Biometrics have become important for mobile
authentication, e.g. to unlock devices before using them.
One way to protect biometric information stored on mobile
devices from disclosure is using embedded smart cards (SCs)
with biometric match-on-card (MOC) approaches. However,
computational restrictions of SCs also limit biometric
matching procedures. We present a mobile MOC approach that
uses offline training to obtain authentication models with
a simplistic internal representation in the final trained
state, wherefore we adapt features and model representation
to enable their usage on SCs. The pre-trained model can be
shipped with SCs on mobile devices without requiring
retraining to enroll users. We apply our approach to
acceleration based mobile gait authentication as well as
face authentication and compare authentication accuracy and
computation time of 16 and 32 bit Java Card SCs. Using 16
instead of 32 bit SCs has little impact on authentication
performance and is faster due to less data transfer and
computations on the SC. Results indicate 11.4% and
2.4-5.4% EER for gait respectively face authentication,
with transmission and computation durations on SCs in the
range of 2 s respectively 1 s. To the best of our
knowledge this work represents the first practical approach
towards acceleration based gait MOC authentication.
@article{Findling_18_MobileMatchon, author = {Findling, Rainhard Dieter and H\"olzl, Michael and Mayrhofer, Ren\'e}, title = {Mobile Match-on-Card Authentication Using Offline-Simplified Models with Gait and Face Biometrics}, journal = { {IEEE} Transactions on Mobile Computing ({TMC})}, year = {2018}, volume = {14}, number = {11}, pages = {2578-2590}, month = nov, issn = {1558-0660}, doi = {10.1109/TMC.2018.2812883}, keywords = {Mobile Computing, Authentication, Smart cards, Gait biometrics, Face biometrics}, url = {https://ieeexplore.ieee.org/document/8307264/} }