Foundations of Cryptography (original) (raw)

ETH Zürich Foundations of Cryptography Foundations of Cryptography

News People Research Teaching

News

Professor

Administration

PostDocs

PhD Students

Alumni

Research

Motivation.

Cryptography is a crucial tool for securing information systems. Cryptographic building blocks ensure the secrecy and integrity of information, and help to protect the privacy of users. Still, most actually deployed cryptographic schemes are not known to have any rigorously proven security guarantees. This has led to a number of far-reaching security issues in widely deployed software systems.

Goal.

Our goal is to provide practical cryptographic building blocks that come with rigorously proven security guarantees. These building blocks should be efficient enough for the use in large-scale modern information systems, and their security should be defined and formally analyzed in a mathematically rigorous manner.

Technical interests.

We are interested in the foundations of theoretical cryptography, and in general ways to derive constructions and security guarantees in a modular fashion. One research focus in our group concerns new cryptographic building blocks such as indistinguishability obfuscation, functional encryption, and fully homomorphic encryption. We are particularly interested in the design and analysis of cryptographic schemes in the public-key setting. This covers common tools like public-key encryption and digital signatures, specifically in realistic modern scenarios (such as settings with adaptive adversaries, and a huge number of users).

Teaching

Lecture: Digital Signatures

This information concerns the “Digital Signatures” lecture in the Spring 2024 semester at ETH. The content for this course will be provided through Moodle.

Lecture: Information Security

This information concerns the “Information Security” lecture in the Spring 2024 semester at ETH. The content for this course will be provided through Moodle.

Seminar: Current Topics in Cryptography

Information about the course will be communicate to the subscribed participants via email.

Lecture: Discrete Math

Starting with the autumn semester 2025, the Discrete Math lecture will be held by Prof. Hofheinz. If you are interested in becoming a student/teaching assistant, please contact Roman Langrehr (roman.langrehr@inf.ethz.ch).

Available Theses

If you are interested in a thesis or semester project in the Foundations of Cryptography group or have questions in general, please contact michael.reichle@inf.ethz.ch.

Foundations of Cryptography Contact

Universitaetstrasse 6 CAB Building, H Floor 8092 Zurich Switzerland claudia.guenthart@inf.ethz.ch foc.ethz.ch