gnucap-uf is not an official debian package. We are working on it. Here we provide instructions on how to create your own packages.
Some packages are required to build a gnucap-uf package. For example, execute (as a privileges user) the following.
apt-get install build-essential libatlas-dev libreadline-dev fakeroot debhelperYou may then retrieve the source package and build.
dget -x -u http://www.em.cs.uni-frankfurt.de/gnucap/gnucap-uf/gnucap-uf_current.dsc cd gnucap-uf_* dpkg-buildpackage -rfakerootThis will create several *.deb archives, that you may now install (as a privileges user) using dpkg -i.