VIIVO File

Files with the extension .VIIVO contain encrypted data using the AES-256 algorithm, secured against unauthorized access by the PKWARE Viivo application. They can include documents, graphics, or other types of information in the files. The software was dedicated to the security of files stored in the cloud. It was available on platforms such as Windows, macOS, Android, and iOS, cooperating with various services. The subscription service was closed in 2017.

Encryption of files before synchronization with the cloud

Files with the extension .VIIVO were created before synchronization with the cloud storage. A specific file, after encryption, has its name changed by adding the .VIIVO extension at the end, for example, a document.docx encrypted would change to document.docx.VIIVO. The application cooperated with various cloud storage services, such as:

• Box,
• OneDrive,
• Google Drive,
• Dropbox.

Encryption is based on a key - a password provided by the user, created as a result of using the PBKDF2 HMAC SHA256 algorithm.

Storing VIIVO files

.VIIVO files can be located in the cloud, in a dedicated directory with the same name as the extension. They were compressed and encrypted automatically after entering the appropriate settings in the application on the device. The nature of operations depends on the platform on which the software is used. Created encrypted copies of compressed files should have their counterparts on the user's source disk.