Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS https://signal.org/
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2026-10-15 18:04:44 -04:00
.github Add profile that pre-pulls test container images 2026-10-14 11:16:01 -04:00
.mvn Update Maven Wrapper 2026-07-23 16:49:05 -04:00
api-doc Generate grpc api documentation 2026-06-11 11:35:20 -05:00
integration-tests Improve assertion failure error message in recoverNumberlessUserWithWebAuthn 2026-10-13 10:37:33 -04:00
service Add startup check to verify service auth annotations 2026-10-15 18:04:44 -04:00
spam-filter@76f1947053 Update to the latest version of the spam filter 2026-10-14 11:19:28 -04:00
websocket-resources Address various deprecations 2026-09-14 10:30:24 -04:00
.editorconfig editorconfig: keep_simple_classes_in_one_line 2023-09-25 10:10:44 -05:00
.gitignore Generate grpc api documentation 2026-06-11 11:35:20 -05:00
.gitmodules Update .gitmodules 2023-01-30 15:45:41 -08:00
.java-version Update to Java 26 2026-09-09 11:21:20 -04:00
LICENSE Create separate key stores for different kinds of pre-keys 2023-06-06 17:08:26 -04:00
mvnw Update Maven Wrapper 2026-07-23 16:49:05 -04:00
mvnw.cmd Update Maven Wrapper 2026-07-23 16:49:05 -04:00
pom.xml Bump com.redis:testcontainers-redis from 2.2.4 to 3.0.0 in /service 2026-10-14 11:20:54 -04:00
README.md Add a note about the FoundationDB client library requirement to the README 2025-06-27 11:04:52 -04:00
TESTING.md Update captcha string in local testing doc 2024-10-23 09:56:41 -07:00

Signal-Server

Documentation

Looking for protocol documentation? Check out the website!

https://signal.org/docs/

How to Build

This project uses FoundationDB and requires the FoundationDB client library to be installed on the host system. With that in place, the server can be built and tested with:

$ ./mvnw clean test

Security

Security issues should be sent to security@signal.org.

Help

We cannot provide direct technical support. Get help running this software in your own environment in our unofficial community forum.

Cryptography Notice

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 https://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.

License

Copyright 2013 Signal Messenger, LLC

Licensed under the GNU AGPLv3: https://www.gnu.org/licenses/agpl-3.0.html