Most digital cameras produce EXIF files, which are
JPEG files with extra tags that contain
information about the image. The EXIF library
allows you to parse an EXIF file and read the data
from those tags.
High Level Firewall Language permits writing firewalling rules using a high-level language, and transforms them into rules for real software like ipfilter, ipchains, or Cisco firewalls.
A tool for securing DNS communications between a client and a DNS resolver.
A polyhedral extraction tool (PET).