Saturday, February 18, 2012

Another Free Tool for Encrypting and Decrypting Files Using the Windows Context Menu


There are many ways to encrypt your private files and information. Two ways we have discussed before are to use TrueCrypt (Windows and Linux) or BitLocker (Windows). If you want a less complicated method for encrypting your files, we have written about an open source tool allowing you to easily encrypt and decrypt files using the context menu. We found another, simpler, open source tool, called Lazar Crypter, that provides encryption and decryption options on the context menu. It adds a Lazar Crypter submenu to the Windows context menu, providing a quick way to encrypt and decrypt files from within Windows Explorer.
Download Lazar Crypter from
To install Lazar Crypter, double-click on the .exe file you downloaded.
Running the Lazar Crypter installation file
If the Open File – Security Warning dialog box displays, click Run to continue with the installation.
Open File - Security Warning dialog box
The Welcome screen on the setup wizard displays. Click Next.
Setup Wizard Welcome screen
The Select Destination Location screen displays. If you want to install Lazar Crypter to a different location other than the default location listed in the edit box, use the Browse button to select another location. We accepted the default location. Click Next to continue.
Select Destination Location
The Select Start Menu Folder screen displays. If you want to add the shortcuts for Lazar Crypter to a different Start menu folder than the default listed in the edit box, use the Browse button. Click Next to continue.
Select Start Menu Folder
The Ready to Install screen displays with a summary of the settings you selected. If you want to change any of the settings, use the Back button. Otherwise, click Install to continue with the installation.
Ready to Install
Once the installation is done, the Completing the Lazar Crypter Setup Wizard screen displays. ClickFinish to close the setup wizard.
Completing the Setup Wizard
To encrypt a file, right-click on the file and select Encrypt from the Lazar Crypter submenu.
NOTE: You can also select multiple files to encrypt at the same time, as long as you want to apply the same password to all the files.
Selecting Encrypt
The Encrypt dialog box displays. Enter a password in the Enter password edit box and enter the same password again in the Re-enter password edit box. Click Start.
Entering password to encrypt a file
The original file is replaced with an encrypted version of the file with the .lcr extension added after the file’s original extension.
An encrypted file
To decrypt a file, right-click on the encrypted .lcr file and select Decrypt from the Lazar Cryptersubmenu. You can also double-click on the file to decrypt it and open it.
NOTE: You cannot decrypt multiple files at the same time. You must decrypt one file at a time.
Selecting Decrypt
The Decrypt dialog box displays. Enter the password you assigned to the encrypted file in the Enter password edit box and click Start. The file is automatically opened in the program associated with its file type. You can make changes to the file, print the file, and any other normal actions for the file type.
Entering password to decrypt a file
When you close the program, the following dialog box displays, whether or not you made changes in the file. Click Yes if you made changes you want to save.
Updating the encrypted file
You can encrypt a file and keep the original file by right-clicking on the file and selecting Copy from theLazar Crypter submenu.
Copying a file using Lazar Crypter
Right-click on the file again and select Paste from the Lazar Crypter submenu. The Encrypt dialog box discussed earlier displays asking for a password for the encrypted file. Enter the password twice and clickStart to encrypt the file.
NOTE: If you want to encrypt the file and securely delete the original file, use the Cut option followed by the Paste option. The original file is overwritten with random data before it is deleted. We have also previously written about a tool that allows you to securely delete files.
Selecting Paste on Lazar Crypter submenu
To check the integrity of your encrypted file, right-click on the file and select Integrity check from theLazar Crypter submenu.
Performing an integrity check on an encrypted file
You can also set a default password that will automatically be used when you encrypt files using Lazar Crypter. To do this, select the Set default password shortcut on the Start menu.
Selecting Set default password
The Set default password dialog box displays. Enter a password in the edit box and click OK. Notice that the password displays in plain text on the dialog box, so be careful when entering it.
NOTE: If you have already encrypted a file with a password, you must set the default password to the same password used on that encrypted file to be able to decrypt it. The password is automatically entered into the Decrypt dialog box immediately decrypting and opening the file.
Entering the default password
A dialog box displays telling you that the default password has been saved.
Default password saved
If you don’t want to use a default password anymore, you can remove it by selecting the Set default password shortcut again and leaving the edit box on the dialog box blank. When you click OK, Lazar Crypter will tell you that the default password has been deleted.
Lazar Crypter provides a quick and easy method for encrypting and decrypting files. Unfortunately, it is not a portable option. It is useful if you do not need to take your encrypted files with you. For a portable option, see the second part of our post about AxCrypt.

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