Encryption Options

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EFS Encryption Options for Windows NTFS file systems

Encryption options are located in the Backup and Restore options panel on the left side of the screen. Double Image utilizes the Windows NTFS EFS (Encryption File System) attributes to apply encryption or decryption of files on Windows controlled drives. When files and folders are encrypted, the font color becomes green for their file or folder name.

EFS Encryption defined

Windows volumes need to be formatted NTFS for encryption to be available. When relying on EFS encryption, it is very important that your system have a Windows EFS certificate.

Windows EFS certificate

If you use Double Image on other target drives with other file systems then encryption does not occur. If a profile with encryption options are set and the target platform does not support encryption the following warning message can appear unless you have warning displays turned off. In either case, warnings are written to the log:  Warning: The target file system does not support encryption. Encryption will be ignored during this copy.

Encryption Options on Windows controlled storage

Keep the target files encryption attributes equal to the source files encryption attributes (default, if target is Windows NTFS).

If the file is encrypted on the source, it is encrypted on the target. If the file is decrypted on the source, it is decrypted on the target.

Encrypt target files as they are copied

Double Image will encrypt all Windows NTFS target files during the copy process. A warning message is presented (unless turned off) to alert the user of this intended action.

Decrypt encrypted files as they are copied

Double Image decrypts all encrypted target files during the copy process.

Do not encrypt or decrypt files regardless of encryption attributes

If the file is encrypted on the source and not encrypted on the target, Double Image makes no encryption changes to the target file.

 

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