If you're serious about security, we're serious about helping you keep private. We encourage all people to take advantage of the security software we have developed - it has been designed to help you keep private.
Please, read the FAQ pages we have prepared for you to find the best solution to fit your security needs.
Q1. What is Dekart Private Disk? Dekart Private Disk is a fast program that allows you to protect your data from unauthorised access. Easy-to-use, secure and reliable AES disk encryption software. Creates one or more virtual encrypted disks on your hard drive. When you write some files to this disk they are encrypted on the fly and when you read them they are decrypted automaticaly. |
Q2. How does it work? Virtual encrypted disk is a simple file that is stored on your hard disk. All data stored on disk are stored in encrypted form in this file. At the end of the file the "key data" is attached. Key data is created during "Create Disk" procedure and contains AES random secret key that is used for decrypting the disk data. AES key is encrypted using the password specified by user. When you mount the disk, the disk encryption key is decrypted using this password and the on-the-fly decryption of the disk begins to work. |
Q3. I forgot my password, can you help me to get the data back? Unfortunately we are not able to help you. AES key that is used for decryption is a big random value that was generated when you created your disk. We can not guess it. You can guess the password but if the password is quite random and bigger than 8 characters it's also impossible. |
Q4. Is there a back door in your software? No. There is no “back door” in our software, and there is no point in making it as we might risk losing the good reputation of our products. Therefore, please be very careful about your password, because under no circumstances we will be able to recover your data if you forget your password. |
Q5. What is the difference between Dekart Private Disk Light, Dekart Private Disk and Dekart Private Disk Multifactor? - Dekart Private Disk Light is a free disk encryption software, with 128-bit encryption to protect private information. No longer supported and developed. - Dekart Private Disk is a new, easy to use and constantly improving disk encryption software, which provides 100% protection of your private information by employing strong encryption methods (using AES encryption for encrypting both the encrypted disk and the encryption key). See more in the next question. - Dekart Private Disk Multifactor is a disk encryption software using two and three factor authentication to protect access to user data (smart card, USB token and (optionally) biometric verification device (e.g. fingerprint scanner). |
Q6. Why Dekart Private Disk is more secure than Dekart Private Disk Light? DPD Light: a) Your disk is encrypted by the "AES key" using AES algorithm. b) Your "AES key" is encrypted by the "RC4 key" using RC4 algorithm with default key length installed on your computer. Length of RC4 key could be 56 or 128 bit it depends on Windows. Open about dialog in IE and check if you have 128 bit encryption. c) RC4 key is generated from your password using SHA-1 algorithm. In Dekart Private Disk 2.xx we don't depend on (use) Windows cryptography at all. So the Disk is encrypted using AES 128-bit algorithm. AES key is encrypted using AES 128-bit algorithm too. The second AES 128-bit key is generated from your password using SHA-512. The main difference is that we no longer use RC4 algorithm and SHA-1 and switched completely to AES 128 bit. Why two AES keys: one for Disk encryption (independent from your password) and another AES key - that is generated from your password. This architecture allows to change the password without the need to reencrypt the whole disk's data. If you change the password - Disk's encryption key remains the same, it's just reencrypted with another AES key (generated from the new password). |
Q7. How long my password should be to ensure better protection? You need to keep in mind that all protection is kept by your password, that's why we recommend that you use the password containing more than 8 characters. Read more at "How to choose the strong password" page. |
Q8. Can I store encrypted volumes on recordable CD disks, CD-RW disks or USB flash disks? Yes you can. Create the container file on your hard drive, and burn it onto the CD or write it on the USB flash. More about USB flash disk, DVD, CD encryption... |
Q9. My hard drive is already fully partitioned. Does this mean I either need to repartition my hard drive, or add a new hard drive? Or, will DPD allow me to somehow use some of my existing partitioned space? You do not need to repartition your hard drive. When you create a new disk you are required to give the name of the file where you want to store your secret information in the encrypted form. That's all. So the new disk is actually just one file, not partition. It's much easier to manage a file than a partition. E.g. you can copy this file to another location, write it to CD, etc. |
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