Clear and Present Data: Opaque Traffic and its Security Implications for the Future
Download: Paper (PDF)
Date: 24 Apr 2013
Document Type: Presentations
Additional Documents: Slides
Associated Event: NDSS Symposium 2013
Opaque, i.e., compressed or encrypted, traffic incurs high overhead for DPI engines yet often yields little useful information. Our experiments indicate that 89% of payload-carrying TCP packets are opaque. We provide a first step toward addressing the challenges presented by the abundance of opaque traffic by introducing new techniques for accurate real-time filtering of opaque packets in 16 bytes or less.