package p2p

// Peer is the interface that any network participant must implement.
// Both honest nodes and attackers implement this — the network doesn't know the difference.
type Peer interface {
	// Receive delivers a message to this peer (network layer).
	Receive(msg Msg)
	// ReceiveSync delivers a sync message (block sync protocol).
	ReceiveSync(msg Msg)
	// ShortID returns a short identifier for logging.
	ShortID() string
}