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51 lines
2.3 KiB
Markdown
51 lines
2.3 KiB
Markdown
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Unity is Strength - Collaboration is Key
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CryptPad is the **zero knowledge** realtime collaborative editor.
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Encryption carried out in your web browser protects the data from the server, the cloud
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and the NSA. This project uses the [CKEditor] Visual Editor and the [ChainPad] realtime
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engine. The secret key is stored in the URL [fragment identifier] which is never sent to
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the server but is available to javascript so by sharing the URL, you give authorization
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to others who want to participate.
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To install:
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git clone <this repo>
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npm install
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npm install -g bower ## if necessary
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bower install
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## copy config.js.dist to config.js and modify configuration (use your own mongodb instance)
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node ./server.js
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## Security
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CryptPad is *private* not *anonymous*. Privacy protects your data, anonymity protects you.
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As such, it is possible for a collaborator on the pad to include some silly/ugly/nasty things
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in a CryptPad such as an image which reveals your IP address when your browser automatically
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loads it or a script which plays Rick Asleys's greatest hits. It is acceptable for anyone
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who does not have the key to be able to change anything in the pad or add anything, even the
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server.
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The server does have a certain power, it can send you evil javascript which does the wrong
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thing (leaks the key or the data back to the server or to someone else). This is however an
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[active attack] which makes it detectable. The NSA really hates doing these because they might
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get caught and laughed at and humiliated in front of the whole world (again). If you're making
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the NSA mad enough for them to use an active attack against you, Great Success Highfive, now take
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the battery out of your computer before it spawns Agent Smith.
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Still there are other low-lives in the world so using CryptPad over HTTPS is probably a good idea.
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[ChainPad]: https://github.com/xwiki-contrib/chainpad
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[CKEditor]: http://ckeditor.com/
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[fragment identifier]: https://en.wikipedia.org/wiki/Fragment_identifier
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[active attack]: https://en.wikipedia.org/wiki/Attack_(computing)#Types_of_attacks
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