On of the pros of Bitcoin since its birth is that it’s a public ledger, anyone
is allowed to send and receive payments and data on the Blockchain. However,
Bitcoin’s network does not provide a way of encrypting communication between
nodes, which allows manipulation of data, mass surveillance and analysis of its
Although encrypted communication is currently a possibility with VPNs, TOR or other
mechanisms, it is not easy for the average user to setup such a connection.
There is BIP draft called BIP151
that aims to add encrypted communication to Bitcoin’s network and which currently seems implemented only by Armory.
When blocks return to their maximum capacity, we will have normalized data for
making better comparisons. StopAndDecrypt describes this as “an efficiency
floor of 1-2 seconds and delay may no longer be the scaling bottleneck”.