cosign is a Web single sign on system that allows users to authenticate once per session and access any protected Web resources at the institution. If used, passwords are sent only to a single, central URL. Sessions have both idle and hard timeouts, and users can logout of all protected services by visiting a single URL. The use of public key cryptography ensures that a compromise of a protected Web server has no impact on the security of other participating servers.
The Kolmogorov project provides tools for machine perception and tutorials for machine learning, machine perception, and statistics. It supports fast face detection in images and information on Hidden Markov models, Gabor filters, Multivariate Logistic Regression, and Stochastic Differential Equations. It includes MPISearch, a library for detecting objects in images very quickly (real-time in some cases).
aptg(2) (a place to go) is a Web-based email client written in PHP, using localhost connections to a running IMAP4 server. It is designed to work with Postfix. Authentication is against a MySQL database as used by pam_mysql (username + password) or by using one of the virtual email addresses (also stored in the MySQL database) and that password. A powerful addressbook is also included. It uses its own session handling system with one-time session ids. The development version has experimental GnuPG support.
tinydyndns is a simple but powerful dynamic DNS solution that uses djbdns. It cooperates with the djbdns package to publish dynamic IP addresses authenticated through POP connections. On successfully authenticated POP connections, the tinydyndns-update program manipulates tinydns' constant database "data.cdb" directly without rebuilding it; this makes the dynamic DNS solution use very few system resources. Using a POP service for authentication saves the work for installing special client software, since POP clients are available for every common network-aware operating system. To provide the DNS and POP service, tinydyndns cooperates with djbdns, qmail, and cvm.
msulogin is the single-user mode login program used to force the console user to login under a root account before a shell is started. Unlike other implementations of sulogin, this one supports having multiple root accounts on a system. msulogin has been developed as a part of Openwall GNU/*/Linux and is being made available separately primarily for use by other distributions. Currently, msulogin supports only systems with getspnam(3).
Tclog is a desktop Weblog application written in Tcl/Tk. Unlike most Weblog tools, it does not require server-side scripts. Instead, it uploads entries via FTP. It features RSS 1.0, HTML templates, TrackBack, Wiki-like formatting rules, indexes for the Namazu search engine, and more.