To better understand the limits of current traffic analysis techniques and threats and potential defenses, the investigators have developed a program of research to find an analytical approach to modeling both the flow linking and information leakage as well as potential practical methods for covert communication using packet timings. The theoretical findings of the investigators are being validated by use of measurements of real-world traffic and deployment of a timing traffic analysis testbed (TTAT). The equipment provided by this award is being used to create very realistic traffic environments. We are injecting reference traffic into the generated mix, and validating our analytic models of timing by instrumentation of the reference traffic. Prof. Todd P. Coleman is principal investigator on this work, with Sanders, Negar Kiyavash, and David M. Nicol as co-PIs.
(Funded by AFRL)