Distributed instant messaging system for developers
Server supporting the Signal Private Messenger applications on Android
Home to the Signal Protocol and other cryptographic primitives
Telegram messenger for Android
Secure communication software
You can message and share files inside your intranet without a server.
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
Smoke: Android Crypto Chat Messenger
Graphical message and file encryption tool
A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end