libsignal-client is an implementation of the Signal client protocol in Rust.
Work in progress. Subject to change without notice, use outside Signal not yet recommended.
To build anything in this repository you must have Rust installed. The build currently uses a specific version of the Rust nightly compiler, which will be downloaded automatically by cargo. To build and test the basic protocol libraries:
$ cargo build
...
$ cargo test
...To build for Android you must install several additional packages including a JDK, the Android NDK/SDK, and add the Android targets to the Rust compiler, using
rustup target add armv7-linux-androideabi aarch64-linux-android i686-linux-android x86_64-linux-android
as well as the Cargo NDK tool using
cargo install --version=1.0.0 cargo-ndk
To build the Java/Android jar and aar, and run the tests:
$ cd java
$ ./gradlew testAlternately, a build system using Docker is available:
$ cd java
$ make java_testTo learn about the Swift build process see swift/README.md
Signal does accept external contributions to this project. However unless the change is simple and easily understood, for example fixing a bug or portability issue, adding a new test, or improving performance, first open an issue to discuss your intended change as not all changes can be accepted.
Signing a CLA (Contributor License Agreement) is required for all contributions.
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
Copyright 2020 Signal Messenger, LLC
Licensed under the AGPLv3: https://www.gnu.org/licenses/agpl-3.0.html