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Method for Secure Peer-to-peer File Sharing with Payment Disclosure Number: IPCOM000061729D
Original Publication Date: 2005-Feb-17
Included in the Prior Art Database: 2005-Feb-17

Publishing Venue



It is suggested to build peer-to-peer file sharing systems with an integrated payment scheme (P2PwIP). Such a system involves three types of participants: peers, (content) owners, and banks. Owners have accounts with the bank, and also provide the data items that peers may share. Peers can withdraw money from the banks, and may share the data provided by the owners. The system ensures that a peer can only access a shared data item if it pays a certain amount into the bank account of the corresponding owner. This must be guaranteed even if a fraction of the peers collude and try to cheat. Furthermore, the system is fully dynamic, i.e., peers may join and leave at any time, and owners may change the price for certain data items at any time. Finally, the system ensures the anonymity of the peers, i.e., it must be impossible to link the (digital) identity of a peer to the real identity of the user controlling the peer.