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The WiKID Strong Authentication System is a public-key based two-factor authentication system. It is a flexible, extensible, and secure alternative to tokens, certs and passwords. Application & API support exists for Java, ASP, PHP, Ruby, OpenVPN, TACACS+, etc.
Read our eGuide on how to setup your network with two-factor authentication: http://www.wikidsystems.com/learn-more/two-factor-authentication-white-papers
Authentication, Access Control, and Single Sign-On
DACS,a light-weight single sign-on and role-based security system for Apache or server-based software, provides comprehensive authentication capabilities, and powerful, transparent rule-based authorization checking for any web service or CGI program.
The latest release is DACS 1.5.1 (26-Oct-2025)
It is not available here!
Get it at https://dacs.dss.ca/download.html
An open source project originally designed to provide the University of Michigan with a secure single sign-on web authentication system. Cosign is part of the National Science Foundation Middleware Initiative (NMI) EDIT software release.
CAILogin (Counter AI Login) is an image-based user verification program for web-page logins. It's written in plain C with no special dependencies, and hence it's very suitable for embedded systems which lack "big" interpreted languages, such as PHP.
A configurable system for synchronising multiple passwords of different types. Password quality can be imposed by using histories, cracklib based tests, and forcing certain passwords to be distinct. CGI and PAM modules exist for tight integration.
raddump interprets captured RADIUS packets to print a timestamp, packet length, RADIUS packet type, source and destination hosts and ports, and included attribute names and values for each packet.
SMSec is a free , open source, GPLed implementation of two-factor authentication via SMS (Short Message Service). It uses SMSD to "talk" to GSM modems, provides a flexible XMLRPC web-service for web-developers integrate SMSec into their web-apps.
UnityCA is a Certificate Authority "front end" based on the Community-Oriented CA (COCA) model, which was primarily developed for non-profit "free CAs." Organizational and end-user interfaces provide trusted web management of the installed CA (eg ElyCA).
A modular, flexible and extensible Identity and Access Management system for integrated login, access and profile management across disparate security domains. Supports Apache, PAM, Webcrossing, XMLRPC and SOAP from C, Perl, and Java with more to come.