Normally I would have to import that key to my keyring or save it into a file and use gnupg to visualize it (as it is described in this Stack Overflow answers). To avoid this hassle I just created a simple page with a text area where you can paste the public key and it will display some basic information about it.
Gpg4usb is a very easy to use and small portable editor to encrypt and decrypt any text-message or -file you want. Our aim is, to give anyone the possibility to send and receive secure encrypted messages anywhere - on any computer out there, no matter if Microsoft Windows (TM) or Linux is running on it. Gpg4usb-0.3.3 fixes a bug which made private key export impossible, when gpg4usb was started from a path containing non ascii characters. This release contains greek translation, thanks a lot to George. The gpg.conf was modified according to the apache gnupg recommondations to avoid the use of sha1.