Trail of Bits: “Blockchain is not so decentralized, As it seems "" – Bits Media

Analysts Trail of Bits, security companies, specializing in the blockchain, They say, that 21% Bitcoin's nodes uses an outdated version of the Bitcoin Core client.

By order of the agency of promising research projects of the Ministry US defense (DARPA) Trail of Bits has prepared a report called “Lee Blockchains are decentralized?», in which the issues of vulnerability and risks of this technology are raised.

In particular, The company discovered, that outdated bitcoin nodes, Unencrypted network traffic and mining bullets, passing through a limited number of Internet providers, can enable various entities to get excessive centralized control over the network.

According to the report, Bitcoin's nodes are more responsible for the connection with the miners and the achievement of consensus, And most of the nodes do not make a significant contribution to the "Network Health".

Besides, Analysts say, what 21% Nodes on the network and completely use the outdated version of the Bitcoin Core client. According to experts, It is extremely important, so that all units of the distributed registry (DLT) worked on the same last version of the software, Otherwise, problems may arise, up to the outlet of the blockchain.

The authors of the report also found vulnerability in the infrastructure. The report says, that the traffic protocol is not encrypted, but 60% Network traffic passes only through three Internet providers, which gives them the opportunity to arbitrarily deteriorate and refuse to maintain any node.

Earlier billionaire Samuel Zell (Samuel Zell), Equity Group Investments, stated, that never invested in bitcoin, since without the support of the government this cryptocurrency is doomed to failure.