All Post-Quantum, PQC Posts
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Post-Quantum, PQC, Quantum Security
Cryptographic Stack in Modern Interbank Payment Systems
International interbank payments rely on multiple layers of classical cryptography to ensure security from end to end. When a user initiates a cross-border transfer at their local bank, cryptographic mechanisms protect the transaction at every stage - from the customer’s online banking session, through the bank’s internal systems, across the SWIFT interbank messaging network, to settlement in a central Real-Time Gross Settlement (RTGS) system.
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Post-Quantum, PQC, Quantum Security
Post-Quantum Cryptography (PQC) and Network Connectivity: Challenges and Impacts
PQC brings new dependencies between cryptography and network connectivity. Unlike the relatively small and efficient crypto of the past, post-quantum algorithms force us to consider link capacity, latency, and device limitations as first-class concerns in security design. Some network environments - particularly low-power and low-bandwidth links - will face significant challenges in a post-quantum migration, potentially impacting communication reliability. Other environments, like typical broadband and…
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Q-Day
What Will Really Happen Once Q-Day Arrives – When Our Current Cryptography Is Broken?
As the world edges closer to the era of powerful quantum computers, experts warn of an approaching “Q-Day” (sometimes called Y2Q or the Quantum Apocalypse): the day a cryptographically relevant quantum computer can break our current encryption. Unlike the Y2K bug—which had a fixed deadline and was mostly defused before the clock struck midnight—Q-Day won’t announce itself with a clear date or time. We won’t…
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Q-Day
Q-Day Predictions: Anticipating the Arrival of CRQC
While CRQCs capable of breaking current public key encryption algorithms have not yet materialized, technological advancements are pushing us towards what is ominously dubbed 'Q-Day'—the day a CRQC becomes operational. Many experts believe that Q-Day, or Y2Q as it's sometimes called, is just around the corner, suggesting it could occur by 2030 or even sooner; some speculate it may already exist within secret government laboratories.
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Post-Quantum, PQC, Quantum Security
Quantum Readiness for Mission-Critical Communications (MCC)
Mission-critical communications (MCC) networks are the specialized communication systems used by “blue light” emergency and disaster response services (police, fire, EMS), military units, utilities, and other critical operators to relay vital information when lives or infrastructure are at stake. These networks prioritize reliability, availability, and resilience – they must remain operational even during disasters or infrastructure outages. For example, in a hurricane that knocks out…
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Post-Quantum, PQC, Quantum Security
Harvest Now, Decrypt Later (HNDL) Risk
"Harvest Now, Decrypt Later" (HNDL), also known as "Store Now, Decrypt Later" (SNDL), is a concerning risk where adversaries collect encrypted data with the intent to decrypt it once quantum computing becomes capable of breaking current encryption methods. This is the quantum computing's ticking time bomb, with potential implications for every encrypted byte of data currently considered secure.
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Post-Quantum, PQC, Quantum Security
Post-Quantum Cryptography PQC Challenges
The transition to post-quantum cryptography is a complex, multi-faceted process that requires careful planning, significant investment, and a proactive, adaptable approach. By addressing these challenges head-on and preparing for the dynamic cryptographic landscape of the future, organizations can achieve crypto-agility and secure their digital assets against the emerging quantum threat.
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Post-Quantum, PQC, Quantum Security
Quantum Era Demands Changes to ALL Enterprise Systems
In my work with various clients, I frequently encounter a significant misunderstanding about the scope of preparations required to become quantum ready. Many assume that the transition to a post-quantum world will be straightforward, involving only minor patches to a few systems or simple upgrades to hardware security modules (HSMs). Unfortunately, this is a dangerous misconception. Preparing for this seismic shift is far more complex…
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