Exploring Potentials and Challenges of Blockchain-based Public Key - PowerPoint PPT Presentation

Exploring Potentials and Challenges of Blockchain-based Public Key Infrastructures Thomas Hepp, Fabian Späh, Alexander Schönhals, Ph Philip Ehret , and Bela Gipp

WHO’S BEHIND THE RESEARCH? Bela Gipp Thomas Hepp Alexander Schoenhals Philip Ehret gipp@uni-wuppertal.de thomas.hepp@uni.kn alexander.schoenhals@uni.kn philip.ehret@uni.kn Department of Computer and Information Science at the University of Konstanz/Wuppertal, Germany. Our research covers the fields of: - Data Science - Information Retrieval, Analysis & Visualization - Blockchain Technology - Digital Media & Web Engineering 14/05/2019 Exploring Potentials and Challenges of Blockchain-based PKIs – T. Hepp, F. Späh, A. Schönhals, P.Ehret, B. Gipp 2

Outline • Motivation • PKIs • Blockchain-Based PKIs • Challenges • Conclusion • Future Work 14/05/2019 Exploring Potentials and Challenges of Blockchain-based PKIs – T. Hepp, F. Späh, A. Schönhals, P.Ehret, B. Gipp 3

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Scalability solved à DPKI • Designated blockchains, e.g. Namecoin [11], Frederiksson [12] • PKI schemes for existing blockchains: Catena [13], PBCert [14] • 14/05/2019 Exploring Potentials and Challenges of Blockchain-based PKIs – T. Hepp, F. Späh, A. Schönhals, P.Ehret, B. Gipp 16

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13. Shixiong Yao, Jing Chen, Kun He, Ruiying Du, Tianqing Zhu, Xin Chen: PBCert: Privacy-Preserving Blockchain-Based Certificate Status Validation Toward Mass Storage Management 14. Alin Tomescu, Srinivas Devadas: Catena: Efficient Non-equivocation via Bitcoin 14/05/2019 Exploring Potentials and Challenges of Blockchain-based PKIs – T. Hepp, F. Späh, A. Schönhals, P.Ehret, B. Gipp 19