Mapping the Space of Network Privacy Solutions
Internet routing protocols were not designed for privacy. As a result, network communication metadata is exposed by default and available for collection by any network intermediary or eavesdropper. A number of solutions have been proposed to mitigate network privacy threats, typically involving routing traffic through various intermediaries rather than sending it directly. This includes the Lightning Network, Dandelion, VPNs and mixnets. This talk will review these solutions and discuss their privacy features as well as their limitations with respect to different network adversary models.