#qkd — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #qkd, aggregated by home.social.
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El lado del mal - III edición del Programa de Especialización de Quantum y Post-Quantum Computing para Ciberseguridad: Noviembre 2026 https://www.elladodelmal.com/2026/07/iii-edicion-del-programa-de.html #Quantum #PostQuantum #Criptografia #Seguridad #PQC #QKD #Cuántica
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El lado del mal - III edición del Programa de Especialización de Quantum y Post-Quantum Computing para Ciberseguridad: Noviembre 2026 https://www.elladodelmal.com/2026/07/iii-edicion-del-programa-de.html #Quantum #PostQuantum #Criptografia #Seguridad #PQC #QKD #Cuántica
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El lado del mal - III edición del Programa de Especialización de Quantum y Post-Quantum Computing para Ciberseguridad: Noviembre 2026 https://www.elladodelmal.com/2026/07/iii-edicion-del-programa-de.html #Quantum #PostQuantum #Criptografia #Seguridad #PQC #QKD #Cuántica
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El lado del mal - III edición del Programa de Especialización de Quantum y Post-Quantum Computing para Ciberseguridad: Noviembre 2026 https://www.elladodelmal.com/2026/07/iii-edicion-del-programa-de.html #Quantum #PostQuantum #Criptografia #Seguridad #PQC #QKD #Cuántica
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El lado del mal - III edición del Programa de Especialización de Quantum y Post-Quantum Computing para Ciberseguridad: Noviembre 2026 https://www.elladodelmal.com/2026/07/iii-edicion-del-programa-de.html #Quantum #PostQuantum #Criptografia #Seguridad #PQC #QKD #Cuántica
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"Europe chose CV-QKD for its quantum networks." I keep seeing this in quantum coverage. It's wrong, and the real picture is more interesting, and more relevant to infosec practitioners than it first appears.
EuroQCI, the EU's quantum communication infrastructure programme, funds six parallel industrial projects across three QKD modalities. eCAUSIS is explicitly building DV-QKD systems and a European DV-QKD supply chain. MDI-QUEEN is developing measurement-device-independent QKD. QUARTERNEXT (launched July 6, €10M, coordinated by Luxquanta) is one of several CV-QKD tracks, alongside QKISS and SEQRET.
Europe didn't pick a protocol winner. It's building a portfolio.
So why does CV-QKD get disproportionate strategic attention? Supply chain.
DV-QKD's highest-performance detectors are superconducting nanowire single-photon detectors (SNSPDs) - cryogenic, specialised, thin supplier base. ID Quantique in Geneva was Europe's flagship SNSPD manufacturer. Then IonQ acquired a controlling stake (announced Feb 2025, completed May 2025). Europe's most prominent single-photon detector company is now a US subsidiary.
Single Quantum in Delft is EU-owned but small. Pixel Photonics in Münster (€13.5M raised April 2026) is a newer entrant. Beyond that: Photec (China), Scontel (Russia), Photon Spot and Quantum Opus (US).
CV-QKD sidesteps this dependency. Its detection hardware: homodyne receivers, InGaAs photodiodes, balanced detectors; uses telecom-derived components that European industry manufactures at scale. Not off-the-shelf telecom gear (a secure CV-QKD receiver requires tight shot-noise calibration, excess-noise estimation, and security-specific DSP), but the manufacturing base is European.
QUARTERNEXT's alignment with PIXEurope (the EU's ~€400M photonic chip pilot line) makes the industrial logic explicit.
Now here's what makes it more complicated than a clean sovereignty narrative.
China's 10,000+ km quantum network (described in a 2025 npj Quantum Information paper) is hybrid. Four decoy-state BB84 systems on the backbone, two Gaussian-modulated CV-QKD systems in metro networks. They use InGaAs/InP avalanche detectors and upconversion detectors on the backbone - not SNSPDs. The "China chose DV, Europe chose CV" framing is wrong when you look at deployment evidence.
Both ecosystems are converging on multi-modality. The question isn't which protocol wins. It's who controls the component stack.
The security proof angle matters for the infosec crowd too. DV-QKD (decoy-state BB84) has two decades of finite-key, coherent-attack security proofs. CV-QKD's proof literature is younger and more active: composable security for Gaussian modulation established in 2022, coherent-attack proofs for discrete modulation improved substantially in Feb 2025. The photon-number cutoff assumption in CV-QKD proofs (infinite-dimensional Hilbert spaces require truncation for numerical analysis) is an active research area.
This matters because the EU's Nostradamus certification lab at JRC Ispra will need to evaluate CV-QKD products against these proofs. If the proofs carry unresolved assumptions, the certification carries them too. The pipeline from proof theory to certified product to procurement framework is where CV-QKD's practical future lives or dies.
For practitioners: PQC migration is still the action item. The regulatory deadlines are set. QKD is a specialised additional control for specific use cases with specific risk profiles. If you're in EU-regulated critical infrastructure, track the Nostradamus certification pipeline as it will shape procurement requirements. Insist on modality-neutral key management interfaces (ETSI GS QKD 004/014). Don't lock into one vendor or one QKD flavour.
Full analysis: https://postquantum.com/post-quantum/europe-cv-qkd-industrialisation/
#infosec #cybersecurity #quantum #QKD #PQC #cryptography #postquantum #EuroQCI
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"Europe chose CV-QKD for its quantum networks." I keep seeing this in quantum coverage. It's wrong, and the real picture is more interesting, and more relevant to infosec practitioners than it first appears.
EuroQCI, the EU's quantum communication infrastructure programme, funds six parallel industrial projects across three QKD modalities. eCAUSIS is explicitly building DV-QKD systems and a European DV-QKD supply chain. MDI-QUEEN is developing measurement-device-independent QKD. QUARTERNEXT (launched July 6, €10M, coordinated by Luxquanta) is one of several CV-QKD tracks, alongside QKISS and SEQRET.
Europe didn't pick a protocol winner. It's building a portfolio.
So why does CV-QKD get disproportionate strategic attention? Supply chain.
DV-QKD's highest-performance detectors are superconducting nanowire single-photon detectors (SNSPDs) - cryogenic, specialised, thin supplier base. ID Quantique in Geneva was Europe's flagship SNSPD manufacturer. Then IonQ acquired a controlling stake (announced Feb 2025, completed May 2025). Europe's most prominent single-photon detector company is now a US subsidiary.
Single Quantum in Delft is EU-owned but small. Pixel Photonics in Münster (€13.5M raised April 2026) is a newer entrant. Beyond that: Photec (China), Scontel (Russia), Photon Spot and Quantum Opus (US).
CV-QKD sidesteps this dependency. Its detection hardware: homodyne receivers, InGaAs photodiodes, balanced detectors; uses telecom-derived components that European industry manufactures at scale. Not off-the-shelf telecom gear (a secure CV-QKD receiver requires tight shot-noise calibration, excess-noise estimation, and security-specific DSP), but the manufacturing base is European.
QUARTERNEXT's alignment with PIXEurope (the EU's ~€400M photonic chip pilot line) makes the industrial logic explicit.
Now here's what makes it more complicated than a clean sovereignty narrative.
China's 10,000+ km quantum network (described in a 2025 npj Quantum Information paper) is hybrid. Four decoy-state BB84 systems on the backbone, two Gaussian-modulated CV-QKD systems in metro networks. They use InGaAs/InP avalanche detectors and upconversion detectors on the backbone - not SNSPDs. The "China chose DV, Europe chose CV" framing is wrong when you look at deployment evidence.
Both ecosystems are converging on multi-modality. The question isn't which protocol wins. It's who controls the component stack.
The security proof angle matters for the infosec crowd too. DV-QKD (decoy-state BB84) has two decades of finite-key, coherent-attack security proofs. CV-QKD's proof literature is younger and more active: composable security for Gaussian modulation established in 2022, coherent-attack proofs for discrete modulation improved substantially in Feb 2025. The photon-number cutoff assumption in CV-QKD proofs (infinite-dimensional Hilbert spaces require truncation for numerical analysis) is an active research area.
This matters because the EU's Nostradamus certification lab at JRC Ispra will need to evaluate CV-QKD products against these proofs. If the proofs carry unresolved assumptions, the certification carries them too. The pipeline from proof theory to certified product to procurement framework is where CV-QKD's practical future lives or dies.
For practitioners: PQC migration is still the action item. The regulatory deadlines are set. QKD is a specialised additional control for specific use cases with specific risk profiles. If you're in EU-regulated critical infrastructure, track the Nostradamus certification pipeline as it will shape procurement requirements. Insist on modality-neutral key management interfaces (ETSI GS QKD 004/014). Don't lock into one vendor or one QKD flavour.
Full analysis: https://postquantum.com/post-quantum/europe-cv-qkd-industrialisation/
#infosec #cybersecurity #quantum #QKD #PQC #cryptography #postquantum #EuroQCI
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"Europe chose CV-QKD for its quantum networks." I keep seeing this in quantum coverage. It's wrong, and the real picture is more interesting, and more relevant to infosec practitioners than it first appears.
EuroQCI, the EU's quantum communication infrastructure programme, funds six parallel industrial projects across three QKD modalities. eCAUSIS is explicitly building DV-QKD systems and a European DV-QKD supply chain. MDI-QUEEN is developing measurement-device-independent QKD. QUARTERNEXT (launched July 6, €10M, coordinated by Luxquanta) is one of several CV-QKD tracks, alongside QKISS and SEQRET.
Europe didn't pick a protocol winner. It's building a portfolio.
So why does CV-QKD get disproportionate strategic attention? Supply chain.
DV-QKD's highest-performance detectors are superconducting nanowire single-photon detectors (SNSPDs) - cryogenic, specialised, thin supplier base. ID Quantique in Geneva was Europe's flagship SNSPD manufacturer. Then IonQ acquired a controlling stake (announced Feb 2025, completed May 2025). Europe's most prominent single-photon detector company is now a US subsidiary.
Single Quantum in Delft is EU-owned but small. Pixel Photonics in Münster (€13.5M raised April 2026) is a newer entrant. Beyond that: Photec (China), Scontel (Russia), Photon Spot and Quantum Opus (US).
CV-QKD sidesteps this dependency. Its detection hardware: homodyne receivers, InGaAs photodiodes, balanced detectors; uses telecom-derived components that European industry manufactures at scale. Not off-the-shelf telecom gear (a secure CV-QKD receiver requires tight shot-noise calibration, excess-noise estimation, and security-specific DSP), but the manufacturing base is European.
QUARTERNEXT's alignment with PIXEurope (the EU's ~€400M photonic chip pilot line) makes the industrial logic explicit.
Now here's what makes it more complicated than a clean sovereignty narrative.
China's 10,000+ km quantum network (described in a 2025 npj Quantum Information paper) is hybrid. Four decoy-state BB84 systems on the backbone, two Gaussian-modulated CV-QKD systems in metro networks. They use InGaAs/InP avalanche detectors and upconversion detectors on the backbone - not SNSPDs. The "China chose DV, Europe chose CV" framing is wrong when you look at deployment evidence.
Both ecosystems are converging on multi-modality. The question isn't which protocol wins. It's who controls the component stack.
The security proof angle matters for the infosec crowd too. DV-QKD (decoy-state BB84) has two decades of finite-key, coherent-attack security proofs. CV-QKD's proof literature is younger and more active: composable security for Gaussian modulation established in 2022, coherent-attack proofs for discrete modulation improved substantially in Feb 2025. The photon-number cutoff assumption in CV-QKD proofs (infinite-dimensional Hilbert spaces require truncation for numerical analysis) is an active research area.
This matters because the EU's Nostradamus certification lab at JRC Ispra will need to evaluate CV-QKD products against these proofs. If the proofs carry unresolved assumptions, the certification carries them too. The pipeline from proof theory to certified product to procurement framework is where CV-QKD's practical future lives or dies.
For practitioners: PQC migration is still the action item. The regulatory deadlines are set. QKD is a specialised additional control for specific use cases with specific risk profiles. If you're in EU-regulated critical infrastructure, track the Nostradamus certification pipeline as it will shape procurement requirements. Insist on modality-neutral key management interfaces (ETSI GS QKD 004/014). Don't lock into one vendor or one QKD flavour.
Full analysis: https://postquantum.com/post-quantum/europe-cv-qkd-industrialisation/
#infosec #cybersecurity #quantum #QKD #PQC #cryptography #postquantum #EuroQCI
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Quantum Key Distribution (QKD) is, if not the most active area in Quantum, it's darn close to it. Why?
Quantum Key Distribution (QKD) enables two parties to produce a shared random and completely unbreakable secret key known only to them, which can then be used to secure communications by encrypting and decrypting messages.
This area of the Quantum ecosystem will very likely be the first to be commercialized on a broad scale. Learn more in this TechAptitude post: https://techaptitude.substack.com/p/why-all-the-fuss-about-quantum-key?r=vn8b8 #Quantum #Quantumcomputing #QuantumKeyDistribution #QKD #PQC #BB84 #QuantumPhysics #Cryptography #CryptographicKeys #TechAptitude
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Quantum Key Distribution (QKD) is, if not the most active area in Quantum, it's darn close to it. Why?
Quantum Key Distribution (QKD) enables two parties to produce a shared random and completely unbreakable secret key known only to them, which can then be used to secure communications by encrypting and decrypting messages.
This area of the Quantum ecosystem will very likely be the first to be commercialized on a broad scale. Learn more in this TechAptitude post: https://techaptitude.substack.com/p/why-all-the-fuss-about-quantum-key?r=vn8b8 #Quantum #Quantumcomputing #QuantumKeyDistribution #QKD #PQC #BB84 #QuantumPhysics #Cryptography #CryptographicKeys #TechAptitude
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Quantum Key Distribution (QKD) is, if not the most active area in Quantum, it's darn close to it. Why?
Quantum Key Distribution (QKD) enables two parties to produce a shared random and completely unbreakable secret key known only to them, which can then be used to secure communications by encrypting and decrypting messages.
This area of the Quantum ecosystem will very likely be the first to be commercialized on a broad scale. Learn more in this TechAptitude post: https://techaptitude.substack.com/p/why-all-the-fuss-about-quantum-key?r=vn8b8 #Quantum #Quantumcomputing #QuantumKeyDistribution #QKD #PQC #BB84 #QuantumPhysics #Cryptography #CryptographicKeys #TechAptitude
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Quantum Key Distribution (QKD) is, if not the most active area in Quantum, it's darn close to it. Why?
Quantum Key Distribution (QKD) enables two parties to produce a shared random and completely unbreakable secret key known only to them, which can then be used to secure communications by encrypting and decrypting messages.
This area of the Quantum ecosystem will very likely be the first to be commercialized on a broad scale. Learn more in this TechAptitude post: https://techaptitude.substack.com/p/why-all-the-fuss-about-quantum-key?r=vn8b8 #Quantum #Quantumcomputing #QuantumKeyDistribution #QKD #PQC #BB84 #QuantumPhysics #Cryptography #CryptographicKeys #TechAptitude
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Quantum Key Distribution (QKD) is, if not the most active area in Quantum, it's darn close to it. Why?
Quantum Key Distribution (QKD) enables two parties to produce a shared random and completely unbreakable secret key known only to them, which can then be used to secure communications by encrypting and decrypting messages.
This area of the Quantum ecosystem will very likely be the first to be commercialized on a broad scale. Learn more in this TechAptitude post: https://techaptitude.substack.com/p/why-all-the-fuss-about-quantum-key?r=vn8b8 #Quantum #Quantumcomputing #QuantumKeyDistribution #QKD #PQC #BB84 #QuantumPhysics #Cryptography #CryptographicKeys #TechAptitude
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Латвія та Литва створюють першу транскордонну квантову мережу в Балтії: проєкт Lat-LitQN виходить на новий етап
# #EuroQCI #LatLitQN #QKD #Tet
https://gizchina.net/2026/06/24/lat-litqn-baltic-quantum-communication-network/ -
Латвія та Литва створюють першу транскордонну квантову мережу в Балтії: проєкт Lat-LitQN виходить на новий етап
# #EuroQCI #LatLitQN #QKD #Tet
https://gizchina.net/2026/06/24/lat-litqn-baltic-quantum-communication-network/ -
New blog post "EuroQCI feedback: A simple idea for improving Europe's investments in data security." https://blog.cr.yp.to/20260619-euroqci.html This covers my reply to a European Commission survey that still seems to be open; maybe you have thoughts on it too. #qkd #quantumcrypto #euroqci #pqcrypto
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New blog post "EuroQCI feedback: A simple idea for improving Europe's investments in data security." https://blog.cr.yp.to/20260619-euroqci.html This covers my reply to a European Commission survey that still seems to be open; maybe you have thoughts on it too. #qkd #quantumcrypto #euroqci #pqcrypto
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New blog post "EuroQCI feedback: A simple idea for improving Europe's investments in data security." https://blog.cr.yp.to/20260619-euroqci.html This covers my reply to a European Commission survey that still seems to be open; maybe you have thoughts on it too. #qkd #quantumcrypto #euroqci #pqcrypto
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New blog post "EuroQCI feedback: A simple idea for improving Europe's investments in data security." https://blog.cr.yp.to/20260619-euroqci.html This covers my reply to a European Commission survey that still seems to be open; maybe you have thoughts on it too. #qkd #quantumcrypto #euroqci #pqcrypto
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New blog post "EuroQCI feedback: A simple idea for improving Europe's investments in data security." https://blog.cr.yp.to/20260619-euroqci.html This covers my reply to a European Commission survey that still seems to be open; maybe you have thoughts on it too. #qkd #quantumcrypto #euroqci #pqcrypto
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with new hw and ever improving sw mythos looks more like a dish of rice a roni, a red herring, sometimes ipo are disasters - hopefully they won't see big bump, the real middle ground for business is open source ai models - that is really what i am excited about - of course it will take 3-5 years for peak smb (and probably enterprise also) ai. two more turns of moore's law are going to make a big difference since we are in the fat part of the curve #qkd included
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with new hw and ever improving sw mythos looks more like a dish of rice a roni, a red herring, sometimes ipo are disasters - hopefully they won't see big bump, the real middle ground for business is open source ai models - that is really what i am excited about - of course it will take 3-5 years for peak smb (and probably enterprise also) ai. two more turns of moore's law are going to make a big difference since we are in the fat part of the curve #qkd included
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with new hw and ever improving sw mythos looks more like a dish of rice a roni, a red herring, sometimes ipo are disasters - hopefully they won't see big bump, the real middle ground for business is open source ai models - that is really what i am excited about - of course it will take 3-5 years for peak smb (and probably enterprise also) ai. two more turns of moore's law are going to make a big difference since we are in the fat part of the curve #qkd included
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with new hw and ever improving sw mythos looks more like a dish of rice a roni, a red herring, sometimes ipo are disasters - hopefully they won't see big bump, the real middle ground for business is open source ai models - that is really what i am excited about - of course it will take 3-5 years for peak smb (and probably enterprise also) ai. two more turns of moore's law are going to make a big difference since we are in the fat part of the curve #qkd included
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🔒 Oh, the irony! An article on "Quantum Cryptography" that's as #cryptic as the topic itself. Apparently, understanding #QKD requires more clearance than a James Bond mission. 🚀🔑
https://www.nsa.gov/Cybersecurity/Quantum-Key-Distribution-QKD-and-Quantum-Cryptography-QC/ #QuantumCryptography #JamesBond #Irony #TechNews #HackerNews #ngated -
🔒 Oh, the irony! An article on "Quantum Cryptography" that's as #cryptic as the topic itself. Apparently, understanding #QKD requires more clearance than a James Bond mission. 🚀🔑
https://www.nsa.gov/Cybersecurity/Quantum-Key-Distribution-QKD-and-Quantum-Cryptography-QC/ #QuantumCryptography #JamesBond #Irony #TechNews #HackerNews #ngated -
🔒 Oh, the irony! An article on "Quantum Cryptography" that's as #cryptic as the topic itself. Apparently, understanding #QKD requires more clearance than a James Bond mission. 🚀🔑
https://www.nsa.gov/Cybersecurity/Quantum-Key-Distribution-QKD-and-Quantum-Cryptography-QC/ #QuantumCryptography #JamesBond #Irony #TechNews #HackerNews #ngated -
🔒 Oh, the irony! An article on "Quantum Cryptography" that's as #cryptic as the topic itself. Apparently, understanding #QKD requires more clearance than a James Bond mission. 🚀🔑
https://www.nsa.gov/Cybersecurity/Quantum-Key-Distribution-QKD-and-Quantum-Cryptography-QC/ #QuantumCryptography #JamesBond #Irony #TechNews #HackerNews #ngated -
🔒 Oh, the irony! An article on "Quantum Cryptography" that's as #cryptic as the topic itself. Apparently, understanding #QKD requires more clearance than a James Bond mission. 🚀🔑
https://www.nsa.gov/Cybersecurity/Quantum-Key-Distribution-QKD-and-Quantum-Cryptography-QC/ #QuantumCryptography #JamesBond #Irony #TechNews #HackerNews #ngated -
Our paper “PQC‑Enhanced QKD Networks: A Layered Approach” from QCNC Kobe 🇯🇵 is now on arXiv: https://arxiv.org/abs/2604.05599
We show how WireGuard + QKD + PQC provide scalable end‑to‑end security over multi‑hop Quantum QKD networks – no trusted node, no key forwarding, no SDN,... needed – and introduce Arnika – Quantum secure VPN: https://github.com/arnika-project/arnika
#Quantum #Communication #QKD #PQC #WireGuard #ETSI014 #EUROQCI
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Ein neues Forschungsprojekt, das quantensichere Technologien für resiliente und nachhaltige Behördenkommunikation evaluiert und entwickelt, ist diese Woche gestartet. 💡🔑 Das Innsbruck Quantum Ethics Lab (IQEL) der @uniinnsbruck, an dem u.a. das DiSC administrativ beteiligt ist, ist Projektpartner.
Mehr dazu im 🧵👇 oder hier 👉: https://www.uibk.ac.at/de/newsroom/2026/behordenkommunikation-quantensicher-gestalten/
#Quantenkommunikation #Quantenethik #QKD #CyberSecurity #DigitalScience #FFG #BMF #DigitaleSouveränität #IQEL
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Ein neues Forschungsprojekt, das quantensichere Technologien für resiliente und nachhaltige Behördenkommunikation evaluiert und entwickelt, ist diese Woche gestartet. 💡🔑 Das Innsbruck Quantum Ethics Lab (IQEL) der @uniinnsbruck, an dem u.a. das DiSC administrativ beteiligt ist, ist Projektpartner.
Mehr dazu im 🧵👇 oder hier 👉: https://www.uibk.ac.at/de/newsroom/2026/behordenkommunikation-quantensicher-gestalten/
#Quantenkommunikation #Quantenethik #QKD #CyberSecurity #DigitalScience #FFG #BMF #DigitaleSouveränität #IQEL
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Ein neues Forschungsprojekt, das quantensichere Technologien für resiliente und nachhaltige Behördenkommunikation evaluiert und entwickelt, ist diese Woche gestartet. 💡🔑 Das Innsbruck Quantum Ethics Lab (IQEL) der @uniinnsbruck, an dem u.a. das DiSC administrativ beteiligt ist, ist Projektpartner.
Mehr dazu im 🧵👇 oder hier 👉: https://www.uibk.ac.at/de/newsroom/2026/behordenkommunikation-quantensicher-gestalten/
#Quantenkommunikation #Quantenethik #QKD #CyberSecurity #DigitalScience #FFG #BMF #DigitaleSouveränität #IQEL
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Ein neues Forschungsprojekt, das quantensichere Technologien für resiliente und nachhaltige Behördenkommunikation evaluiert und entwickelt, ist diese Woche gestartet. 💡🔑 Das Innsbruck Quantum Ethics Lab (IQEL) der @uniinnsbruck, an dem u.a. das DiSC administrativ beteiligt ist, ist Projektpartner.
Mehr dazu im 🧵👇 oder hier 👉: https://www.uibk.ac.at/de/newsroom/2026/behordenkommunikation-quantensicher-gestalten/
#Quantenkommunikation #Quantenethik #QKD #CyberSecurity #DigitalScience #FFG #BMF #DigitaleSouveränität #IQEL
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