Hang With Your Buddies to Resist Intersection Attacks

  title={Hang With Your Buddies to Resist Intersection Attacks},
  author={David Wolinsky and Ewa Syta and Bryan Ford},
  booktitle={ACM Conference on Computer and Communications Security},
Some anonymity schemes might in principle protect users from pervasive network surveillance--but only if all messages are independent and unlinkable. Users in practice often need pseudonymity--sending messages intentionally linkable to each other but not to the sender--but pseudonymity in dynamic networks exposes users to intersection attacks. We present Buddies, the first systematic design for intersection attack resistance in practical anonymity systems. Buddies groups users dynamically into… CONTINUE READING
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