How to enhance the security of cloud storage information

When you store your data on a remote server, there are a number of tools to help protect your data privacy. One of our favorite tools is Boxcryptor, an Easy-to-use encryption program that works for all of today's popular cloud computing services and is free (of course you need to pay for upgrades) and helps keep your data secure.

Boxcryptor basically encrypts files on a virtual hard disk, using 256-bit AES encryption. Unlike another popular instant-encryption tool TrueCrypt, Boxcryptor encrypts a single file, not an entire disk or container. This means that when your boxcryptor encrypted files are synchronized to your http://www.aliyun.com/zixun/aggregation/2900.html > Cloud storage Service, they are saved immediately.

Boxcryptor encrypts and decrypts your files locally without sending a password to any third party. In other words, your files will not be readable by outsiders, even if hackers steal your passwords or otherwise break through the defenses of your cloud storage provider.

The use of Boxcryptor

You cannot simply drag a file to a folder that BOXCRYPTOR.BC the software creates in your cloud storage directory. If you do this, the file will not be encrypted. Instead, you need to deposit the file directly into the Boxcryptor virtual drive--s: in my case. Doing so also makes these encrypted files appear in your cloud storage folder.

Again, the only way to decrypt your files is through the same virtual drive. If you try to embed your files directly through BOXCRYPTOR.BC folders, they are still encrypted and you will not be able to read them.

This scenario makes accessing your files a bit cumbersome, but assuming that you have a desktop client with Boxcryptor and cloud services installed on your computer, even the free version of Boxcryptor allows users to access the cloud storage encrypted folder. Boxcryptor also provides an Android application that allows you to access your encrypted SkyDrive, googledrive, and Dropbox files after you enter your Boxcryptor password. It also provides applications for iOS operating systems, but it can only be used for Dropbox.

Because all encryption and decryption is done on a boxcryptor virtual drive, you may no longer be able to access the BOXCRYPTOR.BC folder that is stored in the cloud drive. However, if you do, be careful not to move or delete encfs6.xml files. This is the configuration item that is required to decrypt the file. If you move or delete the file, you will not be able to decrypt your file.

Boxcryptor Use attention problems

Boxcryptor users with no storage limit version can run multiple Boxcryptor virtual drives at the same time, but free users are limited to a single virtual drive. Does this mean that you can encrypt or decrypt files only in a single cloud storage service or offline location? Really。 It just means that you can only have a single virtual drive running at a given time. Basically, you can create multiple encrypted folders, but only one file can be encrypted or decrypted at a time.

To create another encrypted folder in another location, right-click the Boxcryptor icon in your system tray and choose preferences. Next, go to "advanced mode", ignore the warning that the program displays, and click on the icon of your encrypted virtual disk. The Remove option will turn red and click Activate. Your drive has disappeared from the list. Don't worry, the actual folders (and their encryption keys) will not be deleted.

The setup Wizard pops up the backup and can encrypt another different cloud service or offline folder. Complete the creation process just as you did before, create a password and select a specified virtual drive. Advanced options Pop up during this process. But you don't have to worry about that unless you're curious about the special uses of the software. When you create a Boxcryptor folder, you do not have to restart the computer again and again.

However, if you need to access or add an encrypted folder to the folder you created the first time. When you remove it from the Boxcryptor list, the virtual drive, not the folder itself, will disappear. To build your second encrypted folder. Don't worry, it's easy to connect to the Boxcryptor folder you created earlier.

First, as before, remove the current virtual drive in advanced mode, but this time, you need to click Add, not as new as you did before. You will be asked to select a location for the Boxcryptor folder, and select the location you BOXCRYPTOR.BC originally created. (for example, in my case, in SkyDrive.) Next, I will create the virtual drive you want to select a letter, ignore the advanced options, and follow the prompts to enter your encrypted folder password. This way, a virtual drive connects to your computer's original Boxcryptor folder, and you can encrypt and decrypt your files.

Cancel and restart the virtual drive to switch between multiple encrypted folders to complete the task, but if you regularly run between multiple services, it can be complicated to bounce back and run again and again. If you want to maintain multiple encrypted folders and plan to use them frequently, it is best to upgrade to a personal license version that has no storage limit, so that you can reduce the headaches that are constantly switching and meet your needs as a software developer.

(Responsible editor: Lu Guang)