DOMCrypt Demo

DOMCrypt is a Firefox extension that adds 'window.mozCipher' to each browser window. With 'mozCipher', you can generate a public and private key pair, encrypt data and decrypt data. All of the encryption operations are handled by low-level NSS libraries written in C. This is not a javascript-in-content solution. (NSS handles all of the SSL operations in many modern browsers.)

Try out the demo:

• Firefox 4 Firefox 4 or nightly required
• Install the extension and restart your browser.
• Load this page and follow the next 3 steps:

1. Generate the key pair

Public key

Symmetric Crypto Test

2. Encrypt the message

This is a plaintext message. Encrypt

Encrypted text

3. Decrypt the cipher text

Decrypted text

Decrypt

Run the Addressbook Demo

Run the Sign and Verify Demo

Latest Developments

• JSON data persistence for a user's default encryption credentials - not accessible to the DOM or content JS (only the Public Key is, of course.)

Next steps

• Data persistence via IndexedDB, JSON, localStorage, Sync, new APIs
• Address Book server to make public key discovery trivial
• Messaging (secure 'email' and 'status' feeds) client and server
• Evangelism: get this functionality into browsers