Steganography in Golang

main.go

package main

import (
	"bufio"
	"bytes"
	"fmt"
	"image/jpeg"
	"image/png"
	"log"
	"os"

	"github.com/auyer/steganography"
)

func Encode() {
	inFile, _ := os.Open("/home/buroz/Pictures/95e46aa5-0849-4fec-83f6-0049926eb5d9.jpeg") // opening file
	reader := bufio.NewReader(inFile)                                                      // buffer reader
	img, _ := jpeg.Decode(reader)                                                          // decoding to golang's image.Image

	w := new(bytes.Buffer)                                                   // buffer that will recieve the results
	err := steganography.Encode(w, img, []byte("This is a secret message!")) // Encode the message into the image
	if err != nil {
		log.Printf("Error Encoding file %v", err)
		return
	}
	outFile, _ := os.Create("out_file.jpeg") // create file
	w.WriteTo(outFile)                       // write buffer to it
	outFile.Close()

}
func main() {
	inFile, _ := os.Open("./out_file.jpeg") // opening file
	defer inFile.Close()

	reader := bufio.NewReader(inFile) // buffer reader
	img, _ := png.Decode(reader)      // decoding to golang's image.Image

	sizeOfMessage := steganography.GetMessageSizeFromImage(img) // retrieving message size to decode in the next line

	msg := steganography.Decode(sizeOfMessage, img) // decoding the message from the file
	fmt.Println(string(msg))

}