Receive Wifi SSID and send Password in a Secure way with Unity 3D

Project Requirements
- For this more smaller project no milestone is provided
- You must provide the whole project before the project is accomplished

Short description
- Write a program with Unity 3D where machine 1 receives a Wifi SSID from machine 2 and sends back a password

Technical Requirements
- The App on machine 1 is a Unity 3D App with C# Scripts.
- The App on machine 1 must be platform independent. It must work on Windows, MacOs iPadOs, iOs and Android. You only need to test on your machine
- All communications must use wifi

Stepwise description
1. App on machine 1 sends a request via Wifi to machine 2
a. This request is a simple command word
2. App on machine 2 receives the command word and then sends a list with all available SSIDs
a. The SSIDs you don't actually scan. It is a static string list with random examples.
b. The SSID list must be sent in a secure way. It must be state of the art for a commercial product.
3. App on machine 1 receives the list and converts it into usable list.
a. From this SSID list the user chooses one item
b. The user then enters the password
i. Entered characters are displayed with non readable signs like ***** or other signs on default
ii. The user can choose to display readable. So the entered password is readable
4. The choosen SSID and Password then has to be send secure to machine 2. It must be state of the art for a commercial product.
5. Machine 2 must receive SSID and password and convert it to usable strings
a. For this project there is no need to establish a wifi connection