I have several files on my Ubuntu system, which are LUKS encrypted partitions. For my own shame up to this day I thought that simply changing binary file's extension will be enough to hide what a file really is. I.e. if I rename my LUKS partition
windows.vdi then everyone would think that this is a virtual box drive, although corrupted, because an attempt to use it as the extension suggests would have definitely failed.
But today I've known about the
file command, which correctly shows what a file is:
file windows.vdi windows.vdi: LUKS encrypted file, ver 1 [aes, xts-plain64, sha1] UUID: xxx-xxx-xxx
And the same problem is with other file-types, which I would like to hide, like keepass password files, etc.
Does anyone know any way to hide file's true purpose on a system?
The idea is that in a situation where one can not resist a demand to provide passwords (for instance if he is captured physically and tortured), he should be able to deny the very existence of any encryption just after a computer was shut down, that is without hiding any files in another ones, editing files in a binary editor etc. just because he may not have enough time to do this