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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.
| 16/10/2025
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.
| 09/10/2025
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.
| 10/08/2025
Continuous Group-Key Agreement: Concurrent Updates without Pruning
Continuous Group Key Agreement (CGKA) is the primitive underlying secure group messaging. It allows a large group of N users to maintain a shared secret key that is frequently rotated by the group members in order to achieve forward secrecy and post compromise security.
| 10/08/2025
Hardware Is the Hidden Risk: Ferhat Yaman on PQC, Side-Channel Attacks, and AI Privacy
We meet Ferhat Yaman, a security researcher at AMD’s Product Security Office, to explore the front lines of post-quantum cryptography, hardware vulnerabilities, and AI privacy.
| 17/07/2025
Unmasking TRaccoon: A Lattice-Based Threshold Signature with An Efficient Identifiable Abort Protocol
In this work, we propose TRaccoon-IA, a TRaccoon with an efficient identifiable abort protocol, allowing to identify malicious signers when the signing protocol fails.
| 17/07/2025
Comprehensive Deniability Analysis of Signal Handshake Protocols: X3DH, PQXDH to Fully Post-Quantum with Deniable Ring Signatures
We analyze Signal's classically secure X3DH and harvest-now-decrypt-later-secure PQXDH, and show the settings for which PQXDH is (un)deniable against harvest-now--later attacks..and more.
| 17/07/2025
Exploring How to Authenticate Application Messages in MLS: More Efficient, Post-Quantum, and Anonymous Blocklistable
In this work, we focus on the authenticity of the application messages exchanged in MLS.
| 17/07/2025
Bundled Authenticated Key Exchange: A Concrete Treatment of Signal’s Handshake Protocol and Post-Quantum Security
In this work, which was accepted at USENIX Security 2025, we propose a new way of modeling Signal handshake protocols.
| 17/07/2025
The biggest risk to PQC migration is you (and other humans)
What if the biggest threat to your cybersecurity strategy isn’t quantum computing, but humans? In this episode of Shielded, we welcome Professor Bill Buchanan, OBE, FRSE, a global leader in applied cryptography, digital trust, and secure system design.
| 15/07/2025
More Efficient Protocols for Post-Quantum Secure Messaging
More Efficient Protocols for Post-Quantum Secure Messaging is a talk presented by Thomas Prest at RWC 2024. This was the third talk in a session on post-quantum messaging, chaired by Dan Boneh.
| 26/06/2025
The Crypto Agility Paradox: When Hardware Becomes Your Security Bottleneck
In this episode of Shielded, we are joined by Cassie Crossley, Vice President of Supply Chain Security in the Global Cybersecurity & Product Security Office at Schneider Electric. Cassie shares the hard-earned lessons from a multi-year crypto agility program in one of the world’s largest OT environments.
| 09/06/2025
Share the MAYO: thresholdizing MAYO
We present the first comprehensive study on thresholdizing practical OV-based signature schemes, specifically focusing on MAYO and UOV.
| 09/06/2025
A reduction from Hawk to the principal ideal problem in a quaternion algebra
In this article we present a non-uniform reduction from rank-2 module-LIP over Complex Multiplication fields, to a variant of the Principal Ideal Problem, in some fitting quaternion algebra.
| 09/06/2025
Cryptanalysis of rank-2 module-LIP: a single real embedding is all it takes
In this work, we generalize the attack of Mureau et al. against rank-2module-LIP to the family of all number fields with at least one real embedding, which contains the NTRU Prime fields.