GPG (PGP) decryption in client side web applications

Question

How would I be able to decrypt some encrypted data on the client side of a web application?

E.g.

• The data is stored encrypted on the server.
• It was encrypted using a public GPG key.
• The server sends the encrypted to the client.
• The client needs to decrypt it using their local private key.

Assumably I would be able to pass the private key to the browser and use Javascript to decrypt the data.

Answer 1

If you want to stick with JavaScript, then have a look at the LGPL library OpenPGP.js.

Answer 2

I know I'm coming a bit late to this, but for future reference, there's always an option of using crypto-browserify via Browserify.