gpg-agent

GNU privacy guard - cryptographic agent

gpgrt-tools

gpgrt (also known as libgpg-error) defines common error values, messages, and common runtime functionality for all GnuPG components. This package contains yat2m, a Texinfo to nroff/troff converter useful for building manpages, and gpg-error, a binary for deciphering GnuPG/libgcrypt error codes.

diffutils

compare two files for differences