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layout | entry | tags | terms | summary | ||
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moneropedia | SSU |
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Secure Semi-reliable UDP: one of two Kovri transports |
The Basics
Secure Semi-reliable UDP is one of two encrypted @transports for @Kovri.
Similar to @NTCP, @SSU's primary purpose is to securely transmit @in-net @I2NP messages through @tunnels but, unlike @NTCP, @SSU functions solely over encrypted UDP.
In-depth information
- Like @NTCP, @SSU is a connection-oriented, point-to-point data transport
- Termed semi-reliable because @SSU will repeatedly retransmit unacknowledged messages (up to maximum number then dropped)
- @SSU also provides several unique services (in addition to its function as a @transport layer):
- IP detection (local inspection or with peer testing)
- NAT traversal (using introducers)
- Firewall status and, if implemented, @SSU can notify @NTCP if the external address or firewall status changes
Notes
For further details, read @Java-I2P's SSU