[liberationtech] pgp message encryption and decrypion using just a browser

[Frank Corrigan]

For some time I have been investigating the availability of web pages
that provide easy to use password creation and message encryption
functions, which only depend upon web browsers inbuilt javascript
capabilities and can therefore be downloaded and used off line. And
works across all common OSs and browsers.

Examples are 
https://www.pwdhash.com 
as one of many options for password creation 

and http://www.hanewin.net/encrypt/PGcrypt.htm 
to encrypt messages using a recipients pgp Public key.

The help I am requesting is whether anyone knows of an online resource,
that meets the above criteria, that can not only encrypt text using a
pgp Public key but also has a facility to decrypt a pgp message with the
recipients Private key? 

I am aware of FireGPG:
http://getfiregpg.org/s/home

which is excellent, though sadly now discontinued, but it is tied to
Fire Fox through an add-on and it's functions are dependent upon a local
install of GPG.
 
Thanks
Frank