We download file **SafeOpener.java**

```
import java.io.*;
import java.util.*;
public class SafeOpener {
public static void main(String args[]) throws IOException {
BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
Base64.Encoder encoder = Base64.getEncoder();
String encodedkey = "";
String key = "";
int i = 0;
boolean isOpen;

while (i < 3) {
System.out.print("Enter password for the safe: ");
key = keyboard.readLine();

encodedkey = encoder.encodeToString(key.getBytes());
System.out.println(encodedkey);

isOpen = openSafe(encodedkey);
if (!isOpen) {
System.out.println("You have " + (2 - i) + " attempt(s) left");
i++;
continue;
}
break;
}
}

public static boolean openSafe(String password) {
String encodedkey = "cGwzYXMzX2wzdF9tM18xbnQwX3RoM19zYWYz";

if (password.equals(encodedkey)) {
System.out.println("Sesame open");
return true;
}
else {
System.out.println("Password is incorrect\n");
return false;
}
}
}
```

We see in the file with Base64 encoding and we notice the variable encodekey "cGwzYXMzX2wzdF9tM18xbnQwX3RoM19zYWYz"

echo "cGwzYXMzX2wzdF9tM18xbnQwX3RoM19zYWYz" |base64 --d =>Flag: XXXXXX_XXX_XX_XXXX_XXX_XXXX