this post was submitted on 23 Feb 2025
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Help Me Understand The Cryptomater Process Please! (lemmy.dbzer0.com)
submitted 6 days ago by constantreadarr@lemmy.dbzer0.com to c/privacy@lemmy.dbzer0.com
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So, I want to encrypt my files with Cryptomater before they go to my cloud based backup service. Lets say I use Dropbox.

So I know I create a Cryptomater vault and give the location as a folder in Dropbox.

I can't see that Vault until I open it in Cryptomater, right? This means I can't add anything to that Vault unless its open on my machine. As its open, I'm assuming that the data I'm adding is unencrypted until I close the Vault?

Lets say I add a plain text file to an open Vault.

So, at what point does Dropbox upload that file? Is it the minute its added to the Dropbox environment? Because that would mean its unencrypted.

Or is it not uploaded until the moment the Cryptomater vault is closed? Because that would mean I'd either have to leave the Vault open the entire time I was on my device and possibly have to do one (potentially) big upload at the end of the day maybe or keep opening and closing the Vault every time I wanted to work with the Vault (edit an existing document, add a new one, delete one etc).

Or have I misunderstood the process? I hope so because it either sounds not very secure or not very usable.

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[–] ReversalHatchery 1 points 5 days ago

it's called Cryptomator.

when setting up a cryptomator vault, you need to tell it the vault's location inside of your dropbox folder, this will hold encrypted files, and then another directory in which you'll see your files normally.
after that's done, and you have also unlocked the vault, if you want to store files with cryptomator's encryption, you shouldn't use the dropbox folder for that, but the other one that I mentioned.

when you place a file in the second folder above, it'll be immediately encrypted and then placed in the dropbox folder. you can leave the vault as long as you need it, or even set it up for automatic unlocking. cryptomator does encryption for each file separately. its not like veracrypt that manages one large file.