An Information-Theoretically Secure QKD Protocol for One-Time Pad Encryption
| Accepted | October 2025 |
|---|---|
| Authors | Sergejs Kozlovičs, Krišjānis Petručeņa, Juris Vīksna |
| Venue | Conference proceedings |
| DOI | 10.1007/978-3-032-01823-6_12 |
Quantum Key Distribution (QKD) protocols provide shared secret keys using classical and quantum communication, but widely used protocols still depend on an authenticated classical channel based on pre-shared keys and stream ciphers. This paper introduces a novel information-theoretically secure QKD protocol (KPV25) that avoids this limitation and generates a shared authenticated bitstream suitable for one-time pad (OTP) encryption. The proposed design targets end-to-end information-theoretic security for both key establishment and resulting OTP use.