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<p align="center"><img src="https://github.com/cjdelisle/cryptpad/raw/master/cryptofist.png" width="60%"></p>
Unity is Strength - Collaboration is Key

CryptPad is the **zero knowledge** realtime collaborative editor.Encryption carried out in your web browser protects the data from the server, the cloudand the NSA. This project uses the [CKEditor] Visual Editor and the [ChainPad] realtimeengine. The secret key is stored in the URL [fragment identifier] which is never sent tothe server but is available to javascript so by sharing the URL, you give authorizationto others who want to participate.
To install:
git clone <this repo> npm install npm install -g bower ## if necessary bower install ## copy config.js.dist to config.js and modify configuration (use your own mongodb instance) node ./server.js
## Security
CryptPad is *private* not *anonymous*. Privacy protects your data, anonymity protects you.As such, it is possible for a collaborator on the pad to include some silly/ugly/nasty thingsin a CryptPad such as an image which reveals your IP address when your browser automaticallyloads it or a script which plays Rick Asleys's greatest hits. It is acceptable for anyonewho does not have the key to be able to change anything in the pad or add anything, even theserver.
The server does have a certain power, it can send you evil javascript which does the wrongthing (leaks the key or the data back to the server or to someone else). This is however an[active attack] which makes it detectable. The NSA really hates doing these because they mightget caught and laughed at and humiliated in front of the whole world (again). If you're makingthe NSA mad enough for them to use an active attack against you, Great Success Highfive, now takethe battery out of your computer before it spawns Agent Smith.
Still there are other low-lives in the world so using CryptPad over HTTPS is probably a good idea.
## Contributing
We love Open Source and we love contribution. It is our intent to keep this project availableunder the AGPL license forever but in order to finance more development on this and other FOSSprojects, we also wish to sell other licenses to this software. Before making a pull request,please read and[sign the Commons Management Agreement](https://www.clahub.com/agreements/cjdelisle/cryptpad).
### License
This software is and will always be available under the GNU Affero General Public License aspublished by the Free Software Foundation, either version 3 of the License, or (at your option)any later version. If you wish to use this technology in a proprietary product, please contactsales@xwiki.com
[ChainPad]: https://github.com/xwiki-contrib/chainpad[CKEditor]: http://ckeditor.com/[fragment identifier]: https://en.wikipedia.org/wiki/Fragment_identifier[active attack]: https://en.wikipedia.org/wiki/Attack_(computing)#Types_of_attacks
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