Speak Securely

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  Encrypted version without the extension

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  Unencrypted version with extension

Inspiration

Our motivation is to give users back their privacy

What it does

• Chrome extension: Uses PGP encryption to encrypt all messages when they are being sent (using the recipient's public key). It also decrypts all the received messages using the user's own private key.

• Public key storage system: Stores user's public key, name, email address and phone number. It acts as a directory to look up your friend's public keys.

How we built it

• Chrome extension uses OpenPGPJS to encrypt and decrypt messages. It is able to fetch your friend's public keys from our storage directory if its not found on your local storage.

• Storage directory uses NodeJS's express web server along with a MySQL database

Challenges we ran into

• Using OpenPGP to encrypt and decrypt message.
• Listening for a new message on WhatsApp
• Using public key cryptography. Its more complex than we thought.

Accomplishments that we're proud of

• Successfully encrypt and decrypt messages as required on WhatsApp Web

What we learned

• Learnt a lot about public key cryptography

What's next for Speak Securely

• Use this extension to be able to encrypt Facebook messages.

Built With

• chrome
• css3
• database
• express.js
• html5
• javascript
• mysql
• node.js
• openpgpjs
• pgp