Prevention of Illegal Content Sharing in Peer to Peer Systems

摘要

Now a days we are sharing large number of multimedia contents along with copyright protection. Assurance of proprietorship is needed because large increment in duplicates and to reduce illegal redistribution. Fingerprint mechanism is categorized in to three symmetric, asymmetric and anonymous. They have used traitor tracing protocol to identify illegal re-distributor. It uses complex graph to search for traitor tracing, and also it requires the participation of several honest buyers and anonymous communication through proxies. Drawbacks considered are justified by maintaining the transaction monitor and Symmetric Keys. Transaction monitor stores an encrypted version of the fingerprint for each buyer to trace an illegal re-distributor in the tracing protocol. Symmetric keys are maintained in the Data base and these Keys are not transmitted through proxies. For this all the user ought to be online. It is efficient and scalable fingerprint mechanism for p2p based fingerprinting system.