UDP Transport: compress, encrypt and send any data reliably over unreliable UDP connections
UDP Transport
Compresses, encrypts and transfers data between a sender and receiver using UDP protocol.
go get github.com/balacode/udpt
This demo starts a Receiver which listens for incoming data, then sends a "Hello World" to the receiver using Sender.SendString().
package main
import (
"fmt"
"github.com/balacode/udpt"
)
// main demo
func main() {
// secret encryption key shared by the Sender and Receiver
cryptoKey := []byte("aA2Xh41FiC4Wtj3e5b2LbytMdn6on7P0")
//
// set-up and run the receiver
rc := udpt.Receiver{Port: 9876, CryptoKey: cryptoKey,
Receive: func(k string, v []byte) error {
fmt.Println("Received k:", k, "v:", string(v))
return nil
}}
go func() { _ = rc.Run() }()
//
// send a message to the receiver
err := udpt.SendString("127.0.0.1:9876", "main", "Hello World!", cryptoKey)
if err != nil {
fmt.Println("failed sending:", err)
}
rc.Stop()
} // main
This is a new project and its use of cryptography has not been reviewed by experts. While I make use of established crypto algorithms available in the standard Go library and would not "roll my own" encryption, there may be weaknesses in my application of the algorithms. Please use caution and do your own security asessment of the code. At present, this library uses AES-256 in Galois Counter Mode to encrypt each packet of data, including its headers, and SHA-256 for hashing binary resources that are being transferred.
This project is in its DRAFT stage: very unstable. At this point it works, but the API may change rapidly.