708fddd747
Putting the session_id inside the packed message body makes it hard to extract so that we can decide which session to use. We don't think there is any advantage to having thes sesion_id protected by the HMACs, so we're going to move it to the JSON framing.
111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
/* Copyright 2015-2016 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/message.hh"
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#include "unittest.hh"
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int main() {
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std::uint8_t message1[36] = "\x03\x10\x01\n\nratchetkey\"\nciphertexthmacsha2";
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std::uint8_t message2[36] = "\x03\n\nratchetkey\x10\x01\"\nciphertexthmacsha2";
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std::uint8_t ratchetkey[11] = "ratchetkey";
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std::uint8_t ciphertext[11] = "ciphertext";
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std::uint8_t hmacsha2[9] = "hmacsha2";
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{ /* Message decode test */
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TestCase test_case("Message decode test");
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olm::MessageReader reader;
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olm::decode_message(reader, message1, 35, 8);
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assert_equals(std::uint8_t(3), reader.version);
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assert_equals(true, reader.has_counter);
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assert_equals(std::uint32_t(1), reader.counter);
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assert_equals(std::size_t(10), reader.ratchet_key_length);
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assert_equals(std::size_t(10), reader.ciphertext_length);
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assert_equals(ratchetkey, reader.ratchet_key, 10);
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assert_equals(ciphertext, reader.ciphertext, 10);
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} /* Message decode test */
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{ /* Message encode test */
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TestCase test_case("Message encode test");
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std::size_t length = olm::encode_message_length(1, 10, 10, 8);
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assert_equals(std::size_t(35), length);
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std::uint8_t output[length];
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olm::MessageWriter writer;
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olm::encode_message(writer, 3, 1, 10, 10, output);
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std::memcpy(writer.ratchet_key, ratchetkey, 10);
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std::memcpy(writer.ciphertext, ciphertext, 10);
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std::memcpy(output + length - 8, hmacsha2, 8);
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assert_equals(message2, output, 35);
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} /* Message encode test */
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{ /* group message encode test */
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TestCase test_case("Group message encode test");
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size_t length = _olm_encode_group_message_length(200, 10, 8);
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size_t expected_length = 1 + (1+2) + (2+10) + 8;
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assert_equals(expected_length, length);
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uint8_t output[50];
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uint8_t *ciphertext_ptr;
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_olm_encode_group_message(
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3,
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200, // counter
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10, // ciphertext length
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output,
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&ciphertext_ptr
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);
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uint8_t expected[] =
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"\x03"
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"\x08\xC8\x01"
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"\x12\x0A";
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assert_equals(expected, output, sizeof(expected)-1);
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assert_equals(output+sizeof(expected)-1, ciphertext_ptr);
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} /* group message encode test */
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{
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TestCase test_case("Group message decode test");
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struct _OlmDecodeGroupMessageResults results;
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std::uint8_t message[] =
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"\x03"
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"\x08\xC8\x01"
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"\x12\x0A" "ciphertext"
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"hmacsha2";
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_olm_decode_group_message(message, sizeof(message)-1, 8, &results);
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assert_equals(std::uint8_t(3), results.version);
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assert_equals(1, results.has_message_index);
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assert_equals(std::uint32_t(200), results.message_index);
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assert_equals(std::size_t(10), results.ciphertext_length);
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assert_equals(ciphertext, results.ciphertext, 10);
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} /* group message decode test */
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}
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