10

An eclipse attack is when most (if not all) of your peers are malicious and they basically prevent you from being well-connected to the network to obtain information about transactions you're interested in. An eclipse attack is particular useful when a payer has sent some bitcoins to you in some transaction, then decides to also doublespend the same bitcoins....


1

A sybil attack is prevented by using proof of work. Overwhelming the network with nodes cannot substitute for the hash power required to create the proof of work that must be presented in order to get the network to accept a new block. An eclipse attack is more difficult to prevent: Bitcoin Core only makes an outbound connection to one IP address per /...


1

In a sybil attack, the attacker impersonates multiple identities. In an eclipse attack, the attacker eclipses a victim from the network. That means the attacker basically controls which information the victim is able to send to the network and vice versa. I would therefore say that a sybil attack is what an adversary uses in order to perform an eclipse ...


Only top voted, non community-wiki answers of a minimum length are eligible