Cryptsetup provides an interface for configuring encryption on block devices (such as /home or swap partitions), using the Linux kernel device mapper target dm-crypt. It features integrated Linux Unified Key Setup (LUKS) support.

This package provides a module for MCrypt functions in PHP scripts.

twm is a window manager for the X Window System. It provides title bars, shaped windows, several forms of icon management, user-defined macro functions, click-to-type and pointer-driven keyboard focus, and user-specified key and pointer button bindings.

NetHack is a wonderfully silly, yet quite addictive, Dungeons & Dragons-style adventure game. You play a character from one of many classes (such as wizard, ranger, or tourist), fighting your way down to retrieve the Amulet of Yendor (try saying THAT one backwards!) for your god. On the way, you might encounter a quantum mechanic or two, or perhaps King Arthur, or - if you're REALLY lucky - the Ravenous Bugblatter Beast of Traal.

OpenSC provides a set of libraries and utilities to access smart cards. It mainly focuses on cards that support cryptographic operations. It facilitates their use in security applications such as mail encryption, authentication, and digital signature. OpenSC implements the PKCS#11 API. Applications supporting this API, such as Iceweasel and Icedove, can use it. OpenSC implements the PKCS#15 standard and aims to be compatible with all software that does so as well.

unpaper is a post-processing tool for scanned sheets of paper, especially for book pages that have been scanned from previously created photocopies.