Popularity
1.1
Declining
Activity
0.0
Stable
2
4
3

Description

A single-file browser-based application which turns your private messages into clickable, encrypted links. Set a shared secret (password) with your friends and send "linked" PMs through unencrypted channels (email, sms, facebook etc) or paste them into documents (also in the form of QR code). Uses Java Script client-side encryption.

Programming language: JavaScript
Tags: Encryption     Pastebin     Pastebins     end-to-end-encrypted     QR Code    

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README

Linked.PM

A single-file browser-based application which turns your private messages into clickable, encrypted links.

Set a shared secret (password) with your friends and send "linked" PMs through unencrypted channels (email, sms, facebook etc) or paste them into documents (also in the form of QR code).

[Screenshot of Linked.PM application](img/screenshot.png)

Example

The QR code below contains a Linked PM:

[QRCode](img/example-qrcode.png)

The password is topsecret.

Details

Messages are encrypted using AES-CCM cipher (Advanced Encryption Standard (AES) in Counter with CBC-MAC Mode (CCM)) and 256 bits key computed from your password using 10000 rounds of PKDF2 key derivation algorithm. During each encryption additional parameters like salt and IV (initialization vector) are randomly generated, so it is unlikely that the same message with the same password will generate the same link next time you use linked.pm.

The ciphertext (with salt and IV) is stored in the hash part of URL and its processing is exclusively client-side with no participation from the server (browsers do not send this part of URL to the server).

In fact you can save linked.pm application (a single file) on your desktop and use it offline.

Build

To build the application follow these steps:

git clone https://github.com/simplito/linked-pm.git
cd linked-pm
npm install
gulp

The resulting apllication file can be found in dist/index.html.

License

The MIT License (MIT)

Copyright (c) 2016 Simplito Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


*Note that all licence references and agreements mentioned in the Linked.PM README section above are relevant to that project's source code only.