Encrypting File System (EFS) Tutorial for Beginners

Encrypting File System (EFS) is a feature of Windows that you can use to store information on your hard disk in an encrypted format. It uses sha1 algorithm for encryption/Decryption.

Encrypting a File

Suppose you want to encrypt a file Bank details. Right click on it and Select Properties then click on Advanced Settings.

Tick ‘Encrypt contents to secure data’ and Click ok. After That Click on Apply.

A dialog box will appear. Tick Encrypt the File only and Click OK to encrypt the File.

Now your file name font color will turn green which ensures File is encrypted successfully.

Now if you run this file on another system it will show an error Access is denied.

Decrypting a File

Now in order to decrypt that file on another system you need to create a certificate from the system by which you encrypted the file and then install that certificate on the system in which you want to run that file.

In order to create a certificate, go to file properties then advanced Attributes then details.

Click on Backup keys.

A dialog box will appear like this. Click on Next

Now Select “Include all certificates” and “Export all extended properties”. Click next.

Choose a password to protect your private key.

Select the path to which you want to store the key.

Click on Finish.

Now copy the certificate in the target system and execute it. A similar dialog Box will appear. Click on next until you see something like this. Enter the password you used before.

Click next and finish..Now the certificate is installed you can simply double click the file to open it

How to Hide Text behind Text

Introducing a very simple but very rarely known way of hiding a text file inside a text for transmission of secured textual information , thst to in few simple steps .

Hide

Step 1

Open command prompt and create a text file to where ever location you want or create a text file using windows GUI (in this example we have created our text file with name raj.txt and saved it to the Desktop). 

Step 2

Go to the location where the file has been saved and use “type” command to view the content of the file. 

Step 3

Here comes the main step of hiding secret information. A hidden / confidential file is now been created through Echo command and the confidential information is being saved in it.

Syntax: echo <Secret/confidential message> > host text file (raj.txt in our case) : <secret file name (secret.txt as shown below)>

We have saved our confidential file (secret.txt) containing confidential data within our host file (raj.txt)

 

Unhide

Step 4

To view the content of this hidden file, we need to use the following command after entering into the directory containing host file (raj.txt)

Syntax : start .<host file(raj.txt)> : <confidential file(secret.txt>

How to Hide Text File Behind MP3 (OpenPuff Tutorial)

OpenPuff is a handy application that allows you to hide data into encrypted files in order to send it to other users. The program can be useful for the users that want to send confidential information without being noticed.

The program uses the principles of steganography in order to hide the information into regular files such as images, audio or video files. You can use the application to conceal text files, images or other files with a maximum size of 256 MB.

Features of Openpuff

  • Image / Audio / Video (codec independent) / Adobe / Flash support
  • Multiple carriers’ chains (up to 256 Mb hidden streams)
  • Random per-block-512bit-cryptography-algorhythms
  • Data whitening
  • Adaptive LSB + Bits selection level
  • It’s a professional steganography tool, also suitable for newbies!
  • Its only aim is to be widespread among interested users
How to Hide

First download OpenPuff from here

Now open OpenPuff and click on Hide option from the main screen.

From the Data Hiding screen,

In step (1) enter the password you want to use to hide the data,

In step (2) Select the file you want to hide

In step (3) Choose the carrier/s where the hidden file will reside

In step (4) Select the Bit Options, and lastly hit Hide button to start the hiding process

How to unhide

Now open OpenPuff and click on Hide option from the main screen.

In step 5 Enter your password

In step 6 Select the carrier/s

In step 7 clicks on Unhide button. Aside from hiding data