The communication in the Bitcoin network could soon be significantly data more economical. The authors of the Paper “bandwidth-efficient transaction relay in Bitcoin” have developed with Erlay an approach that can reduce the data flow in the Bitcoin network significantly.
By Christopher clover
4. June 2019BTC$8.002,00 -5.12%part Facebook Twitter LinkedIn xing mail
Bitcoin has the reputation to be very resistant to Hacker attacks. This is mainly due to the fact that Bitcoin hackers does not provide a Central point of attack, in the Form of a single server. Instead, several Thousand network nodes (Nodes), the Bitcoin Protocol and the associated transaction history (i.e. the Blockchain) are home to the world.
Before a BTC-lands Transfer in the Blockchain, it must be made of the network nodes is known. This is done by a Node that has received the announcement of a Bitcoin transaction, this gives to each of its neighboring nodes in the Bitcoin network. This type of Information bears the name of Flooding (Flood). In this way, the Information moves through the entire Bitcoin network. The latter currently consists of about 60,000 controllable Nodes – 6,000 of which Full Nodes are. Full Nodes bear your name, because you can save permanent, the entire Bitcoin Blockchain, with the network sync and geminte blocks on your validity check. A Full Node in the Bitcoin default configuration over 125 channels (Ports). Of these eight serve as a maximum outgoing channels of the routing information to the neighboring network node. Private Nodes have only outbound channels (Outbound Ports).
Redundant in the Bitcoin network
Now the main problem of the Floodings is its lack of efficiency. Thus, each Node learns the network is equal to a multiple of a planned transactions. This redundancy is reflected in a disproportionately large data traffic. The authors of the Paper “bandwidth-efficient transaction relay in Bitcoin” have developed “Erlay” an approach, the redundant data can reduce traffic on the Bitcoin network.
Instead of each transaction on each Link, a node that uses our Protocol to announce [announced] [to a transaction], if a subset of Peers – it’s called Low-Fanout Flooding. To ensure that all transactions reach the entire network, the node regularly to an interactive Protocol to detect missed announcements and missing transactions. [This] is referred to as calibration [Set Reconciliation].
The combination of Low-Fan-Flooding, and the Set Reconciliation resulted in the simulated test environment to the researchers to significant savings in the Bitcoin traffic. In the practice Test with 100 Nodes Erlay significant efficiency was able to achieve increases.
with The current Bitcoin Protocol, the data traffic increases proportionally with the number of Connections of the Nodes. Erlay allows an increase of the connectivity at a consistently low volume of data. More Connections per Node make the network considered by the authors to be more robust against attacks. However, the researchers are working on an implementation of Erlay for BTC Core Nodes. For this, the researchers ask the BTC-community of developers currently Feedback.
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