Currently, with the threat of quantum computer attacks, the idea of combining several same-
type primitives has reemerged. This is also the case for cryptographic keys where a hybrid …

In Internet security protocols including TLS 1.3, KEMTLS, MLS and Noise, HMAC is being
assumed to be a dual-PRF, meaning a PRF not only when keyed conventionally (through its …

The development of quantum computers represents an important advancement in
computing, using quantum mechanics to address problems that were previously difficult to …

A multi-message multi-recipient PKE (mmPKE) encrypts a batch of messages, in one go, to a
corresponding set of independently chosen receiver public keys. The resulting''multi …

The internet is secured using a cryptographic system called TLS; also known from the 'lock
on the browser'. However, the building blocks of that system are in need of replacement …

This work describes a class of Algorithm Substitution Attack (ASA) generically targeting the
receiver of a communication between two parties. Our work provides a unified framework …

This paper presents a novel lattice-based cryptography implementation in the Transport
Layer Security (TLS) protocol to enhance the security of traffic transmission in IP networks …

In this work we consider the ability of powerful adversaries to conduct attacks targeting
cryptography. The archetype for a powerful adversary is a nation state actor that has access …

Given the recent advancements in quantum computing and Shor's algorithm, this project
aims at bringing Post-Quantum cryptography for e-mail and file encryption as well as …

1.1 Background The security of current public-key encryption and digital signature schemes
relies on the (believed) hardness of factoring large integers and of computing discrete …