Research Papers

| 14/02/2022
On Entropy and Bit Patterns of Ring Oscillator Jitter
We show how to evaluate entropy, autocorrelation, and bit pattern distributions of thermal jitter ring oscillator noise sources, even with low jitter levels or some bias.
| 06/01/2022
Development of the RISC-V entropy source interface
The RISC-V true random number generator (TRNG) architecture breaks with previous ISA TRNG practice by splitting the entropy source (ES) component away from cryptographic DRBGs.
| | 19/11/2021
MIRACLE: MIcRo-ArChitectural Leakage Evaluation: A study of micro-architectural power leakage across many devices
In this paper, we describe an extensible experimental infrastructure for evaluating the micro-architectural leakage, based on power consumption, that stems from a physical device.
| 13/11/2021
A Concrete Treatment of Efficient Continuous Group Key Agreement via Multi-Recipient PKEs
Continuous group key agreements (CGKAs) are a class of protocols that can provide strong security guarantees to secure group messaging protocols such as Signal and MLS.
| 23/08/2021
A lightweight ISE for ChaCha on RISC-V
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.
| 23/08/2021
XDIVINSA: eXtended DIVersifying INStruction Agent to Mitigate Power Side-Channel Leakage
Side-channel analysis (SCA) attacks pose a major threat to embedded systems due to their ease of accessibility.
| 11/08/2021
An Instruction Set Extension to Support Software-Based Masking
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).
| 09/07/2021
Probing Security through Input-Output Separation and Revisited Quasilinear Masking
This paper introduces a new framework for the composition of probing-secure circuits.
| 11/05/2021
SoK: How (not) to Design and Implement Post-quantum Cryptography
Post-quantum cryptography has known a Cambrian explosion in the last decade. We systematize the current state of knowledge on post-quantum cryptography.
| 01/05/2021
Exact Lattice Sampling from Non-Gaussian Distributions
We propose a new framework for (trapdoor) sampling over lattices.
| 20/03/2021
Exploring Parallelism to Improve the Performance of FrodoKEM in Hardware
FrodoKEM is a lattice-based key encapsulation mechanism, currently a semi-finalist in NIST’s post-quantum standardisation effort.
| 07/12/2020
Scalable Ciphertext Compression Techniques for Post-quantum KEMs and Their Applications
A multi-recipient key encapsulation mechanism, or mKEM, provides a scalable solution to securely communicating to a large group.