bhanditz / cryptocat

Web Instant Messaging App With Accessible Encryption

#Cryptocat

Web Instant Messaging App With Accessible Encryption.

Experimental software: Don't trust with your life! Peer review appreciated.

Description

Cryptocat is a browser-based XMPP client that provides multi-user (and private) instant messaging inside chatrooms. It uses the OTR protocol for encrypted two-party chat and the (upcoming) mpOTR protocol for encrypted multi-party chat.

Platforms

Google Chrome: src/chrome/

Run make chrome to build a Google Chrome-loadable .zip extension (or just .zip the directory.)
Also available from the Chrome Web Store.

Mozilla Firefox: src/firefox/

Run make firefox to build a Mozilla Firefox-loadable .xpi extension (or just .zip the directory and change the extension to .xpi.)
Also available from Mozilla Firefox Addons.

Apple Safari: src/cryptocat.safariplugin/

Apple's model makes an automated build process difficult.
Also available from Cryptocat.

Compatibility Status

  -----------------------------------------
 |             Windows   Mac      Linux    |
 |-----------------------------------------|
 | Chrome  |   Yes       Yes      Yes      |
 |---------                                |
 | Firefox |   Yes       Yes      Yes      |
 |---------                                |
 | Safari  |   Yes       Yes               |
 |---------                                |
  -----------------------------------------

Goals

• XMPP [DONE] | Discussion, Library
• OTR [DONE] | Discussion, Library
• mpOTR | Discussion, Spec in progress. Currently relying on the Cryptocat Multiparty Protocol

Documentation & Wiki

• Multiparty Protocol Specification
• Server Deployment Instructions
• Threat Model
• Design and Functionality Overview
• Architecture and Lifecycle

Discussion & Blog

• Issue tracker
• Development Blog

Builds

• Builds are available in release/.

Changelog

Please review CHANGELOG.md for an account of the changes made with each version update.

License

Cryptocat is released under the GNU Affero General Public License (AGPL3):

Copyright (C) 2011 - 2013 Nadim Kobeissi <[email protected]>  

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.  

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.  

You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

The full license text is included in LICENSE.txt.

Contributors

• Lead Developer: Nadim Kobeissi
• Development Contributors: Jacob Appelbaum, Joseph Bonneau, Griffin Boyce, Arlo Breault, Dmitry Chestnykh, David Dahl, Daniel "koolfy" Faucon, Arturo Filasto, Tom Lowenthal, Fabio Pietrosanti
• Multimedia Contributors: A.J. Korkidakis, P.J. Onori, Rich Vreeland

With a warm thanks to the hard-working contributors who wish to remain anonymous.