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In the previous videos, we have seen how we can hide text behind text and how we can hide executable

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file behind a text file.

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But now we will see how we can hide our data.

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That is a text file behind an image.

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So if someone opened the image, he will only be able to see the image and not the data behind it until

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and unless he will aware about it.

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OK, so we are going to use two different tools for this.

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One is open Sternhell and other one is Rick Stengel.

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OK, so you can easily get these two tools over the Internet, but if you don't, then I will attach

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both of them under the resources of this lecture.

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You can download it from there.

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Now, let's open the first tool.

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So this is the text file.

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OK, so this is the card details card number and PIN number.

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OK.

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Hey, don't copy this, OK?

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Now we are going to hide this data behind this image, OK?

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Now, let's install the application.

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I agree in St. Clause.

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Let's open this.

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Let's run once again, I agree, is Don Carlos.

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OK, but an open Stegall.

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I don't know why it opens, you didn't open it the first time, but now it's looking, so I bet your

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message file here, OK?

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And the message file is your secret data, which you want to hide.

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So open stogel, this one open now select the cover file.

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So this is the image behind which we want to hide our secret data right now.

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The third is the output Stegall file.

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OK, so leave it to default and let's take the password.

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The let's say one, two, three, and confirm password.

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One, two, three.

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Select how data Bogard says please provide the venue for output stogel file.

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OK, so let's select the island file again.

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Select all files.

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It says you'd accept only not being files.

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Nobody will be defined as well.

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And let's click on high data notes processing and let's for OK, so computer right now.

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If someone opened this image, he will only be able to see the image and not the data behind it.

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OK, so but now if you receive this image, then how can you extract the data behind it?

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OK, so let's open the tool.

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Select the extra data file.

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OK, and then select your output file behind which we have learned the data and now it says output folder

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for message.

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Fine.

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OK, so select the folder.

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Lets you select open Stegall.

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OK, so open.

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Now you have to mention the exit password which we have used for hiding the data.

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Otherwise you will not able to extract the data.

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Right.

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So enter the password and click on extract data.

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It says find new pics already exist.

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All right.

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Yes.

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See, it says file already exist because I have selected the same folder for the extraction of data.

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But you can try the another folder.

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OK, so that it will extract this file and save it under the new location which you have selected.

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OK, so this way you can hide data behind image and extract the already hidden data.

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Right.

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So in the next video we will see how we can use Stegall.

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OK.