IJCB 2022 Mobile Behavioral Biometrics Competition (MobileB2C)
This addresses the problem of secure and transparent user authentication for mobile device users, though it is incremental as it builds on existing competition frameworks.
The paper tackled benchmarking mobile user authentication systems using behavioral biometrics from ordinary interactions, resulting in a competition with four tasks that demonstrated feasibility but highlighted non-trivial challenges.
This paper describes the experimental framework and results of the IJCB 2022 Mobile Behavioral Biometrics Competition (MobileB2C). The aim of MobileB2C is benchmarking mobile user authentication systems based on behavioral biometric traits transparently acquired by mobile devices during ordinary Human-Computer Interaction (HCI), using a novel public database, BehavePassDB, and a standard experimental protocol. The competition is divided into four tasks corresponding to typical user activities: keystroke, text reading, gallery swiping, and tapping. The data are composed of touchscreen data and several background sensor data simultaneously acquired. "Random" (different users with different devices) and "skilled" (different user on the same device attempting to imitate the legitimate one) impostor scenarios are considered. The results achieved by the participants show the feasibility of user authentication through behavioral biometrics, although this proves to be a non-trivial challenge. MobileB2C will be established as an on-going competition.