Integrating CAPTCHA authentication technologies with WebSEAL

CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a popular mechanism used in Web sites to ensure humans only are interacting with the security functions of the Web site. CAPTCHA does this by producing images that include embedded numbers and letters that are not easily interpreted by automation tools. This article provides a solution and reference implementation of how to integrate CAPTCHA with IBM Tivoli Access Manager (TAM) WebSEAL.