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Now that we have our keeper generated the next step is to share our public key with the people that

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we want to receive encrypted messages from so that they can encrypt messages using our public key so

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that we will be the only people that can decrypt these messages because we have the private key.

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So in order to do this you need to come to your passwords and keys.

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Like I said you can access this from applications utilities and click on passwords and keys as you can

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see I have it already opened and I already selected my key pair which I created in the previous lecture.

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Now in order to export the public key.

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Now keep in mind we're exporting the public key not the private key.

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We never shared the private key.

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Hence the name private key.

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So we're gonna go to file.

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We're going to click on export and you need to select the location where you want to store your public

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key.

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And now I'm going to select my tour browser directory because I want to share this through email.

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So when added as an attachment and as we know the Tor browser can only access the third browser directory

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entails.

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That's why I selected this directory.

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What you can store it anywhere you want.

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Now I'm also going to change the format from PDP to armored PDP.

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This won't really make a big difference.

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The reason why I'm doing this so that I can show you the content of the key as plain text.

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So we're done here.

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I'm going to click on export and that's it.

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It's done.

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So if I go to my home directory and go to Tor browser you can see we have a file called John Wick that

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A C and this is my public key that I can share with anybody so that they can encrypt data and send it

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to me.

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Now you can literally attach this file the way it is.

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You can upload it to a file sharing service like I showed you or use on your own share.

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You can use any method of sharing this file if you don't want to share it as a file.

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You can also right click it select open with other application select view all applications and select

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your text editor to open it with a text editor.

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If I click on select here you'll see we'll be able to read the file as normal text.

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And this way you can literally copy all of this and paste it anywhere you want.

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So like this you can share the key without having to upload the file or attach it anywhere.

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You can copy this text send it as an instant message printed on a piece of paper and give it to someone.

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You can do anything you want with it.

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So you have two ways of sharing it.

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You can literally copy this text and send it to the person that you want to receive encrypted data from

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or you can attach this file right here.

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And like I said you can use any method of communication.

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It doesn't really matter how you send it now just as an example I'm going to be sending this as an email.

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So I've already logged in into my web mail as you can see in here.

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And what I want to do is send a message.

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So I'm going to click on compose.

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I'm going to put the e-mail of the person I want to send this to so I'm sending this to another e-mail

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account that I own for David Smith at elude dot and I'm going to set the subject and I'm going to call

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this my p GP key and then you can write anything here if you wanted the message.

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So we're going to say please find my PDP key below you can literally just paste all of the text that

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you copied in here like I said and then they'll be able to use this key as text to encrypt data to you

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and we'll see how you can do that.

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This is the first method of sharing your key.

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Like I said You can also share the key file that we exported to do that.

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We're going to use an attachment.

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So again I'm going to click on browse and select the key file that we have in here or already in the

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Tor Browser directory.

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So you just double click this and that's added to the attachment.

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Now like I said You don't need to send both.

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I'm just showing you both here as an example.

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What on this end in the key as a file or as text in here is enough for the other person to start encrypting

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data for you.

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Not only that but you can even add this key to your signature.

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So every time you communicate with someone they will see your public key and if they wanted to they

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can encrypted data that they're sending to you using your public key.

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And this way nobody can read this data except you a lot of people even put this in their profile page

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and forums and even and markets.

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So if you click on a certain account you'll probably see their GP key pasted like this so that when

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you communicate with them you would use this key to encrypted data.

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And that way they will be the only people able to read the message because you encrypted it using their

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public key.

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So the whole idea is you want to share this with anybody that might want to communicate with you so

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that when they send you something you will be the only person able to read what they sent you.

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So we have the key here we have it attached.

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We've already said the e-mail on the subject.

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So I'm just going to click on send to send this email and I'm going to go to the other computer.

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This is David's computer.

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The person that is supposed to send messages to John as you can see I'm already logged into the email

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account as well.

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I'm going to refresh to see if I got anything in my inbox.

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And as you can see I have a new message we're going to go to the inbox.

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This message is coming from John Wick.

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Perfect.

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So we're going to click on it again as you can see we have the key in both forums as an attachment and

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as text.

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So now this is David.

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And if we go back to our diagram David is the person that wants to send an encrypted message to John.

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So what John did is he created a key.

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He sent John the key pair.

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So we have the key right here.

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What we need to do right now is download the key and in the next lecture I'll show you how we use it

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to encrypt the message.

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So let's go ahead and download the key.

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So we have it in here as an attachment.

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All we have to do is click on Download.

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And as usual if you click on Save This will only allow you to save it in the third browser directory.

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And it's called John week at a.

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So I'm going to click on safe to see with their and if we go to our home directory go to Tor browser

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you will see we have the key saved right here.

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Now I'm actually going to remove this because I also want to show you how to download the key if it

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was sent as plain text if it was not sent as an attachment.

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So we're going to assume that you just got the key like this as text.

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So if you want to save a key that you got it like this for example if you've got it as an instant message

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or if you saw it on a forum or on an account where the user was sharing their public key so that you

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can encrypt messages for them.

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In that case if you want to start sending encrypted messages to this person using this key you want

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to make sure first of all you copy the whole key from the start here all the way down to the end.

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I'm going to right click and copy and then you want to open a text editor.

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So we're going to go to accessories.

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We're going to open our text editor.

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We're going to paste everything that we copied in here.

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We're going to save control as or click here.

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And you want to store this in any location that you want.

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Now you don't really have to put it into a browser.

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I'm just going to put it there anyway and we're just going to call this John Wick again that a a C.

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We're going to click on save.

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And again we have the file now if we go back to this directory.

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We have the file the John wake dot EMC and inside it.

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It has the content of the public key of John.

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Now all we have to do is import this public key to our hearing to do that again.

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We have to open the passwords and keys here and we're going to go to file import and select the key

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that we want to import.

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If you couldn't see it here then make sure you go to the location where you downloaded it.

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So in my case it was in tor browser.

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And again we have the key that we want to import in here click on open.

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It's going to show you the information of this key.

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Again like I said Remember I said anybody who has access to this public key will be able to see your

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e-mail address.

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And as you can see we can actually see John's e-mail address right here and we can see his name right

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here.

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John Wick.

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That's why it's very important to use your anonymous or fake identity in here.

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We're going to click on import to add this key and now if we click on our G and new P.G. keys as you

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can see we have John weak as an entry in here.

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And as you can see John Wick in here has an icon of one gold key.

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We don't see two icons going back to John's computer.

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If we go to the passwords and keys in here you can see John has two keys in here because this is a keeper.

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John has his own private key and the public key.

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But at David's computer David only has the public key and that's why we see only one gold icon in here.

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Again if you're right click this and go to properties.

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You'll be able to see the name and the e-mail of the key owner.

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You can see the key I.D. and click in on details.

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You can see the fingerprint which like I said can be used to verify the owner of the key.

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And we'll talk all about that later on in the course for now we have imported the public key of the

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person that we want to communicate with.

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So right now we can start encrypting data and send it to John.

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And the only person that will be able to see the content of this data is John because he is the only

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person that has the private key.