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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.
| 11/11/2022
How to Hide MetaData in MLS-Like Secure Group Messaging: Simple, Modular, and Post-Quantum
Secure group messaging (SGM) protocols allow large groups of users to communicate in a secure and asynchronous manner.
| 13/10/2022
A New Framework for More Efficient Round-Optimal Lattice-Based (Partially) Blind Signature via Trapdoor Sampling
Blind signatures, proposed by Chaum (CRYPTO’82), are interactive protocols between a signer and a user, where a user can obtain a signature without revealing the message to be signed.
| 07/09/2022
Secure Messaging in a Post-Quantum World
Team PQShield experts outline how PQC can be applied to secure messaging in a two-party setting, typically between mobile devices, as well as the specific performance and data requirements.
| 09/08/2022
WiP: Applicability of ISO Standard Side-Channel Leakage Tests to NIST Post-Quantum Cryptography
We discuss how to apply ISO 17825 to hardware modules that implement lattice-based PQC standards for public-key cryptography. We find that simple “random key” vs. “fixed key” tests are unsatisfactory due to the close linkage between public and private components of PQC keypairs.
| 22/06/2022
SP 800-22 and GM/T 0005-2012 Tests: Clearly Obsolete, Possibly Harmful
NIST SP 800–22, describes 15 statistical tests and suggests that they can be used to evaluate random and pseudorandom number generators in cryptographic applications. The Chinese standard GM/T 0005–2012 describes similar tests. These documents have not aged well. The weakest pseudorandom number generators will easily pass these tests, promoting false confidence in insecure systems.
| 22/06/2022
More efficient, provably-secure direct anonymous attestation from lattices
The Cloud-Edges (CE) framework, wherein small groups of Internet of Things (IoT) devices are serviced by local edge devices, enables a more scalable solution to IoT networks.
| 14/02/2022
On Entropy and Bit Patterns of Ring Oscillator Jitter
We show how to evaluate entropy, autocorrelation, and bit pattern distributions of thermal jitter ring oscillator noise sources, even with low jitter levels or some bias.
| 06/01/2022
Development of the RISC-V entropy source interface
The RISC-V true random number generator (TRNG) architecture breaks with previous ISA TRNG practice by splitting the entropy source (ES) component away from cryptographic DRBGs.
| | 19/11/2021
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.
| 13/11/2021
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.
| 23/08/2021
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.
| 23/08/2021
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.