A different take on the topic of authentication

One of our partners needed help with creation of a new solution for a stronger type of authentication. We helped their team to develop a new type of authentication based on user interaction. The user interaction works in a form of challenges for which the user needs to find a solution.

Implementation of a plugin for Strong Authentication Server

Plugin is used for a new type of authentication – based on user interaction called “Challenge/Response Authentication”
Authentication server generates a challenge for a user (challenge can be a number)
User takes the challenge and with his authentication device generates an answer
Authentication server validates whether the answer is correct or not
Part of agile (Scrum) development team
Database type depends on the first configuration with more options (Oracle, MySQL, MSSQL…)
Fixing issues on authentication server after plugin implementation
Server is developed in Java 7 with a lot of frameworks in every module e.g. Spring, GWT