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SPOTLIGHT PUBLICATION | 30/04/2025

Awareness to Action: The Blueprint for Quantum-Resilient Security | Garfield Jones

In this episode of Shielded: The Last Line of Cyber Defense, host Johannes Lintzen sits down with Dr. Garfield Jones from CISA to dive into the practical steps for post-quantum migration, making the case that waiting until 2035 is far too late.

Your Cryptography is stuck in 2010 – How to Catch Up | Hart Montgomery

In this episode of Shielded: we speak with Hart Montgomery, Technical Director at LF Decentralized Trust, about how outdated cryptographic dependencies, hidden vulnerabilities, and poor crypto agility are putting critical systems at risk.

How to Build Your 12-Month Post-Quantum Strategy With NIST’s Dustin Moody

Shielded welcomes Dustin Moody, the mathematician leading NIST's post-quantum cryptography standardization project, for an in-depth discussion on why organizations must act now.

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Integral Matrix Gram Root and Lattice Gaussian Sampling Without Floats

In this paper, we give techniques to implement Gaussian sampling over general lattices without using FPA. To this end, we revisit the approach of Peikert, using perturbation sampling.

Lossy CSI-FiSh: Efficient Signature Scheme with Tight Reduction to Decisional CSIDH-512

In this paper, we propose an FS-style signature scheme, called Lossy CSI-FiSh, constructed using the CSIDH-512 parameters and with a security proof.

Isochronous Gaussian Sampling: From Inception to Implementation

We present a framework for Gaussian sampling that is extremely simple, and it is precisely this simplicity that allowed us to make it easy to implement, provably secure, portable, efficient, and provably resistant against timing attacks.

Unifying Leakage Models on a Rényi Day

In this work, we provide new strategies to prove the security of masked implementations.

Exploiting Determinism in Lattice-based Signatures: Practical Fault Attacks on pqm4 Implementations of NIST Candidates

In this paper, we analyze the implementation level fault vulnerabilities of deterministic lattice-based signature schemes.

BEARZ Attack FALCON: Implementation Attacks with Countermeasures on the FALCON Signature Scheme

This research proposes the first fault attack analysis of FALCON and finds its lattice trapdoor sampler is as vulnerable to fault attacks as the GPV sampler used in alternative signature schemes.

Round5: Compact and Fast Post-quantum Public-Key Encryption

We present the ring-based configuration of the NIST submission Round5, a Ring Learning with Rounding (RLWR)- based IND-CPA secure public-key encryption scheme.

More Efficient Algorithms for the NTRU Key Generation Using the Field Norm

This work shows how to speed up key generation for NTRU-based algorithms by 100x.

Anonymous Reputation Systems Achieving Full Dynamicity from Lattices

In this work, we revisit the Anonymous Reputation Systems presented by Blömer et al. in (FC’15).

Shorter Messages and Faster Post-Quantum Encryption with Round5 on Cortex M

Round5 is a Public Key Encryption and Key Encapsulation Mechanism (KEM) based on General Learning with Rounding (GLWR), a lattice problem. We implement Round5 on Cortex M4.

Attribute-Based Signatures for Unbounded Circuits in the ROM and Efficient Instantiations from Lattices

In this work, we affirmatively close the gap between ABS schemes based on bilinear maps and lattices by constructing the first lattice-based ABS scheme for unbounded circuits in the random oracle model.