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SPOTLIGHT PUBLICATION | 23/10/2025

Global Standards, Regional Variants: Designing for PQC Across Jurisdictions

In this episode of Shielded, Jo Lintzen speaks with Dr. Richard Searle, Chief AI Officer at Fortanix, about how confidential computing and a software-first model accelerate the shift to post-quantum cryptography.

Solution brief: PQShield and Quantum Origin strengthening post-quantum cryptography with proven quantum randomness

PQShield and Quantinuum have developed a joint solution, combining Quantum Origin’s mathematically-proven Quantum Random Number Generation (QRNG) with PQShield’s FIPS-140-3-validated post-quantum cryptographic library in PQCryptoLib-SDK, for resilient post-quantum algorithms.

No-Regrets Migration: Why PKI Should Be Your First Move

In this episode of Shielded, Johannes Lintzen speaks with Bruno Couillard, CEO and co-founder of Crypto4a, about his journey from designing the original Luna HSM to building the next generation of quantum-safe hardware.

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Cryptographic Divergences: New Techniques and New Applications

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

Mobile Energy Requirements of the Upcoming NIST Post-Quantum Cryptography Standards

We present an energy requirement analysis based on extensive measurements of PQC candidate algorithms on a Cortex M4 - based reference platform.

Post-Quantum Ciphertext Compression and Applications to Secure Group Messaging

A standard method to establish secure communications between two or more parties is to encrypt a common session key via a key encapsulation mechanism (or KEM).

Secure Update Propagation via Set-Homomorphic Signatures

In this document, we propose to use homomorphic signatures to maintain a consistent database across all nodes of distributed network.

Pyjamask: Block Cipher and Authenticated Encryption with Highly Efficient Masked Implementation

This paper introduces Pyjamask, a new block cipher family and authenticated encryption proposal submitted to the NIST lightweight cryptography standardization process.

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.