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OK so now that we have a basic understanding on how Bitcoins work and how crypto currencies work in

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general and the next lectures I want to walk you through how to use crypto currencies and specifically

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bitcoins anonymously on the Internet and on the darknet.

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Now first before we can do anything we have to create a wallet.

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What we mean by wallet is it's software that's going to hold our money or our crypto currency then we

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can use this wallet to send payments receive payments and so on.

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So you can think of it similar to the bank account that you get when you sign up with a bank or the

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dashboard that you get when you sign up with PayPal.

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Now there are a lot of web based wallets where you can access your currency online using a web browser.

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There are apps that you can get on your phones.

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And there are programs that you can install on your desktop computers.

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Now since we're using tales we're going to be using a wallet called Electronic that comes pre installed

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entails.

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This is very important because as we know Thales is alive operating system it's amnesiac.

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So if you install external programs you'll have to install them every time you start tales unless persistence

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is enabled.

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Another cool thing about electrons is it's really fast.

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It doesn't need to download the whole block chain which is pretty big.

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It uses an index version of it.

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So you can use it as soon as you download or launched the program and the wallets that you create with

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electrons can be used from separate computers.

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So for example if you destroy your tells build you can just go to another tells and be able to restore

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your account and I'll show you how to do that later on in the course.

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Now let's go to Thales and all of this will become much easier to understand as we do this practically

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so the like I said electron comes to pre installed with tails so you don't need to install it and you

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can access it by going to applications Internet and click on electron Now recently a very dangerous

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vulnerability was discovered in a previous version of electron but this version was shipped with tails.

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And even though tails has been updated multiple times since that version electron did not get updated

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because the latest version of electrons still doesn't have a they've been built which is what tails

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is built on.

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So in this lecture I'm going to show you how to manually install the latest version of electron and

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in the next lecture we're actually going to use it now for you in your case.

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You can launch it from here and follow what I'm going to show you in the next lecture.

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If the program gets stuck then that means tells still doesn't include the latest version of electron

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and you'll have to come back to this lecture and install the latest version as I'm going to show you

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right now.

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Now to download the latest version of electrons you need to go to their Web site electron dot org.

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I'll include that in the resources.

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We're going to go to download and we're going to select the Linux image the app image right here one

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click and we're going to click on Save File and this will automatically be stored in our Tor Browser

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directory.

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That's fine.

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And I'm going to click on Save and this will start downloading it for me.

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I'm also going to download the signature right here.

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So I'm going to right click this and save link as.

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And again this is going to my Tor Browser directory.

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I'm going to click on Save and I'm going to scroll down and I'm going to download the developers public

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key by right clicking save link as.

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And again it's going to go into my downloads and I'm going to click on Save.

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The reason why I downloaded the signature for the installer and the public key of the developer Thomas

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is because like I explained earlier when you download something from the Internet it can be modified

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by a number of entities.

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Therefore were you we downloaded the signature and we downloaded the public key of the developer and

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we're going to use the public key of the developer and the signature to verify that the file has not

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been tampered with since we downloaded it.

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Since that developer signed it I've actually explained how this works in details in my encryption section.

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So go back and revise that if this sounds a little bit vague.

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But basically right now I'm pretty sure the downloads are over and if we go to my tour browser directory

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you'll see I have the program itself.

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This is electronic this is the executable and we also have the signature for this program that has the

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exact same name as the program with the DOT AFC extension and I have Thomas V that a c file which is

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the public key of the developer that made this program.

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So before I can do anything I have to import this key right here to my key chain.

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And I showed you how to do that before so I'm going to do it quickly.

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I'm going to go through my applications.

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I'm going to go to passwords and keys I'm gonna go to file import and I'm going to select the file which

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is in my Tor Browser and it's this file right here Thomas V that a C click on open.

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Verify the details click on import.

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And this will import is key for me and to verify that I can go here and just look for a thermos.

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And as we can see we have the developer key in here.

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So now now that we have the key added We can click on the signature right click it and open with verify

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signature.

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And this will give us a positive result.

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If this executable right here did not get modified since Thomas the guy with the key has created this

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executable.

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So we're going to click on verify.

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And as you can see it's telling us that this is valid.

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And like I explained before don't worry about the untrusted part as long as it says it's valid.

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This means that the file did not get modified since it got signed by Thelma's.

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So now we can go ahead and run this file and not worry about it because we know the file did not get

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modified since Thomas signed it.

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But before we do that I'm actually going to copy this and I'm gonna put it in my persistent directory.

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So I'm going to right click here and paste.

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And the reason why I'm doing this because like we know Thales is live it's amnesiac.

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So every time we restart all the files will be lost unless they are stored in the persistent directory.

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Now if you don't have the persistent directory that means persistence is not enabled for you.

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I covered this previously in the course.

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So please go back to that lecture and see how to enable this now.

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Also before using electron I'm going to go to applications and tales we're going to click on configure

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persistence.

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I did cover this before but I want you to make sure that personal data is enabled and if we scroll down

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Bitcoin client is enabled as well.

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And the reason why we need these settings.

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So when we create a wallet the wallet information will be stored on this computer.

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So when we restart we won't have to restore the wallet every time.

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We'll just have to put the password.

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So I'm going to close this because everything is configured properly for me.

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And one last step because I can run executable on tails.

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This is a security measure that comes with tails.

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You'll need to right click the file go to its properties go to permissions and you need to check this

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box that says allow executing file as program.

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We're going to close this.

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And now every time you want to run electronic.

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Don't go to applications Internet com to persistence and double click this executable.

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Now as you can see the program has started now.

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It doesn't have any wallets.

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That's why it's not asking us for a password or anything.

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But right now it's ready to be used.

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And in the next lecture I'm going to walk you through the basics of this program and we're going to

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create our first bitcoin wallet.