Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Beyond Post-Quantum Cryptography: Architecture, Memory, and Governance in the Quantum Era

Syed Muntasir Mamun

Published Oct 2, 2026• 0 citations
Publisher

Abstract

These interview talking points open on the locks-versus-the-archive fallacy: treating post-quantum cryptography as a software migration does not protect historically stolen data. They state that harvest-now-decrypt-later is already underway, with encrypted enterprise archives being hoarded pending a later break of current encryption, and that security has to move from perimeter defence to data-level resilience so the archive can survive independently of who holds the transient keys. They then describe data-centre speciation into three forms: silicon compute (hot, GPU-dense infrastructure for real-time AI), molecular halls (DNA or synthetic-polymer archives for permanent, zero-power retention), and sovereign caches (geopolitically bound, physically air-gapped, jurisdictionally hardened local vaults). Interview talking points by Dr. Syed Muntasir Mamun, ORCID 0000-0001-6845-2853.

DOI
10.5281/zenodo.23107892

Related papers

Beyond Algorithm Substitution: Architectural Resilience in the Post-Quantum Transition

Syed Muntasir Mamun

The migration to post-quantum cryptography (PQC) is widely framed as an algorithmic substitution problem: replace RSA and elliptic-curve primitives with the module-lattice schemes standardised by the United States National Institute of Standards and Technology (NIST) as ML-KEM (FIPS 203) and ML-DSA (FIPS 204). This paper argues that such a framing constitutes a locks-versus-the-archive fallacy. Adversaries practising harvest-now-decrypt-later (HNDL) strategies have already rendered perimeter-centric defences obsolete; changing cryptographic locks does nothing to protect the exabytes of ciphertext previously exfiltrated. The true enterprise and sovereign challenge is architectural. Four coupled claims are developed. First, security must shift from network perimeters to data-level resilience through genuine crypto-agility—the capacity to hot-swap primitives across legacy lakes without breaking application programming interfaces, compliance pipelines or availability. Second, infrastructure is speciating into three physical forms: silicon halls for hot compute, molecular halls for deep archival storage, and sovereign caches as jurisdictional vaults. Third, as enterprises become agentic systems, the post-quantum transition becomes a crisis of memory integrity; vector indices must be decoupled from narrative payloads and every memory block must carry a post-quantum chain of custody if narrative poisoning is to be prevented. Also available on Academia.edu: https://www.academia.edu/attachments/134136036/download_file?s=portfolio

•Sep 4, 2026•1 citation

Digital Trust under Autonomous AI and Quantum Risk: Signed Memory, Cryptographic Unpredictability, and Harvest-Now-Decrypt-Later

Syed Muntasir Mamun

Governments are adopting artificial intelligence at the same moment that the cryptographic assumptions under their long-lived secrets are being placed on a clock. This paper treats four developments as a single problem of digital trust rather than as separate technical topics. First, AI systems are moving from content generation to agentic action, and are already exposed to impersonation, poisoning and unauthorised use. Second, persistent memory across sessions creates a new class of institutional record, whose integrity cannot be reduced to a signature. Third, cryptographic security depends on unpredictable keys, not on non-determinism, and better randomness does not answer a quantum attack on public-key mathematics. Fourth, harvest-now-decrypt-later means that the threat to data which must remain confidential for decades exists before a cryptographically relevant quantum computer does. Drawing on published resource estimates, the NIST post-quantum standards, and the positions of major security agencies on quantum key distribution, the paper argues that preparation should begin with an inventory of vulnerable cryptography, hybrid migration of high-value key exchange, and an explicit regime for the ownership and correction of AI memory. The implications for diplomatic communications and for states with constrained compute and language resources are developed throughout. KSCCN discussion paper prepared for the SQLL session on AI and quantum computing, Baridhara DOHS, 3 October 2026. Dr. Syed Muntasir Mamun, ORCID 0000-0001-6845-2853. The views expressed are those of the author.

•Oct 2, 2026•0 citations

Beyond Post-Quantum Cryptography: Architecture, Memory, and Governance in the Quantum Era

Syed Muntasir Mamun

Paper by Dr. Syed Muntasir Mamun (KSCCN). Also available on Academia.edu: https://www.academia.edu/attachments/134650182/download_file?s=portfolio

•Oct 2, 2026•0 citations

AI, Quantum, and Digital Trust: Four Topics for Discussion. SQLL session, Baridhara DOHS, 3 October 2026

Syed Muntasir Mamun

Session slides. Four topics: latest trends in AI and prospects for quantum computing; signed memory and cognitive sovereignty; non-deterministic and unpredictable cryptographic keys; harvest now, decrypt later. Dr. Syed Muntasir Mamun, ORCID 0000-0001-6845-2853. SQLL, Baridhara DOHS, 3 October 2026.

•Oct 3, 2026•0 citations

Post-quantum Cryptography: Protecting Critical Data and Enhancing Cyber Resilience

Michael Fasulo

Quantum computing represents a significant threat to the asymmetric cryptographic algorithms currently used to protect the traditional data security infrastructure today’s enterprises depend upon. With Gartner predicting that by 2029 advances in quantum computing will render applications, data and networks protected by asymmetric cryptography unsafe, organisations must begin preparations to transition to post-quantum cryptography (PQC). Organisations that fail to prepare for quantum today risk potentially exposing their sensitive data on a massive scale, as threat actors are already collecting encrypted enterprise data in anticipation of future quantum decryption capabilities. The migration to PQC involves updating risk registers and enabling the crypto agility that supports the rapid implementation of new algorithms and ensures organisations can adapt fast to new regulatory standards.

Quantum Information Technologies Journal•Dec 31, 2025•0 citations

An Anatomical Assessment of Ideations in Giesecke+Devrient's Post-Quantum Cryptography Whitepaper: Comparative Analysis with Independent Scholarly Works on Quantum Security and Leading Field Research

Syed Muntasir Mamun

This paper conducts a detailed anatomical dissection of the core ideations presented in Giesecke+Devrient's (G+D) whitepaper on post-quantum cryptography (PQC), focusing on its framing of quantum threats, the "harvest now, decrypt later" (HNDL) strategy, migration imperatives, and practical solutions. Through a structured breakdown of conceptual architecture, rhetorical strategies, and technical emphases, the analysis reveals a predominantly industry-oriented, actionable narrative. This is then rigorously compared and contrasted with interdisciplinary papers by Dr. Syed Muntasir Mamun available on drmuntasir.github.io (emphasising geopolitical, theoretical, and cybernetic dimensions of quantum security) and with leading academic and standards-based research in the field (primarily NIST-standardised algorithms, lattice-based implementations, and broader PQC surveys). Nuances, edge cases (e.g., cryptographic agility challenges, Mamun, SM (2026)……………………………………………………………….1 An Anatomical Assessment of Ideations in Giesecke+Devrient's Post-Quantum Cryptography Whitepaper: Comparative Analysis with Independent Scholarly Works on Quantum Security and Leading Field Research timeline uncertainties for cryptographically relevant quantum computers (CRQCs), and hybrid transition complexities), and broader implications for digitalisation and global security are explored. Also available on Academia.edu: https://www.academia.edu/attachments/132646656/download_file?s=portfolio

•Jan 1, 2026•0 citations
These interview talking points open on the locks-versus-the-archive fallacy: treating post-quantum cryptography as a software migration does not protect historically stolen data. They state that harvest-now-decrypt-later is already underway, with encrypted enterprise archives being hoarded pending a later break of current encryption, and that security has to move from perimeter defence to data-level resilience so the archive can survive independently of who holds the transient keys. They then describe data-centre speciation into three forms: silicon compute (hot, GPU-dense infrastructure for real-time AI), molecular halls (DNA or synthetic-polymer archives for permanent, zero-power retention), and sovereign caches (geopolitically bound, physically air-gapped, jurisdictionally hardened local vaults). Interview talking points by Dr. Syed Muntasir Mamun, ORCID 0000-0001-6845-2853.
The migration to post-quantum cryptography (PQC) is widely framed as an algorithmic substitution problem: replace RSA and elliptic-curve primitives with the module-lattice schemes standardised by the United States National Institute of Standards and Technology (NIST) as ML-KEM (FIPS 203) and ML-DSA (FIPS 204). This paper argues that such a framing constitutes a locks-versus-the-archive fallacy. Adversaries practising harvest-now-decrypt-later (HNDL) strategies have already rendered perimeter-centric defences obsolete; changing cryptographic locks does nothing to protect the exabytes of ciphertext previously exfiltrated. The true enterprise and sovereign challenge is architectural. Four coupled claims are developed. First, security must shift from network perimeters to data-level resilience through genuine crypto-agility—the capacity to hot-swap primitives across legacy lakes without breaking application programming interfaces, compliance pipelines or availability. Second, infrastructure is speciating into three physical forms: silicon halls for hot compute, molecular halls for deep archival storage, and sovereign caches as jurisdictional vaults. Third, as enterprises become agentic systems, the post-quantum transition becomes a crisis of memory integrity; vector indices must be decoupled from narrative payloads and every memory block must carry a post-quantum chain of custody if narrative poisoning is to be prevented. Also available on Academia.edu: https://www.academia.edu/attachments/134136036/download_file?s=portfolio
Governments are adopting artificial intelligence at the same moment that the cryptographic assumptions under their long-lived secrets are being placed on a clock. This paper treats four developments as a single problem of digital trust rather than as separate technical topics. First, AI systems are moving from content generation to agentic action, and are already exposed to impersonation, poisoning and unauthorised use. Second, persistent memory across sessions creates a new class of institutional record, whose integrity cannot be reduced to a signature. Third, cryptographic security depends on unpredictable keys, not on non-determinism, and better randomness does not answer a quantum attack on public-key mathematics. Fourth, harvest-now-decrypt-later means that the threat to data which must remain confidential for decades exists before a cryptographically relevant quantum computer does. Drawing on published resource estimates, the NIST post-quantum standards, and the positions of major security agencies on quantum key distribution, the paper argues that preparation should begin with an inventory of vulnerable cryptography, hybrid migration of high-value key exchange, and an explicit regime for the ownership and correction of AI memory. The implications for diplomatic communications and for states with constrained compute and language resources are developed throughout. KSCCN discussion paper prepared for the SQLL session on AI and quantum computing, Baridhara DOHS, 3 October 2026. Dr. Syed Muntasir Mamun, ORCID 0000-0001-6845-2853. The views expressed are those of the author.
Quantum computing represents a significant threat to the asymmetric cryptographic algorithms currently used to protect the traditional data security infrastructure today’s enterprises depend upon. With Gartner predicting that by 2029 advances in quantum computing will render applications, data and networks protected by asymmetric cryptography unsafe, organisations must begin preparations to transition to post-quantum cryptography (PQC). Organisations that fail to prepare for quantum today risk potentially exposing their sensitive data on a massive scale, as threat actors are already collecting encrypted enterprise data in anticipation of future quantum decryption capabilities. The migration to PQC involves updating risk registers and enabling the crypto agility that supports the rapid implementation of new algorithms and ensures organisations can adapt fast to new regulatory standards.
This paper conducts a detailed anatomical dissection of the core ideations presented in Giesecke+Devrient's (G+D) whitepaper on post-quantum cryptography (PQC), focusing on its framing of quantum threats, the "harvest now, decrypt later" (HNDL) strategy, migration imperatives, and practical solutions. Through a structured breakdown of conceptual architecture, rhetorical strategies, and technical emphases, the analysis reveals a predominantly industry-oriented, actionable narrative. This is then rigorously compared and contrasted with interdisciplinary papers by Dr. Syed Muntasir Mamun available on drmuntasir.github.io (emphasising geopolitical, theoretical, and cybernetic dimensions of quantum security) and with leading academic and standards-based research in the field (primarily NIST-standardised algorithms, lattice-based implementations, and broader PQC surveys). Nuances, edge cases (e.g., cryptographic agility challenges, Mamun, SM (2026)……………………………………………………………….1 An Anatomical Assessment of Ideations in Giesecke+Devrient's Post-Quantum Cryptography Whitepaper: Comparative Analysis with Independent Scholarly Works on Quantum Security and Leading Field Research timeline uncertainties for cryptographically relevant quantum computers (CRQCs), and hybrid transition complexities), and broader implications for digitalisation and global security are explored. Also available on Academia.edu: https://www.academia.edu/attachments/132646656/download_file?s=portfolio