blackbox : Safely store secrets in a VCS repo (i.e. Git or Mercurial) ( https://github.com/StackExchange/blackbox.git )
seccure : asymmetric algorithms based on elliptic curve cryptography (ECC) ( http://point-at-infinity.org/seccure/ )
ssss : an implementation of Shamir's secret sharing scheme ( http://point-at-infinity.org/ssss/ )
transcrypt : transparent encryption of sensitive files stored in a Git repository ( https://github.com/elasticdog/transcrypt.git )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a jmesmon
For Paludis use this rsync : rsync://gentoo.zugaina.org/jmesmon-portage
If you have a problem : ycarus(-at-)zugaina.org