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Redistribution Centres

Traffic analysis is a potential problem. If both company A and company B are in the same encrypted multicast session, the fact that they are talking to each other may leak valuable information. To prevent this, trusted service providers may provide anonymous redistribution, using address mappings to prevent eavesdroppers from easily determining origin. In order to make traffic analysis more difficult, extra bogus traffic can be generated from the redistribution centre to hide the actual traffic patterns.