CV

• since 2019:   IT security researcher at Fraunhofer AISEC
• 2018 - 2019: Research assistant at Freie Universität Berlin
• 2015 - 2018: M.Sc. in Computer Science at Technische Universität Darmstadt
• 2012 - 2015: B.Sc in Computer Science at Darmstadt University of Applied Sciences

Publications

Ohlendorf, Tim, Studier, Wolfgang, and Marian Margraf. "SLIDEDroid: A Secure Lightweight Identity for the Android Platform". crypto day matters 31 (2019) [Extended Abstract]

Schwan, Matthias, Tim Ohlendorf. "Mobile-ID based on Secure Elements". Fraunhofer SmartCard Workshop (2019) [Proceedings]

Ohlendorf, Tim, Wolfgang Studier, and Marian Margraf. "Digitale Identitäten auf dem Smartphone". Datenschutz und Datensicherheit-DuD 43.1 (2019): 17-22 [Journal]

Ohlendorf, Tim. “Detecting Custom Cryptography In Android Applications.” (2018) [Thesis].

Otterbein, Florian, Tim Ohlendorf, and Marian Margraf. "The German eID as an Authentication Token on Android Devices." IJCSIS Vol. 14 No.12 (2016) [Journal]

Otterbein, Florian, Tim Ohlendorf, and Marian Margraf. "Mobile Authentication with German eID." IFIP Summer School (2016) [Extended Abstract]

Ohlendorf, Tim. "Machbarkeitsstudie zur Online-Ausweisfunktion des neuen Personalausweises unter Android." (2015) [Thesis]

Workshops and Talks

• Designing and Implementing a Mobile European Student Card, 21st ISSE Conference 2019. Presentation Slides
• SLIDEDroid: A Secure Lightweight Identity for the Android Platform, 31. Krypto-Tag 2019. Presentation Slides
• Student eCard - Der digitale Studierendenausweis auf dem Smartphone, Research to Market Challenge 2019. Presentation Slides
• Digital Identities on Mobile Devices, Digital Document Security 2019. Presentation Slides
• Secure eID - Die Onlineausweisfunktion des nPA auf dem Smartphone, OmniSecure 2019. Presentation Slides
• Mobile Authentication with German eID, IFIP Summer School 2016.

Patents

• 08. Jan 2019 -  Matthias Schwan, Frank Dietrich, Tim Ohlendorf and Marian Margraf, "Verfahren zum sicheren Bereitstellen einer personalisierten elektronischen Identität auf einem Endgerät", German Patent 10 2019 100 334.2 and 10 2019 100 335.0, Pending

Teaching

• Winter 18/19: Security Protocols and Infrastructure (Tutorial)
• Summer 19: Machine Learning in the Context of IT Security (Seminar)
• Winter 19/20: Security Protocols and Infrastructure
• Summer 20: Machine Learning & IT-Security (Seminar)

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