April 06, 2005

The new project: SSO v3

At Warwick we have had a web Single Sign On (SSO) system for a few years now. Not knowing our long term plans, we developed a simple but performant system that served at the time just a couple of applications we had on the web (SiteBuilder our CMS and our forums system).

Times have changed.

There are now the best part of 20 systems using our existing SSO system, everything from blogs to timetabling, printer credits to accommodation bookings. It works well and is easy to integrate with, but we are ready to move to the next level.

Why is it time to move on?

  1. Scalability and management of more client services and users
  2. Ability to federate identity to and from external partners
  3. Improve security

I've been working on this now for the last couple of months and it is almost ready. It should not affect most people except that you'll be presented with a different login screen which will most likely be a full screen rather than a popup.


- 3 comments by 1 or more people Not publicly viewable

  1. Sounds wonderfully sophisticated.

    And to think I wrote SSO v1 in an afternoon…!

    06 Apr 2005, 13:02

  2. hehe. It lasted very well.

    06 Apr 2005, 13:49

  3. Can SSO include insite and webmail as you have to sign on again.

    Also it would be great if using a managed machine, it would also pull your SSO from the Novell logon.

    I've found that the more times you have to log in, the shorter and easier to remember the passwords become.

    e.g. an ideal password is something like 'hk67H3kw8' instead of something you enter many times like 'dog'.

    Users will put more effort in creating an ideal password if they know it won't be asked for every 5 minutes.

    Also, the whole password system becomes a joke when it is easy to store them using IE on the machine and other people use that machine.

    27 Apr 2005, 15:02


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