pickle2, pickle_length
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);
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assert_not_equals((size_t)-1, res);
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assert_equals(pickle_length,
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olm_pickle_inbound_group_session_length(session2));
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res = olm_pickle_inbound_group_session(
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session2, "secret_key", 10, pickle2, pickle_length
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);
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assert_equals(pickle1, pickle2, pickle_length);
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}
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{
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TestCase test_case("Group message send/receive");
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uint8_t random_bytes[] =
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"0123456789ABDEF0123456789ABCDEF"
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"0123456789ABDEF0123456789ABCDEF"
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"0123456789ABDEF0123456789ABCDEF"
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"0123456789ABDEF0123456789ABCDEF"
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"0123456789ABDEF0123456789ABCDEF"
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"0123456789ABDEF0123456789ABCDEF";
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/* build the outbound session */
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size_t size = olm_outbound_group_session_size();
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uint8_t memory[size];
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OlmOutboundGroupSession *session = olm_outbound_group_session(memory);
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assert_equals((size_t)160,
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olm_init_outbound_group_session_random_length(session));
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size_t res = olm_init_outbound_group_session(
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session, random_bytes, sizeof(random_bytes));
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assert_equals((size_t)0, res);
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assert_equals(0U, olm_outbound_group_session_message_index(session));
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size_t session_key_len = olm_outbound_group_session_key_length(session);
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uint8_t session_key[session_key_len];
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olm_outbound_group_session_key(session, session_key, session_key_len);
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/* encode the message */
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uint8_t plaintext[] = "Message";
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size_t plaintext_length = sizeof(plaintext) - 1;
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size_t msglen = olm_group_encrypt_message_length(
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session, plaintext_length);
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uint8_t msg[msglen];
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res = olm_group_encrypt(session, plaintext, plaintext_length,
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msg, msglen);
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assert_equals(msglen, res);
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assert_equals(1U, olm_outbound_group_session_message_index(session));
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/* build the inbound session */
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size = olm_inbound_group_session_size();
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uint8_t inbound_session_memory[size];
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OlmInboundGroupSession *inbound_session =
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olm_inbound_group_session(inbound_session_memory);
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res = olm_init_inbound_group_session(
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inbound_session, session_key, session_key_len);
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assert_equals((size_t)0, res);
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/* Check the session ids */
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size_t out_session_id_len = olm_outbound_group_session_id_length(session);
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uint8_t out_session_id[out_session_id_len];
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assert_equals(out_session_id_len, olm_outbound_group_session_id(
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session, out_session_id, out_session_id_len
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));
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size_t in_session_id_len = olm_inbound_group_session_id_length(
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inbound_session
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);
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uint8_t in_session_id[in_session_id_len];
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assert_equals(in_session_id_len, olm_inbound_group_session_id(
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inbound_session, in_session_id, in_session_id_len
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));
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assert_equals(in_session_id_len, out_session_id_len);
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assert_equals(out_session_id, in_session_id, in_session_id_len);
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/* decode the message */
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/* olm_group_decrypt_max_plaintext_length destroys the input so we have to
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copy it. */
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uint8_t msgcopy[msglen];
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memcpy(msgcopy, msg, msglen);
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size = olm_group_decrypt_max_plaintext_length(inbound_session, msgcopy, msglen);
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uint8_t plaintext_buf[size];
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uint32_t message_index;
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res = olm_group_decrypt(inbound_session, msg, msglen,
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plaintext_buf, size, &message_index);
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assert_equals(plaintext_length, res);
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assert_equals(plaintext, plaintext_buf, res);
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assert_equals(message_index, uint32_t(0));
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}
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{
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TestCase test_case("Invalid signature group message");
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uint8_t plaintext[] = "Message";
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size_t plaintext_length = sizeof(plaintext) - 1;
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uint8_t session_key[] =
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"AgAAAAAwMTIzNDU2Nzg5QUJERUYwMTIzNDU2Nzg5QUJDREVGMDEyMzQ1Njc4OUFCREVGM"
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"DEyMzQ1Njc4OUFCQ0RFRjAxMjM0NTY3ODlBQkRFRjAxMjM0NTY3ODlBQkNERUYwMTIzND"
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"U2Nzg5QUJERUYwMTIzNDU2Nzg5QUJDREVGMDEyMztqJ7zOtqQtYqOo0CpvDXNlMhV3HeJ"
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"DpjrASKGLWdop4lx1cSN3Xv1TgfLPW8rhGiW+hHiMxd36nRuxscNv9k4oJA/KP+o0mi1w"
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"v44StrEJ1wwx9WZHBUIWkQbaBSuBDw";
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uint8_t message[] =
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"AwgAEhAcbh6UpbByoyZxufQ+h2B+8XHMjhR69G8nP4pNZGl/3QMgrzCZPmP+F2aPLyKPz"
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"xRPBMUkeXRJ6Iqm5NeOdx2eERgTW7P20CM+lL3Xpk+ZUOOPvsSQNaAL";
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size_t msglen = sizeof(message)-1;
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/* build the inbound session */
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size_t size = olm_inbound_group_session_size();
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uint8_t inbound_session_memory[size];
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OlmInboundGroupSession *inbound_session =
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olm_inbound_group_session(inbound_session_memory);
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size_t res = olm_init_inbound_group_session(
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inbound_session, session_key, sizeof(session_key)-1
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);
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assert_equals((size_t)0, res);
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/* decode the message */
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/* olm_group_decrypt_max_plaintext_length destroys the input so we have to
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copy it. */
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uint8_t msgcopy[msglen];
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memcpy(msgcopy, message, msglen);
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size = olm_group_decrypt_max_plaintext_length(
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inbound_session, msgcopy, msglen
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);
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memcpy(msgcopy, message, msglen);
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uint8_t plaintext_buf[size];
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uint32_t message_index;
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res = olm_group_decrypt(
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inbound_session, msgcopy, msglen, plaintext_buf, size, &message_index
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);
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assert_equals(message_index, uint32_t(0));
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assert_equals(plaintext_length, res);
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assert_equals(plaintext, plaintext_buf, res);
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/* now twiddle the signature */
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message[msglen-1] = 'E';
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memcpy(msgcopy, message, msglen);
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assert_equals(
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size,
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olm_group_decrypt_max_plaintext_length(
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inbound_session, msgcopy, msglen
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)
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);
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memcpy(msgcopy, message, msglen);
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res = olm_group_decrypt(
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inbound_session, msgcopy, msglen,
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plaintext_buf, size, &message_index
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);
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assert_equals((size_t)-1, res);
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assert_equals(
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std::string("BAD_SIGNATURE"),
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std::string(olm_inbound_group_session_last_error(inbound_session))
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);
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}
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}
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