Quantum key distribution (QKD) constitutes a symmetric secret key negotiation protocol
capable of maintaining information-theoretic security. Given the recent advances in QKD …

Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …

Quantum key distribution (QKD) promises unconditional security in data communication and
is currently being deployed in commercial applications. Nonetheless, before QKD can be …

Quantum cryptography founded on the laws of physics could revolutionize the way in which
communication information is protected. Significant progresses in long-distance quantum …

In this work, we present a reliable, efficient, and tight numerical method for calculating key
rates for finite-dimensional quantum key distribution (QKD) protocols. We illustrate our …

In the quantum version of a Trojan-horse attack, photons are injected into the optical
modules of a quantum key distribution system in an attempt to read information direct from …

The problem of implementation security in quantum key distribution (QKD) refers to the
difficulty of meeting the requirements of mathematical security proofs in real‐life QKD …

Quantum networks hold the promise of enabling secure and trustworthy communication and
computation. However, they also pose significant challenges in terms of security, privacy …

With the emergence of an information society, the idea of protecting sensitive data is steadily
gaining importance. Conventional encryption methods may not be sufficient to guarantee …