Bell’s inequality, random sequence, and quantum key distribution

Random Key Pre-Distribution Techniques against Sybil Attacks

Sybil attacks pose a serious threat for Wireless Sensor Networks (WSN) security. They can create problems in routing, voting schemes, decision making, distributed storage and sensor re-programming. In a Sybil attack, the attacker masquerades as multiple sensor identities that are actually controlled by one or a few existing attacker nodes. Sybil identities are fabricated out of stolen keys, obt...

A random quantum key distribution by using Bell states

We proposed a new scheme for quantum key distribution based on entanglement swapping. By this protocol Alice can securely share a random quantum key with Bob, without transporting any particle.

Coherent State Quantum Key Distribution Without Random Basis Switching

The random switching of measurement bases is commonly assumed to be a necessary step of quantum key distribution protocols. In this paper we show that switching is not required for coherent state continuous variable quantum key distribution. We show this via the no-switching protocol which results in higher information rates and a simpler experimental setup. We propose an optimal eavesdropping ...

Mitigating Node Capture Attack in Random Key Distribution Schemes through Key Deletion

Random Key Distribution (RKD) schemes have been widely accepted to enable low-cost secure communications in Wireless Sensor Networks (WSNs). However, efficiency of secure link establishment comes with the risk of compromised communications between benign nodes by adversaries who physically capture sensor nodes. The challenge is to enhance resilience of WSN against node capture, while maintainin...

Quantum Key Distribution