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ap8's avatar
ap8
Explorer | Level 4
8 years ago
Solved

Encrypting local copies of shared files and synchronizing

Hi, I understand that encryption of the local copy of Dropbox files is my responsibility.   For various reasons, I do not want to encrypt the entire PC with Bitlocker and a boot password. I am usi...
Delete
desktop
sync
  • Jay's avatar
    Jay
    8 years ago
    Thanks for the detailed requirements, Alison. Sounds like how TrueCrypt works when I use it occasionally by mounting a folder of the encrypted file.
     
    Long story short, it wouldn’t work the way you want it to, since it will see it as a hard drive that no longer exists, and thus the folder will be ‘missing’. 
     
    You’ll get an error message almost instantly, and in the worst case scenario, it’ll start to delete files from your account, thinking that the files were all deleted at once.
     
    It’s similar to how having your Dropbox folder syncing on an external drive works, and my post here about the potential effects of that would apply here.
     
    Hope this helps to clarify matters!
Jay's avatar
Jay
Icon for Dropbox Community Moderator rankDropbox Community Moderator
8 years ago
Thanks for the detailed requirements, Alison. Sounds like how TrueCrypt works when I use it occasionally by mounting a folder of the encrypted file.
 
Long story short, it wouldn’t work the way you want it to, since it will see it as a hard drive that no longer exists, and thus the folder will be ‘missing’. 
 
You’ll get an error message almost instantly, and in the worst case scenario, it’ll start to delete files from your account, thinking that the files were all deleted at once.
 
It’s similar to how having your Dropbox folder syncing on an external drive works, and my post here about the potential effects of that would apply here.
 
Hope this helps to clarify matters!
  • ap8's avatar
    ap8
    Explorer | Level 4
    8 years ago

    Thanks very much for the prompt reply, Jay.

     

    Pretty much as I feared, and I'm trying to remove the human being (me) from the equation as much as possible. I could prevent the Dropbox app from starting until everything is ready, but therein lies madness. Mine!

     

    If it was just me needing to access the files, I'd encrypt before synchronising...

     

    The only other things I can think of are:

    • To create an encrypted partition that unencrypts on boot... but that is *almost* back to the Bitlocker scenario. (Others occasionally use my PC, I'd have to give them the boot password, and then we have humans in the loop again. :-)
    • To stop their files from synchronizing so I have to access them online. Safer but MUCH less convenient!

    I'll pass the problem on to the clients and see what their suggestions are - only two or three (so far) are affected. Either they will have thought of something already and not told me, or will not have given it a moment's thought...

      

    Alison

    • Jay's avatar
      Jay
      Icon for Dropbox Community Moderator rankDropbox Community Moderator
      8 years ago
      I hope you find a solution that’ll give you the least amount of admin to do on your end!
      • ap8's avatar
        ap8
        Explorer | Level 4
        8 years ago

        Just a sanity check... it sounds like the only really safe option is to encrypt the whole system and unencrypt on boot, so nothing can start synchronising until after the unencryption has completed.

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