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Kademlia is a widely successful Distributed Hash Table (DHT) implementation, better known for its use in the BitTorrent protocol. In this paper, we revisit its overlay management separately from the DHT operations to allow it to be used with other distributed abstractions by providing an accurate and consistent view of the k-closest nodes to any given identifier. We then present invariants that avoid...
Communication through the Internet raises privacy and confidentiality concerns. Protocols such as HTTPS may be used to protect the communication, but occasionally vulnerabilities that may allow snooping on packet content are discovered. To address this issue, we present MACHETE, an application-layer multi-path communication mechanism that provides additional confidentiality by splitting data streams...
The Border Gateway Protocol (BGP) plays a critical role in the Internet providing connectivity to hosts across the world. Unfortunately, due to its limited security, attackers can hijack traffic by generating invalid routes. Some detection systems for route hijacking have been presented, but they require non-public information, high resources, or can easily be circumvented by attackers. We propose...
Dynamic networks, in particular Delay Tolerant Networks (DTNs), are characterized by a lack of end-to-end paths at any given instant. Because of that, DTN routing protocols employ a store-carry-and-forward approach, holding messages until a suitable node to forward them is found. But, the selection of the best forwarding node poses a considerable challenge. Additional network information (static or...
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