TresorIt is a cloud, but (a) paid and (b) it is you they should trust.
Chirocenter not the best option for the cloud, a lot of traffic will possible glitches.
It is better to use file encryption. Here it is as convenient. I when I was not lazy, used BoxCryptor
(in fact EncFS under Win). Incited it to a folder, it transparently encrypted everything in it. This folder was lying in my dropbox. The very same utility it is mounted as a virtual disk, which can be transparent to work on the fly. Ie cloud sync already encrypted files, I work locally with the decrypted transparently and without any effort.
But then you have to trust the encryption utility :)
Free functionalist limited.
Will search in your repositories on my picture and find my whole life.
They do it without pictures can.
discuss options with the physical hardware, so I can buy and put at home mini-cloud, where I throw information. When the cloud personally, I have, at least, hope that the data is encrypted and nobody will be able to decrypt it without having physical access.
You trust the provider, the manufacturer of the OS, the manufacturer and NAS', the router manufacturer, the manufacturer applied FOR? All these points which are potential leak of data if paranoia in full.