OpenCT implements driver and middlerware for smart card readers. OpenCT drivers can be used via the ct-api interface, the ifdhandler interface, or its own interface/middleware. It implements drivers for several USB crypto tokens, USB smart card readers, serial smart card readers, and PCMCIA smart card readers.
Cerberus-Prox is backend software for an inexpensive, easy-to-build hardware system that implements a functional door access control system. It supports HID clock-and-data prox card readers. A MySQL database (or theoretically any JDBC) is used for data storage. RXTX is used for serial port communication.
Nightwing allows the creation of quickly deployed wireless networks without the need to make complicated configurations. With the implementation of a Mesh technology called B.A.T.M.A.N, Nightwing allows the extension of wireless networks with a simple way of adding devices that works with minimal human intervention. It has public and private connection interfaces, and the ability to filter content using OpenDNS. It is designed with security in mind, and has low hardware requirements.
SoftHSM is an implementation of a cryptographic store accessible through a PKCS#11 interface. You can use it to explore PKCS#11 without having a Hardware Security Module. It is being developed as a part of the OpenDNSSEC project. SoftHSM uses Botan for its cryptographic operations.