Implementation of a Wireless Time Distribution Testbed Protected with Quantum Key Distribution

Secure time transfer is critical for many time- sensitive applications. The Global Positioning System (GPS) which is often used for this purpose has been shown to be susceptible to spoofing attacks. Quantum Key Distribution (QKD) offers a way to securely generate encryption keys at two locations. Through careful use of this information it is possible to create a system that is more resistant to spoofing attacks. In this paper we describe our work to create a testbed which utilizes QKD to distribute secure one-time pad keys for traditional RF links. This testbed will be used for the development of more secure and spoofing resistant time distribution protocols.