Research Papers

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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.

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.

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.

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.

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).

Probing Security through Input-Output Separation and Revisited Quasilinear Masking

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

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.

Exact Lattice Sampling from Non-Gaussian Distributions

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

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.

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.

The design of scalar AES Instruction Set Extensions for RISC-V

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

Building a Modern TRNG: An Entropy Source Interface for RISC-V

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.