Ciphered and Authenticated Network Services Access System (CANSAS), in its 2.0 incarnation, provides a lightweight authentication mechanism to users connected to an open wireless network, and is usuall deployed as a WiFi hotspot running the GNU/Linux operating system.
The second release of the system is more focused on wireless network access, providing distributed solution for authentication which can be embedded on resource-limited hotspots, while authentication is done against a centralized service.
CANSAS 2.0 reuses the WifiDog gateway daemon and uses its own authentication and captive portal implementation, named WRATH.
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.