gui-apt-key is a graphical front-end to the
apt-key utility (gak). It provides an easy to use
interface for maintaining digital keys for APT,
which are required to authenticate Debian archives
and prevent malicious packages for creeping in.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.