Academic

Publications

Short paper: Return Codes from Lattice Assumptions, E-Vote-ID Conference 2022.
Joint work with Audhild Høgåsen.

Verifiable Decryption in the Head, Australasian Conference on Information Security and Privacy 2022.
Joint work with Kristian Gjøsteen, Thomas Haines, Johannes Müller and Peter Rønne.

Short paper: Verifiable Decryption for BGV, the Workshop on Advances in Secure Electronic Voting 2022.

Anonymous Tokens with Public Metadata and Applications to Private Contact Tracing, Financial Crypto 2022.
Joint work with Martin Strand.

Lattice-Based Proof of Shuffle and Applications to Electronic Voting, Cryptographers’ Track RSA Conference 2021.
Joint work with Diego F. Aranha, Carsten Baum, Kristian Gjøsteen and Thor Tunge.

Library: Anonymous Tokens, open-source library, 2020.
Joint work with Henrik Walker Moe and Martin Strand. (Docs, Slides, Award)

Short paper: Where is the Web Still Insecure? Regional Scans for HTTPS Certificates, NISK 2018.
Joint work with Anushua Hossain and Kristina Nelson. (Presentation, Code)

Work in Progress

Verifiable Mix-Nets and Distributed Decryption for Voting from Lattice-Based Assumptions, in submission.
Joint work with Diego F. Aranha, Carsten Baum and Kristian Gjøsteen.

Improved Biometrics-Authenticated Key Exchange, in submission.
Joint work with Pia Bauspieß, Alexandre Tullot, Anamaria Costache, Christian Rathgeb, Jascha Kolberg and Christoph Busch.

Theses and Reports

Privacy-Preserving Cryptography from Zero-Knowledge Proofs, PhD Thesis, 2022.

Verifiable Random Secrets and Subliminal-Free Digital Signatures, Master’s Thesis, 2020.

Challenges in E2E Encrypted Group Messaging, Technical Report, 2020.

Comparative Study of ECC Libraries for Embedded Devices, Technical Report, 2019.

Bilinear Pairings of Elliptic Curves, Bachelor’s Thesis, 2015.

PhD Students

I am currently supervising the following PhD students:

Bachelor’s and Master’s Students

I am currently/have been (co-)supervising the following students:

Visitors

I have had the pleasure of having the following researchers visiting me at NTNU:

Professional Service

I was on the organizing committee for Eurocrypt 2022 in Trondheim. Colin Boyd was the General Chair.

I organized the Norwegian Crypto Seminar 2020 together with Kristian Gjøsteen and Martin Strand, and organized the Norwegian Crypto Seminar 2021 together with Lise Millerjord and Martin Strand.

I am organizing the NTNU Post-Quantum Cryptography Reading Group together with Anamaria Costache.

I am/have been on the program committee for the following conferences/workshops:

I am/have been a reviewer for the following conferences/workshops: