The University of Texas at Austin

uTexas Identity Manager (TIM)

Transitional Fat Cookie

The Fat Cookie is being deprecated and will be replaced by UTLogin. The Fat Cookie is scheduled to be retired in June 2014.

The 'Fat Cookie' refers to a deprecated, modified version of a normal browser cookie that was encoded and digitally signed. The fat cookie contained biographical information about the user. It allowed services not deployed on specific administrative machines to use UT EID logon authentication.

The fat cookie allowed access the following fields:

  • Name

  • UT EID

  • UIN

  • Assurance level

  • Cookie expiration time

  • Number of roles

  • Roles (In the format Component-Role-Status)

  • IP address

  • Cookie status

  • Keyid

  • Version

In advance of the release of the UT Web environment, ITS plans to simplify the Fat Cookie transition for Web Central customers by creating a Transitional Fat Cookie. The Transitional Fat Cookie will allow www.utexas.edu and other Web Central-hosted sites that use the Fat Cookie to continue to operate as expected after the Central Web Authentication (CWA) system is retired. After the Transitional Fat Cookie is fully deployed, visitors to EID-protected pages on Web Central will log in via the UTLogin sign-on page instead of the CWA sign-on page. Use of the Transitional Fat Cookie will end when sites are migrated to the new UT Web environment. Please email web@utexas.edu if you have any questions.

Last updated March 18, 2014 @ 4:59 pm

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