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Ring-Learning-with-Errors (RLWE) has emerged as the foundation of many important techniques for improving security and privacy, including homomorphic encryption and post-quantum cryptography. While promising, these techniques have received limited use…
With an anonymous reputation system one can realize the process of rating sellers anonymously in an online shop. While raters can stay anonymous, sellers still have the guarantee that they…
We present a theoretical framework for analyzing the efficiency of consensus protocols, and apply it to analyze the optimistic and pessimistic confirmation times of state-of-the-art partially-synchronous protocols in the so-called…
Some of the most efficient protocols for Multi-Party Computation (MPC) follow a two-phase approach where correlated randomness, in particular Beaver triples, is generated in the offline phase and then used…
Deep learning-based cryptanalysis is one of the emerging trends in recent times. Differential cryptanalysis is one of the most po- tent approaches to classical cryptanalysis. Researchers are now modeling classical…
At Eurocrypt 2016, Méaux et al. presented FLIP, a new family of stream ciphers {that aimed to enhance the efficiency of homomorphic encryption frameworks. Motivated by FLIP, recent research has…
Side-channel analysis (SCA) attacks manifest a significant challenge to the security of cryptographic devices. In turn, it is generally quite expensive to protect from SCAs (energy, area, performance etc.). In…
In 2002, Barak and Goldreich introduced the notion of a universal argument and constructed an interactive universal argument for non-deterministic computations based on polynomially hard collision-resistant hash functions. Since then,…
This paper introduces registered functional encryption (RFE) that eliminates trust on the central authority for handling secrets. Unlike standard functional encryption (FE), in an RFE scheme, users create their secret…
Asynchronous Remote Key Generation (ARKG, introduced in ACM CCS 2020) allows for a party to create public keys for which corresponding private keys may be later computed by another intended…