Our research interests are centered around information security and applied cryptography, with the larger goal of safeguarding communications and providing strong privacy guarantees. We are active in several areas, a subset of which include:
- Functional encryption
- Verifiable computation
- Secure, private and distributed aggregation
- Secure multi-party computation
- Privacy-preserving biometric authentication
- Proximity-based authentication
Our flagship course Cybersecurity is offered in the Fall semester. We also offer a research seminar in the Spring and Fall semester, and a course on Cryptograhy in the Spring semester. Check our courses page for more information.
News
2025
June
- New paper!
Novak and Nan's paper A Post-Quantum Distributed OPRF from the Legendre PRF has been accepted at Esorics 2025.
- New paper!
March
- Our first Phd Graduate!
Johanees sucssefully defended his Phd thesis on March 7th, and he will be working as a Research Associate in the Cryptography and Security group at KIT.
- Our first Phd Graduate!
February
- New paper!
Subhranil and Jenit's paper Multi-Client Attribute-Based Unbounded Inner Product Functional Encryption, and More has been accepted at PKC 2025.
- New paper!
Jenit's paper BUFFing Threshold Signature Schemes has been accepted at PKC 2025.
- New paper!
2024
September
- Annual Swiss crypto day
On September 2nd, we successfully hosted the annual Swiss Crypto Day at the University of St. Gallen. For more info please find it in this link.
We are excited to announce that two new PhD students, Ioannis Katis and Wilson Tsuata, have joined us, along with a new postdoctoral researcher, Subhranil Dutta.
- Annual Swiss crypto day
April
- New paper!
Uddipana's paper SACfe: Secure Access Control in Functional Encryption with Unbounded Data has been accepted at IEEE Euro S&P 2024.
- New paper!
Nan's paper Efficient Two-Party Secure Aggregation via Incremental Distributed Point Function has been accepted at IEEE Euro S&P 2024.
- New paper!
March
- New paper!
Jenit's paper Oblivious Identity-based Encryption (IBE Secure Against an Adversarial KGC) has been accepted at SAC 2024.
- New paper!
Nan's paper Nomadic: Normalising Maliciously-Secure Distance with Cosine Similarity for Two-Party Biometric Authentication has been accepted at ACM AsiaCCS 2024.
- New paper!
2023
December
- New paper!
Jenit's paper Threshold Structure Preserving Signatures: Strong and Adaptive Security under Standard Assumptions has been accepted at PKC 2024.
- New paper!
October
- New paper!
Uddipana's paper Decentralized Private Stream Aggregation from Lattices has been accepted at ACNS 2024.
- New paper!
September
- New paper!
Hiraku and Nan's work Constant-Round Private Decision Tree Evaluation for Secret Shared Data has been accepted at PoPETs 2024.
- New paper!