TARANET: Traffic-Analysis Resistant Anonymity at the Network Layer - PowerPoint PPT Presentation

Resisting active traffic analysis Packet dropping � 11

Resisting active traffic analysis Packet dropping � 11

Resisting active traffic analysis Packet dropping • Duplicate packets � 11

Resisting active traffic analysis Packet dropping • Duplicate packets • Create new packets � 11

Resisting active traffic analysis Packet dropping • Duplicate packets • Create new packets • Sender send more? � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting � 11

Resisting active traffic analysis Packet dropping packet splitting When is packet splitting done? � 11

Resisting active traffic analysis Packet dropping packet splitting When is packet splitting done? • Sender includes splittable packets � 11

Resisting active traffic analysis Packet dropping packet splitting When is packet splitting done? • Sender includes splittable packets • … for each AS on the path � 11

Resisting active traffic analysis Packet dropping packet splitting When is packet splitting done? • Sender includes splittable packets • … for each AS on the path • … at random intervals � 11

Packet splitting R MAC R MAC R MAC R MAC R Payload MAC How does splitting work concretely? � 12

Packet splitting R MAC R MAC R MAC R MAC R Payload MAC How does splitting work concretely? � 12

Packet splitting R MAC R MAC R MAC R MAC R Payload MAC � 12

Packet splitting R MAC R MAC R MAC R MAC R Payload MAC � 12

Packet splitting R MAC R MAC R MAC R MAC R Payload MAC � 12

Packet splitting R MAC R MAC R R MAC MAC R MAC R MAC R Payload MAC � 12