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In the previous lecture we learned that tour is on an amazing network that we can use in order to protect

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our anonymity and privacy.

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We learned that it works because it has a number of computers or nodes connected to the network.

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And then when we send data through the network it will bounce over a minimum of three nodes before it

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goes to the destination.

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Now I also mentioned in the previous lecture that Tor allows connected devices to host or to offer services.

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Now these services can be a simple Web site and because these Web sites are connected to tour they will

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benefit from the anonymity that Tor offers and therefore they're usually referred to as Tawhid in services

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or online services.

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So this diagram right here would usually look more like this in real life.

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So you'd have some nodes or relays which you can use in order to go to a certain destination on the

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Internet.

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But at the same time some of the connected nodes or some of the connected devices are actually acting

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as online services.

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So these are similar to normal Web sites that you see on the Internet but they exist within the Tor

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network.

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They also use a really smart Protocol developed by Tor which is designed to hide the identity of this

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server offering the service and the client trying to access the service.

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So whenever you try to access a tor service at any point of time both the client and the server offering

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the service do not know where or who the other party is.

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So let's say instead of trying to go to Google dot com you try to go to this online service right here.

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What's going to happen is you're going to connect to the TOR network again connection right here is

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not encrypted by tor but the ISP like I said the Internet service provider or any other entity trying

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to censor your connection.

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They want to be able to see that you're trying to access an online service.

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They'll only be able to see that you're connecting to the terror network.

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Then once you're in the network you're going to bounce your request over a random node you're going

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to go to a second random node.

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And finally instead of go into a third node then out to the Internet to another Web site on the Internet.

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On the surface web you're going to stay within the Tor network and you're literally just going to go

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to your online service.

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Now whenever you try to communicate or connect to an online service the process is actually much more

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complex than what's shown in this diagram.

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It is done over a really smart protocol that is developed by tor so that when you connect to an online

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service you want to be able to see or get information about the server offering this service at the

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same time the server offering the online service or the hidden service will not be able to get information

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about you regarding your location or anything that can identify you.

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Again all of this done in order to protect the privacy and anonymity of both the server offering the

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service and the user.

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Now in the next lecture I'm going to show you how to connect to Tor how to access a hidden service and

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you'll be able to understand this better.