Hi! I'm looking for a decent free and open source application that would work similarly to "Hushmail Express message" (https://help.hushmail.com/entries/351388-I-have-received-an-encrypted-email-...) that would allow me to deposit an encrypted message on an apache web server that would be decrypted by the recipient using a shared secret (that's already established, so I don't need a key exchange mechanism). I read Tony's posts and his blog article (http://tonyarcieri.com/whats-wrong-with-webcrypto) and I'm well aware that browser based encryption is not optimal but I'm just looking for something slightly more secure than plain text email that could be used by an end user not willing to install GPG, not an NSA proof secure system. The (apache2/debian7) web server is physically under my control, I'm the only root (I hope! :-) and SSL/TLS is enabled. Thanks for your advice. cryptomars