Web Directory

» CRYPTOCard Network Security
   Password tokens delivered on key fobs, palm pilots, hardware or software. Security for dial in, access control, internet and web connections. Offers a strong two factor system. Management software. Includes rationale and business case for token-based acce
   http://www.cryptocard.com/

» Clearview Systems
   Suppliers of Secure Computing SafeWord, a scheme based on hardware tokens. Includes rationale for single-use password systems, as well as other network security products.
   http://www.clearview.co.uk/

» DynaPass
   Provides primary or secondary authentication by regularly distributing passwords (or parts of passwords) through wireless phones. Time locked access.
   http://www.dynapass.com/

» JOTP Calculator
   A java applet OTP (S/Key) calculator. The applet downloads onto the client machine and calculates locally.
   http://www.cs.umd.edu/users/harry/jotp/

» OTPC 9000
   An OTP (S/Key) calculator for Nokia 9000 cellular phones. Includes S/Key information and resources.
   http://www.basun.net/software/otpc/

» PalmKey
   OTP (S/Key) calculator for palm pilots. Information about both source and binary distributions.
   http://palmkey.sourceforge.net/

» PyOTP
   A simple Python library, currently under development, to generate OTP (S/Key) responses. RFC-2289 compliant. Includes links to development and release information.
   http://pyotp.sourceforge.net/

» RFC2289 - A One-Time Password System
   The current internet standard, as descended from the original S/Key specification.
   http://tools.ietf.org/html/rfc2289

» S/Key Introduction
   A technical description of the S/Key algorithm.
   http://www.surfnet.nl/innovatie/surf-ace/security/doc/skey.html

» SkeyCalc
   OTP (S/Key) calculator for MacOS X, MacOS X Server and NEXTSTEP. RFC-2289 compliant. Software downloads, documentation and an introduction to the technology.
   http://www.orange-carb.org/SkeyCalc/

» The S/KEY One-Time Password System
   Scholarly paper by Neil Haller on the original S/Key system. Links to many citations from the original paper.
   http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.44.6790

» otpCalc - An OTP and S/Key calculator for X
   otpCalc is an RFC2289 and RFC1760 compliant one time password calculator, written to use the GTK+ library for screen I/O.
   http://killa.net/infosec/otpCalc/