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Go library for the I2P SAMv3.0 bridge, used to build anonymous/pseudonymous end-to-end encrypted sockets.

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README

go library for the I2P SAMv3.0 bridge, used to build anonymous/pseudonymous end-to-end encrypted sockets.

This library is much better than ccondom (that use BOB), much more stable and much easier to maintain.

Support/TODO

What works:

  • Utils
    • Resolving domain names to I2P destinations
    • .b32.i2p hashes
    • Generating keys/i2p destinations
  • Streaming
    • DialI2P() - Connecting to stuff in I2P
    • Listen()/Accept() - Handling incomming connections
    • Implements net.Conn and net.Listener
  • Datagrams
    • Implements net.PacketConn
  • Raw datagrams
    • Like datagrams, but without addresses

Does not work:

  • Everything works! :D
  • Probably needs some real-world testing

Documentation

  • Latest version-documentation:
    • set your GOPATH
    • Enter godoc -http=:8081 into your terminal and hit enter.
    • Goto http://localhost:8081, click packages, and navigate to sam3

Examples

package main

import (
	"github.com/majestrate/i2p-tools/sam3"
	"fmt"
)

const yoursam = "127.0.0.1:7656" // sam bridge

func client(server I2PAddr) {
	sam, _ := NewSAM(yoursam)
	keys, _ := sam.NewKeys()
	stream, _ := sam.NewStreamSession("clientTun", keys, Options_Small)
	fmt.Println("Client: Connecting to " + server.Base32())
	conn, _ := stream.DialI2P(server)
	conn.Write([]byte("Hello world!"))
	return
}

func main() {
	sam, _ := NewSAM(yoursam)
	keys, _ := sam.NewKeys()
	go client(keys.Addr())
	stream, _ := sam.NewStreamSession("serverTun", keys, Options_Medium)
	listener, _ := stream.Listen()
	conn, _ := listener.Accept()
	buf := make([]byte, 4096)
	n, _ := conn.Read(buf)
	fmt.Println("Server received: " + string(buf[:n]))
}

The above will write to the terminal:

Client: Connecting to zjnvfh4hs3et5vtz35ogwzrws26zvwkcad5uo5esecvg4qpk5b4a.b32.i2p
Server received: Hello world!

Error handling was omitted in the above code for readability.

Testing

  • go test runs the whole suite (takes 90+ sec to perform!)
  • go test -short runs the shorter variant, does not connect to anything

License

Public domain.

Author

  • Kalle Vedin kalle.vedin@fripost.org
  • Unknown Name (majestrate)

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Go library for the I2P SAMv3.0 bridge, used to build anonymous/pseudonymous end-to-end encrypted sockets.

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