BioPassword  
   A software-based technology that learns and verifies unique typing patterns. Includes an introduction to biometrics and keyboard dynamics.
   http://www.biopassword.com/

Open Systems Management  
   Password synchronization and role based access control across UNIX, Windows NT and resident applications. Site contains FAQs.
   http://www.osmcorp.com/

Secure Remote Passwords  
   Software integrates into existing networked applications. Secure telnet and FTP available. Open source. User and technical documentation as well as source code.
   http://srp.stanford.edu/

Blockade Systems  
   Password synchronization and enterprise-wide access control management software. Includes a return-on-investment calculator.
   http://www.blockade.com/

Unisys  
   Makers of several related products. Site includes rationale as well as comprehensive usage information.
   http://www.unisys.com/

Ankari  
   Offers authentication, network security software, and IT security solutions. Includes white papers and introductory material.
   http://www.ankari.com/

RSA Security  
   Products include token-based one time password systems and single sign on systems. Site contains information on security.
   http://www.rsasecurity.com/

Theory of Identification and Authentication  
   History and development of mechanisms and techniques.
   http://www.geocities.com/SiliconValley/Garage/3323/cspage.html

Vasco  
   Makers of both software and hardware systems. Demos, case studies and product information.
   http://www.vasco.com/

SecureUser.net  
   Providers of tools to e-commerce developers. Site includes a technology explanation and case studies.
   http://www.SecureUser.net

IIS User Authentication Tutorial  
   Information on various methods for WWW password protection using Internet Information Server (IIS). Text-based tutorial with some screenshots.
   http://www.authenticationtutorial.com/

iisPROTECT  
   Functions with Internet Information Server to secure web sites. Includes live demo.
   http://www.iisPROTECT.com/

iDEX Systems, Inc.  
   Java-powered iButton based personal identity management security services and digital certificate authentication for secure logon, secure messaging, and digital signatures.
   http://www.idexsys.com

Flicks Software  
   Software password protects web content (Windows NT / 2000). Free trial downloads available.
   http://www.flicks.com

Remote User Authentication in Libraries  
   Comprehensive collection of resources for libraries and universities. Includes links to software and some links of interest to non-librarians.
   http://library.smc.edu/rpa.htm

I/O Software  
   Provider of software solutions, including biometric solutions. Site includes product descriptions and technology licensing terms.
   http://www.iosoftware.com/

A Proactive Password Checker  
   Paper by M. Bishop, 1991. The author describes a technique, and a mechanism, to allow users to select passwords which to them are easy to remember but to others would be very difficult to guess. [Postscript]
   http://seclab.cs.ucdavis.edu/papers/mb91c.ps

Password Management  
   Paper by M. Bishop, 1991. Discusses problems of password selection and password management, and identifies relevant techniques. [PDF]
   http://seclab.cs.ucdavis.edu/papers/pdfs/mb-91.pdf

Dos and Don'ts of Client Authentication on the Web  
   Paper by Kevin Fu, Emil Sit, Kendra Smith, and Nick Feamster. In the Proceedings of the 10th USENIX Security Symposium, Washington, D.C., August 2001. [PDF]
   http://www.pdos.lcs.mit.edu/papers/webauth:sec10.pdf

M-Tech Information Technology, Inc.  
   ID-Synch, identity management software for managing user administration processes. Product information, customers, press releases and contact details.
   http://mtechit.com/

NMA, Inc.  
   ZSentry two-factor authentication solution. Product information, white papers and contact details.
   http://www.nma.com/

DigiGAN, Inc  
   Secure network gateway, web server and one time password solutions. Product information and company profile.
   http://www.digigan.com/

Finally Software  
   Enterprise security solutions based on PKI and Kerberos. Also offer a secure terminal emulator for connecting to Unix servers from Windows. Product information and downloadable evaluation software.
   http://www.finallysoftware.com/

Intertrust Technologies Corporation  
   Develops general purpose digital rights management platform which serves as foundation for providers of digital information, technology and commerce services to participate in a global system for digital commerce. (Nasdaq: ITRU).
   http://www.intertrust.com/

Pluggable Authentication Modules  
   Sun's official PAM documentation. Programmer documentation and source code.
   http://www.sun.com/software/solaris/pam/