Interconverts PGP hex and keyword format public keys.
See http://mindprod.com/jgloss/pgp.html to see how it works.
You can run it as as Applet at http://mindprod.com/applet/pgpkeywords.html
or run it standalone with:
java.exe -jar pgpkeywords.jar
Why the willow tree logo?  "Willow" is one of the PGP even keywords.