Hidden Communication in P2P Networks: Steganographic Handshake and Broadcast

Date Added: Mar 2011
Format: PDF

The authors consider the question of how a conspiring subgroup of peers in a p2p network can find each other and communicate without provoking suspicion among regular peers or an authority that monitors the network. In particular, the authors look at the problem of how a conspirer can broadcast a message secretly to all fellow conspirers. As a sub-problem of independent interest, they study the problem of how a conspirer can safely determine a connected peer's type, i.e., learning whether the connected peer is a conspirer or a regular peer without giving away its own type in the latter case.