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Bit coin is a decentralized P2P digital currency in which coins are generated by a distributed set of miners and transactions are broadcasted via a peer-to-peer network. While Bit coin provides some level of anonymity (or rather pseudonymity) by encouraging the users to have any number of random-looking Bit coin addresses, recent research shows that this level of anonymity is rather low. This encourages...
This paper presents Riposte, a new system for anonymous broadcast messaging. Riposte is the first such system, to our knowledge, that simultaneously protects against traffic-analysis attacks, prevents anonymous denial-of-service by malicious clients, and scales to million-user anonymity sets. To achieve these properties, Riposte makes novel use of techniques used in systems for private information...
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