Blockchain and other Distributed Ledger Technologies (DLTs) have evolved significantly in
the last years and their use has been suggested for numerous applications due to their …

Quantum cryptography is the art and science of exploiting quantum mechanical effects in
order to perform cryptographic tasks. While the most well-known example of this discipline is …

We propose an efficient commutative group action suitable for non-interactive key exchange
in a post-quantum setting. Our construction follows the layout of the Couveignes–Rostovtsev …

Abstract The National Institute of Standards and Technology is in the process of selecting
publickey cryptographic algorithms through a public, competition-like process. The new …

We present new candidates for quantum-resistant public-key cryptosystems based on the
conjectured difficulty of finding isogenies between supersingular elliptic curves. The main …

In this paper we report on a new record class group computation of an imaginary quadratic
field having 154-digit discriminant, surpassing the previous record of 130 digits. This class …

We present new candidates for quantum-resistant public-key cryptosystems based on the
conjectured difficulty of finding isogenies between supersingular elliptic curves. The main …

Although quantum computing is still in its nascent age, its evolution threatens the most
popular public-key encryption systems. Such systems are essential for today's Internet …

We propose a new suite of algorithms that significantly improve the performance of
supersingular isogeny Diffie-Hellman (SIDH) key exchange. Subsequently, we present a full …

Isogeny-based assumptions have emerged as a viable option for quantum-secure
cryptography. Recent works have shown how to build efficient (public-key) primitives from …