Research
Peer-reviewed publications and preprints. Short summaries and details visible in detailed view (on click).
Topology-Oblivious Random-Walk Key Relaying in Quantum Key Distribution Networks
2026
Krišjānis Petručeņa, Sergejs Kozlovičs, Juris Vīksna, Elīna Kalniņa, Reinis Isaks, Edgars Celms, Lelde Lāce, Edgars Rencis. Preprints.
A preprint on decentralized random-walk-based key relaying strategies in QKD networks.The Butterfly Protocol: Secure Symmetric Key Exchange and Mutual Authentication via Remote QKD Nodes
2026
Sergejs Kozlovičs, Elīna Kalniņa, Juris Vīksna, Krišjānis Petručeņa, Edgars Rencis. Symmetry.
A protocol design for symmetric key exchange and mutual authentication using remote QKD nodes.Integrating Remote Quantum Random Number Generator as a Shared Resource into GNU/Linux via D-Bus
2025
Krišjānis Petručeņa, Sergejs Kozlovičs, Elīna Kalniņa, Edgars Rencis, Juris Vīksna, Edgars Celms, Lelde Lāce. ACM Transactions on Privacy and Security.
A Linux-first integration of remote QRNG entropy via D-Bus, designed for secure multi-client consumption.Integration of PQC and QKD: Applications, Challenges and Implementation Frameworks
2025
Elina Kalnina, Rihards Balodis, Edgars Celms, Sergejs Kozlovics, Inara Opmane, Krišjānis Petručeņa, Edgars Rencis, Juris Viksna. Conference proceedings.
A framework-oriented view on combining PQC and QKD in hybrid quantum-safe systems.An Information-Theoretically Secure QKD Protocol for One-Time Pad Encryption
2025
Sergejs Kozlovičs, Krišjānis Petručeņa, Juris Vīksna. Conference proceedings.
A QKD protocol intended for one-time pad usage with information-theoretic security goals.Towards Quantum Telecommunications: Point of View of the Implementation Task of the Experimental Quantum Key Distribution Backbone Deployment Project
2024
Inara Opmane, Rihards Balodis, Arvils Bulavs, Edgars Celms, Elina Kalnina, Rita Kucinska, Arturs Medenis, Sergejs Kozlovics, Krišjānis Petručeņa, Edgars Rencis, Juris Viksna. Frontiers in Artificial Intelligence and Applications.
Implementation-centric perspective on deploying an experimental QKD backbone.Hybrid QKD-based framework for secure enterprise communication system
2024
Edgars Rencis, Juris Vīksna, Sergejs Kozlovičs, Edgars Celms, Dāvis Jānis Lāriņš, Krišjānis Petručeņa. Procedia Computer Science.
A hybrid QKD-oriented architecture for enterprise-grade secure communications.Quantum Key Distribution as a Service and Its Injection into TLS
2023
Sergejs Kozlovičs, Krišjānis Petručeņa, Dāvis Lāriņš, Juris Vīksna. Conference proceedings.
A service-oriented approach for injecting QKD key material into TLS workflows.