Practical Cryptograhic Techniques for Secure and Privacy-Preserving Customer Loyalty Systems
J. Blömer, J. Bobolz, F. Eidens, T. Jager, P. Kramer, in: C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, H. Wehrheim (Eds.), On-The-Fly Computing -- Individualized IT-Services in Dynamic Markets, Heinz Nixdorf Institut, Universität Paderborn, Paderborn, 2023, pp. 237–246.

On Transforming Lattice-Based Cryptography to the Ring Setting
P. Kramer, On Transforming Lattice-Based Cryptography to the Ring Setting, 2022.

Comparison of Zero-Knowledge Range Proofs
P. Kramer, Comparison of Zero-Knowledge Range Proofs, Universität Paderborn, 2020.