About Knowledge-Based Authentication
Oracle Adaptive Access Manager includes knowledge-based authentication as standard secondary authentication (KBA). KBA is a secondary authentication mechanism that works in conjunction with the primary authentication method. To boost authentication strength, it is offered after successful primary authentication (for example, a user submitting single factor credentials such as a user name and password).

KBA provides an infrastructure for:

KBA is used to authenticate an individual based on their replies, which are substantiated by a real-time interactive question and answer process.

-Algorithms with several levels of logic for registration
-The registration of challenge questions and answers is managed by Registration Logic.
-Answers are based on levels of logic.
-Answer Logic consists of complex matching algorithms (fuzzy logic) that the system employs to -intelligently discover correct responses during the challenge-response procedure. In judging replies, algorithms and the level of Answer
Logic play a role.
- Validations = Validations are used to ensure that the answers submitted by a user during registration are correct.

KBA is used during automated user authentication or a CSR challenge, in which the CSR engages with the user to authenticate him before providing CSR services.
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