Paranormal is an extremely customizable visualization plugin for XMMS, based (conceptually) on Winamp's AVS plugin. Its goal is to be as flexible as possible by providing a number of 'actuators' that perform various tasks involved in generating an image. These actuators can then be combined to create a nearly unlimited number of effects.
The bastard disassembler is a disassembler written for x86 ELF targets on Linux. Other file formats/CPUs can be 'plugged in'. It has a command-line interface and is meant to be used as a backend or engine. Support for controlling the disassembler via pipes is provided. Note that this disassembler does not rely on libopcodes to do its disassembly. Rather, the 'libi386' plugin is a standard .so that can be reused by other projects.
ROME is a modular, multitasking, embedded operating system which has been developed and used for multiple research projects within the Computer & Communications Research Laboratory (CCRL) of NEC USA, Inc. in Princeton, NJ. ROME was designed to manage high speed data streams within a multimedia environment. The system splits functionality over multiple processes which are communicating via a low overhead messaging mechanism. ROME supports TCP/IP networking, DOS FS, and provides a GUI toolkit. ROME systems can be built and customized using the ROME Target Builder, a graphical cross platform configuration tool.
Botan is a crypto library written in C++. It provides a variety of cryptographic algorithms, including common ones such as AES, MD5, SHA, HMAC, RSA, Diffie-Hellman, DSA, and ECDSA, as well as many others that are more obscure or specialized. It also offers SSL/TLS (client and server), X.509v3 certificates and CRLs, and PKCS #10 certificate requests. A message processing system that uses a filter/pipeline metaphor allows for many common cryptographic tasks to be completed with just a few lines of code. Assembly and SIMD optimizations for common CPUs offers speedups for critical algorithms like AES and SHA-1.
ImSafe (Immune Security For your Enterprise) is a host-based intrusion detection tool. After a learning phase, it is able to detect changes in processes behavior, to detect buffer overflows, etc. It is implemented through a device driver (as a kernel patch) for the Linux kernel, but can also be run on other UNIX systems by using a "sensor" built upon strace.