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Okay.

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So now that we know that the normal file sharing services are not great when sharing sensitive files,

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even if they use end to end encryption.

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In this lecture, I want to show you a more private method to share files.

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Now this method is peer to peer.

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Now, remember we said the main problem was not about encryption, but it was the fact that our files

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were stored somewhere that we have no control on.

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So in the method that I'm going to show you in this lecture, our files will not be stored in a server

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that we don't control.

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It's going to be stored locally, it's going to be peer to peer.

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So the file will be shared from our computer to the computer of the person that we want to share the

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file with.

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It's going to use end to end encryption.

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It's going to benefit from the anonymity offered by the Tor network.

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Therefore, it's going to be more private and more anonymous.

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In this method, we're going to be using a tool called Onionshare.

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And to put this simply, the way this will work is it will create an onion service on your computer

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so others can access this onion service and download your file so you can think of it as if it's creating

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a dark web website on your local computer.

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And this website can only be used to download the files that you specify.

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To make this simpler, you can think of this the as the user that wants to download your file.

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And we all have seen this diagram of the Tor network and how when you try to access a hidden service,

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you go over three nodes.

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The user that you want to share the file with will end at an onion service that is sharing your file.

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And this onion service is running from your own local computer.

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So the file is shared directly from your computer and you can shut down this sharing service whenever

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you want, whenever you feel that you don't want to share the file anymore, or whenever you feel like

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your connection is being compromised.

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So as you can see in this example, we are not uploading our file to a server that we do not own or

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do not control.

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Therefore, it fixes the main issue with the method that I showed you with the Firefox service and it

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benefits from all of the encryption implemented by the Tor network.

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Therefore, it's more private, more secure and more anonymous.

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Now doing this is actually very, very simple entails.

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So let me show you.

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I'm back at my file manager.

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I have the picture or the file that I want to share right here.

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And all you have to do is right click this file and click on Share via Onionshare.

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As you can see, this will open the onion share window for you.

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You can see the file that I selected is already in here and you can click on Add files to add more files

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to share with a specific person and you can use the delete to delete files.

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Once you're happy with the files that you want to share, we're going to click on Start Sharing.

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And right now, when you see the yellow.in here, this means that Onionshare is creating and starting

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the onion service that will share the files for you.

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So you want to be patient with this.

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It might take some time.

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And once this is done, as you can see, the circle will turn green and you will see a link to a hidden

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service.

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So you can see this looks very, very similar to the links that we use when accessing Darknet websites.

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You can click on copy URL to copy it and then you can share this link with anybody that you want to

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share the file with.

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So you can send it via email or you can send it using an instant message.

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So I'm going to go to a second computer.

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We're going to pretend that this is the recipient computer.

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I'm going to paste the link in here.

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Now keep in mind this is a hidden service or an onion service link, so it can only be accessed using

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the Tor browser or using a computer that is configured to use the TOR network.

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So this service is only accessible within the TOR network.

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As you can see, once this loads, you will get a very simple page.

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It has the file name, it has the size, and if you click on download it will download the file for

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you and this will automatically go to the Tor browser directory.

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I'm going to click on Save and Perfect.

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The download is complete and we can verify this by going here.

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And as you can see, we have the image that we wanted to share.

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Now, if you actually go back to the computer that started sharing, you will see that in the status

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bar.

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It's telling us stopped sharing the file automatically because someone has downloaded the file.

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So now if anyone tries to access this link, this page will not load.

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Therefore, you have full control over the files that you want to share.

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You can start and stop sharing them any time you want.

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The files will not be placed in any computer that you do not have control on, so it will only be placed

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on your computer and you'll benefit from towards anonymity and privacy.

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Therefore, this is a much more private method of sharing sensitive files.