Pioneering secure quantum communication infrastructure as a key participant in the EuroQCI initiative, connecting the Baltics to Europe's quantum network.
Lithuania plays a strategic role in building Europe's sovereign quantum communication infrastructure, ensuring secure digital connectivity for the future.
As a key participant in the CEF-Digital EuroQCI initiative, Lithuania serves as a critical hub connecting the Baltic region to the wider European quantum network. Our involvement spans both terrestrial fiber-optic infrastructure and pioneering space-based quantum communication.
With strong political support and a clear national quantum technology agenda, Lithuania has established itself as a leader in quantum communication research and deployment, backed by world-class academic institutions and innovative industry partners.
Lithuania's quantum capabilities are built on a robust foundation of academic excellence, industry innovation, and strategic partnerships across multiple sectors.
KTU's Cybersecurity Centre of Excellence leads pioneering QKD research, including a 92 km quantum key exchange via LITNET and recent Toshiba QKD field measurements with Vilnius University (VU) on the Kaunas–Vilnius corridor.
Dynamic private sector featuring system integrators like UAB "Skaidula" and advanced commercial networks including Telia's high-capacity 800 Gb/s backbone infrastructure.
World-class manufacturers including Light Conversion, Ekspla, and Integrated Optics provide critical enabling technologies essential for quantum communication systems.
Innovative companies like Astrolight develop cutting-edge space-to-Earth laser terminals, positioning Lithuania as a leader in the space segment of EuroQCI.
VU, FTMC, and Novian Technologies unite to coordinate quantum efforts
Lithuania commits to pan-European quantum collaboration
Strategic roadmap for research, deployment, and post-quantum resilience
Lithuania is central to two major EuroQCI projects, establishing critical quantum communication links between the Baltic region and the wider European network.
A quantum-secure 200km fiber-optic link connecting Riga, Latvia, to Vilnius, Lithuania. This vital terrestrial corridor closes a regional gap in the EuroQCI network and enhances digital security along the EU's eastern border.
Trusted node in Panevėžys ensures secure key relay over long distances
Connecting Lithuania with Poland via the EAGLE-1 satellite, pioneering the integration of space and terrestrial quantum networks. A mobile Optical Ground Station in Poland securely distributes quantum keys to Lithuanian partners.
Hybrid architecture combining fiber and satellite for enhanced resilience
Concrete deliverables from the Lat-LitQN consortium: two peer-reviewed conference contributions and a Toshiba QKD field campaign on the KTU↔VU corridor, scoping a future Lithuania–Poland link.
Krušniauskas, Grigaliūnas, Brūzgienė · KTU Cyber Security Centre of Excellence
A five-dimensional descriptor 𝒞(a) = (V, Q, W, I, T) that maps every quantum-enabled attack by vector, required quantum capability, exploited weakness, impact, and temporal horizon — then ranks them via a composite risk score R(a) ∈ [0, 10].
Key finding: 67.2 % of generated traffic was critical-impact (I₂); the strongest predictor of risk is the exploited-weakness dimension (r = 0.846).
Krušniauskas, Grigaliūnas, Brūzgienė · KTU Cyber Security Centre of Excellence
First large-scale empirical comparison of X25519, ML-KEM-768, and the hybrid combo on an ESP32 (Xtensa LX6) TLS 1.3 client. 1,000 sessions per regime, joint timing / energy / failure-rate reporting.
ML-KEM-768 is faster and lower-energy than X25519 on Xtensa LX6 — small-modulus NTT maps to the 32-bit MAC unit. Reliability (not crypto cost) is the binding constraint; 3.8 % failures trace to a wolfSSL recv-buffer fragmentation bug.
KTU Cyber Security Centre of Excellence · Vilnius University
Live-fibre testing with the Toshiba Multiplexed QKD platform along the KTU↔VU corridor, characterising secret-key rate, QBER, and trusted-node behaviour to determine whether the segment can extend southward and bridge Lithuania to Poland.
Both contributions feed into the PQC tooling published at pqc.lt — a Lithuanian post-quantum cryptography knowledge hub.
A Post-quantum Assessment, Risk and Evolution Kernel based on the Mosca inequality (Tmig + Tshelf > Tthreat). It structures an organisation's PQC transition across five strategic axes: device shelf-life, migration time, data sensitivity, exposure surface, and compliance.
Quantum-Aware Risk Scoring — a companion calculator that produces a single migration-urgency score from the five PAREK axes. The IoT-QARS extension adds a sixth factor, φOH, that folds in measured handshake latency, energy, and connection-failure overhead on the target device.
Lithuania's quantum strategy emphasizes balanced development across core technological domains, from robust ground infrastructure to cutting-edge R&D and space-based communications.
Primary focus on building robust quantum-secure fiber infrastructure, including the 200km Latvia-Lithuania link and national network expansion.
Leveraging world-class photonics companies to develop advanced quantum components and maintain technological leadership in enabling technologies.
Forward-looking investment in satellite-based quantum communication, preparing for hybrid terrestrial-space network architectures.
Lithuania serves as a strategic hub connecting the Baltic region to Europe's quantum infrastructure through both terrestrial and satellite links, with KTU as the central coordination point.
Four-layer view: orbital QKD, terrestrial fiber, PQC bridge, and LTQGate access.
200 km quantum-secure dark-fibre backbone via Panevėžys trusted node.
Post-quantum cryptography overlay using ML-KEM / ML-DSA (FIPS 203/204) hybrid handshakes, carried over the existing fibre. Independent of QKD — protects classical traffic today against harvest-now-decrypt-later.
LTQGate is Kaunas's single entry point into the Lithuanian PQC bridge — distributing quantum-secure keys and post-quantum-protected channels to national subscribers.
Kaunas trusted node
(KTU Cyber Security CoE)