Eric Klieme

Doctoral Student / Research Assistant

PhD student in the Secure Identity Lab

Hasso-Plattner-Institut (HPI) für
Digital Engineering gGmbH
Universität Potsdam
Prof.-Dr.-Helmert-Str. 2-3
14482 Potsdam

office:      H-1.18
phone:    +49 (0)331-5509-559
fax:         +49 (0)331-5509-325
email:     eric.klieme(at)

Research Topics

I am doing research in the field of behavioral authentication together with Christian Tietz in our Secure Identity Lab. Specifically, I am interested in the following sub topics

  • Real-World Deployments of Behavioral Authentication Systems
  • Modelling and Standardization of Behavioral Authentication Systems
  • Benchmarking of Algorithms used in Behavioral Authentication Systems

Further topics of research of our research group can be found at

HPI Identity Provider

Together with Christian Tietz we are providing the HPI OpenID Connect Identity Provider Service that you can use to easily integrate user authentication into your application based on existing HPI credentials.

If you have any questions concerning the provider, please do not hesistate to ask :)



Usually, each semester either a Bachelor's (summer semester) or Master's seminar (winter semester) is offered related to behavioral authentication. For the Bachelor's course there is a higher focus on respective IT architectures and its engineering.

In contrast, the Master's course focus on more on research topics such as large-scale data collections, data science & engineering, or machine learning.

More information regarding the current Master seminar and its content is available here.

Master / Bachelor Projects

I am always open for proposals regarding Bachelor or Master project Ideas in the context of the topics above. Of course. you can always address your own ideas :)

Finished projects

User Identity Verification using smartphone movements

Master Theses

I am always open for proposals regarding your Master Thesis ideas in the context of the topics above. Of coursey you can always address your own ideas :)

Finished Theses

5 Theses in the context of this Bachelor Project related to an Access Management System that interconnects Property Access Management and Gait-Based Authentication.


Klieme, E., Tietz, C. & Meinel, C. (2018). Beware of SMOMBIES: Verification of Users Based on Activities While Walking. 2018 17th IEEE International Conference On Trust, Security And Privacy In Computing And Communications/ 12th IEEE International Conference On Big Data Science And Engineering (TrustCom/BigDataSE) (p./pp. 651-660), August, 2018.

Klieme, E., Engelbrecht, K.-P. & Möller, S. (2014). Poster: Towards Continuous Authentication Based on Mobile Messaging App Usage. Symposium on Usable Privacy and Security, 2014.