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8df03de3e9
If multiple blinded paths are provided, they will each have a different pub key for the destination node. This makes using our existing pathfinding logic tricky since it depends on having a single destination node (characterised by a single pub key). We want to re-use this logic. So what we do is swap out the pub keys of the destinaion hop with a pseudo target pub key. This will then be used during pathfinding. Later on once a path is found, we will swap the real destination keys back in so that onion creation can be done.
routing
The routing package implements authentication+validation of channel announcements, pruning of the channel graph, path finding within the network, sending outgoing payments into the network and synchronizing new peers to our channel graph state.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/routing