Integration Of Opentap With Quantum Entanglement Testbed For Security Analysis

OpenTap is a network traffic analysis tool tailored to remotely capture statistics from an Openflow switch. We have modified OpenTap for low latency packet capture of metadata which can be used for remote security analysis. We demonstrate the utility of this tool by capturing metadata from a quantum information testbed. Specifically, the testbed transmits photon data to a desktop using packets which OpenTap captures. We used a servo motor to periodically block the beam to create 20ms dips in the photon intensity, and then measured this intensity using two methods: via the metadata captured by OpenTap, and via the photon timestamps gathered by the quantum information testbed. Every photon intensity dip detected by the quantum information testbed was also detected using just the metadata; this indicates OpenTap can be used for remote real-time security analysis using packet metadata.