Research Papers

Side-channel analysis (SCA) attacks pose a major threat to embedded systems due to their ease of accessibility.

This paper proposes a lightweight ISE to support the cipher ChaCha on RISC-V architectures. we target embedded computing systems such as IoT edge devices that don’t support a vector engine.

In both hardware and software, masking can represent an effective means of hardening an implementation against side-channel attack vectors such as Differential Power Analysis (DPA).

This paper introduces a new framework for the composition of probing-secure circuits.

Post-quantum cryptography has known a Cambrian explosion in the last decade. We systematize the current state of knowledge on post-quantum cryptography.

We propose a new framework for (trapdoor) sampling over lattices.

FrodoKEM is a lattice-based key encapsulation mechanism, currently a semi-finalist in NIST’s post-quantum standardisation effort.

A multi-recipient key encapsulation mechanism, or mKEM, provides a scalable solution to securely communicating to a large group.

We survey the state-of-the-art industrial and academic ISEs for AES, implement and evaluate five different ISEs, one of which is novel.

The currently proposed RISC-V True Random Number Generator (TRNG) architecture breaks with previous ISA TRNG practice by splitting the Entropy Source (ES) component away from cryptographic PRNGs into a separate interface, and in its use of polling. We describe the interface, its use in cryptography, and offer additional discussion, background, and rationale for various aspects of it.

We introduce a new family of signature schemes based on the falcon design, which relies on module lattices. Our concrete instantiation enjoys the compactness and efficiency of falcon, and allows an intermediate security level.

In the recent years, some security proofs in cryptography have known significant improvements by replacing the statistical distance with alternative divergences.