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Manual: Link Establishment in Detail ↗

A link is a special destination type that provides a bidirectional, encrypted communication tunnel between two nodes, over any number of hops.

It provides initiator anonymity, forward secrecy and more efficient encryption, and enables easy request-response messaging, large data transfers (resources) and more.cite-ref-0-1-0[1]

Links are very efficient. The total bandwidth cost of setting up a link is 3 packets (297 bytes) while the cost of keeping a link alive is 0.45 bits/second.cite-ref-0-1-1[1]

Contents

• Usage

• See also

• References

Usage

With RNS:

# Initiator

link = RNS.Link(destination)

link.set_packet_callback(initiator_packet_received)

link.set_link_established_callback(initiator_link_established)

link.set_link_closed_callback(initiator_link_closed)

# Responder

def client_connected(link):

link.set_packet_callback(responder_packet_received)

link.set_link_closed_callback(responder_link_closed)

link.set_remote_identified_callback(remote_identified)

For a more comprehensive use case, see the Link example in the manual.