Jan Bobolz

provable security and privacy

Curriculum vitae

🏫 Academic life

  • 2015-2022: PhD student at Paderborn University in the group of Johannes Blömer.
    • Topic: anonymous credentials and applications to privacy-preserving systems.
  • 2010-2015: Computer science Bachelor and Master at Paderborn University (with distinction).

📈 Projects I’ve been involved in

  • I co-created 🦎 Cryptimeleon, a Java library for prototyping privacy-preserving crypto.
  • I am planning and supervising the prototype implementation of our 💳 incentive system as part of a transfer project.
  • I’m a contributor to the ZKProof 🗄 standardization effort for Sigma protocols.
  • I have supervised a DAAD RISE stipend student. The internship resulted in 🥶 Subzero, a zero-knowledge compiler for Cryptimeleon.
  • I am currently doing research with subproject 🪰 C1 in the SFB 901. Research on privacy-preserving crypto, in particular anonymous authentication.

For more information, see the research page or take a look at my publications.

🧳 Community

Invited talks

I have been invited to speak at:

  • 11th Heinz Nixdorf Symposium - Secure and Privacy-Preserving Services Workshop (2022)

Subreviews

I wrote reviews for:

  • Eurocrypt 2022
  • Security and Communication Networks (2022)
  • CCS 2019
  • CT-RSA 2019
  • AsiaCCS 2018

👨🏻‍🏫 Teaching

Resources I created

Advised Bachelor/Master theses

Theses I have advised.

  • Updatable Privacy Preserving Reputation System based on Blockchain (MSc, 2022)
  • On Transforming Lattice-Based Cryptography to the Ring Setting (MSc, 2022)
  • On Batch Proofs of Partial Knowledge (BSc, 2020)
  • Measuring the Performance of SNARK Libraries (BSc, 2020)
  • Comparison of Zero-Knowledge Range Proofs (BSc, 2020)
  • Post-Quantum Secure Group Signatures (MSc, 2019)
  • Efficient Finite-Field Arithmetic for Elliptic Curve Cryptography in Java (BSc, 2019)
  • Implementation and Comparison of Elliptic Curve Algorithms in Java (MSc, 2019)
  • Instantiating a Predicate Encryption Scheme via Pair Encodings (Bachelor project, 2017)
  • Commitment Schemes - Definitions, Variants, and Security (BSc, 2016)

Lectures/seminars

Courses I was involved in.

  • Summer 2022: Seminar “Current Trends in Cryptography”, seminar design and management.
  • Winter 2021/2022: Seminar “Post-Quantum Cryptography”, advisor to students.
  • Summer 2021: Foundations of Cryptography, organization, tutorials, and exercises.
  • Winter 2020/2021: 🏖
  • Summer 2020: Foundations of Cryptography, organization, tutorials, and exercises (online course; good practice award 🏆)
  • Winter 2019/2020: Seminar “Current Topics in Cryptography”, advisor.
  • Summer 2019: Foundations of Cryptography, tutorials and exercises.
  • Winter 2018/2019: Fundamental Algorithms, tutorials and exercises.
  • Summer 2018: Introduction to Cryptography, tutorials and exercises.
  • Summer 2017 and Winter 2017/2018: Project Group Re(AC)t, one of two advisors for the student group.
  • Winter 2016/2017: Modellierung (first semester cs course), tutorials
  • Summer 2016: Complexity Theory, helping with tutorials and exercise design
  • Winter 2015/2016: Modellierung (first semester cs course), tutorials
  • 2011-2013: Student TA for various Bachelor CS courses (Modellierung; Grundlagen der Programmiersprachen; Konzepte und Methoden der Systemsoftware)