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SPOTLIGHT PUBLICATION | 06/03/2026

Your Inventory Dashboard is Not a Migration Strategy

In this episode of Shielded we speak with Stefan Kölbl, an information security engineer at Google, about what it actually takes to migrate cryptography across complex global systems at scale.

Post-Quantum Negligence: When Inaction Becomes Legal Exposure

In this episode of Shielded, Jo speaks to Darren Bender, a US litigation attorney and Chief Litigation Officer in the post-quantum cryptography sector.

The End of Static Cryptography: What Leaders Must Understand Now

This special episode of Shielded brings together experts from cryptography, security architecture, and risk to explain what comes next. The conversation clarifies that security can no longer rely on fixed algorithms or one-time upgrades.

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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.

ModFalcon: Compact Signatures Based On Module-NTRU Lattices

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.

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.