miracl : Big number cryptography library ( http://www.shamus.ie )
yapet : A curses (text) based password encryption tool ( http://www.guengel.ch/myapps/yapet/ )
yyyRSA : Encrypting and deciphering of messages with the RSA asymmetrical encryption algorithm ( http://www.erikyyy.de/yyyRSA/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a sunrise
For Paludis use this rsync : rsync://gentoo.zugaina.org/sunrise-portage
If you have a problem : ycarus(-at-)zugaina.org