97 lines
4.1 KiB
Markdown
97 lines
4.1 KiB
Markdown
<div align="center">
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<img src="https://otmp.4rs.nl/otmp_logo.png" alt="OTMP Logo" width="100"
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height="100">
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# Oxidetalis
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An open-source [OxideTalis Messaging Protocol][`OTMP`] (OTMP) homeserver
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implementation written in Rust.
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<!-- [](https://git.4rs.nl/oxidetalis/oxidetalis)
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[](https://git.4rs.nl/oxidetalis/oxidetalis) -->
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[](https://www.gnu.org/licenses/agpl-3.0.html)
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</div>
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> [!WARNING]
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> The project is still in very early development and is not ready for
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> any kind of use yet, the protocol is not finalized and the server is not
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> feature complete, also not all protocol features are implemented yet.
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## About
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[`OTMP`] is a federated chat protocol that aims to be a secure and
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privacy-respecting alternative to existing chat protocols, [`OTMP`] does not
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rely on a central server, but instead uses a federated network of servers to
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deliver messages. When you send a message to a friend, you will connect to your
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friend's server and send the message directly to them. This way, your messages
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are not stored on a central server, and only you and your friend can read them.
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## Key Features
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- **Federated**: No central server, messages are sent directly to the recipient server by you.
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- **End-to-End Encryption**: Messages are encrypted on the client and decrypted
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on the client.
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- **Self-Hosted**: You can host your own server and have full control over your
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data.
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- **Privacy-Respecting**: No tracking, no ads, no data mining, no
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email/usernames/passwords required.
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- **Secure**: Messages are encrypted and signed, and the [protocol is designed to
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be secure][`OTMP`].
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- **Lightweight**: Simple protocol, easy to implement, easy to use. No bloat.
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## Protocol non-goals
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- Group chats
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- Voice/video calls
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## How to authenticate without usernames and passwords
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[`OTMP`] uses a different authroization mechanism than most chat protocols.
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Instead of using usernames and passwords, [`OTMP`] uses public/private key pairs
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to authenticate users. When you create an account, you generate a key pair on
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your device, and the public key is sent to the server. When you sent a request
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to the server, you sign the request with shared secret key between you and the
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server. This way, the server can verify that the request is coming from you and
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authroize the request.
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## E2EE, how does it work?
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[`OTMP`] key pairs are used for more than just authroization, they are also used
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for end-to-end encryption. When you send a message to a friend, you encrypt the
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message with shared secret key, the shared secret key is generated by
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diffie-hellman key exchange using your private key and your friend's public key.
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This way, only you and your friend can read the message, even the server can't
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read it.
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## Running the server
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> [!NOTE]
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> You must update `OXIDETALIS_CONFIG` in the `docker-compose.yml` file to point
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> to the correct configuration file. And you must update the configuration file.
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To run the server, you need to have docker and docker-compose installed on your
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system. You can run the server by running the following command:
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```sh
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docker-compose up -d
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```
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## Contributing
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For information on how to contribute to the project, please see the
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[CONTRIBUTING.md](./CONTRIBUTING.md) file.
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## Licenses
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The project is split into multiple crates, each with its own license:
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* [`crates/oxidetalis`]: Homeserver implementation, licensed under the GNU
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AGPLv3.
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* [`crates/oxidetalis_config`]: Configuration library, licensed under the MIT
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license.
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* [`crates/oxidetalis_core`]: The core library, licensed under the MIT license.
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* [`crates/migrations`]: Database migrations, licensed under the MIT license.
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* [`crates/entities`]: Database entities, licensed under the MIT license.
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[`OTMP`]: https://otmp.4rs.nl
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[`crates/oxidetalis`]: ./crates/oxidetalis
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[`crates/oxidetalis_config`]: ./crates/oxidetalis_config
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[`crates/oxidetalis_core`]: ./crates/oxidetalis_core
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[`crates/migrations`]: ./crates/migrations
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[`crates/entities`]: ./crates/entities
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