[knight99]

I am wondering how/if TrueCrypt would properly handle being synced if mounted on multiple machines at the same time. One of the biggest benefits of DropBox to me is the access the files instantly on all my computers. If I have to unmount and mount the TrueCrypt volume to change files, that benefit goes away.. What happens if I forget to unmount the volume at home, can I safely change the files while away?

[microtonal]

I tried this, and got multiple versions of the truecrypt volume file, filling up my Dropbox account. Pretty nasty, since I had to merge the changes of each variation back in one volume by hand.

This article resembles the recent posts about using git on Dropbox - I wonder if people actually tried this for a longer period, because it just doesn't work, unless you mount the volume only one machine simultaneously and always sync after unmounting (easy to forget after mobile use).

[jerrya]

Yes, I took the plunge one day and put a truecrypt volume on dropbox and then put my quicken files in that truecrypt volume, and, ....

Major lossage ensued when I found dropbox gave me multiple versions of that truecrypt volume.

[Groxx]

They're not. While the data spaces may not overlap, the file table very likely will (as much of it will fit in a single encryption block), so any parallel changes collide there in even the best circumstance.

I program out of my TrueCrypt volume while in Windows, unmount it, and let it sync. It's a super-easy backup, and DropBox is the only one I've used that handles a 1GB file correctly, and it does it without a hitch.

Worst-case-scenario is you do cause a collision, and you just mount both volumes at once and copy stuff to the one you want to keep.

[foxhop]

I guess more testing would be required to know for sure. Its good news that both services are free so it wouldn't be difficult to test out your circumstances.

I use Dropbox more like a thumbdrive for temporary transfers and I like to have the warm and fuzzies that my data at rest is protected with strong encryption.

[hedgehog]

Nope, you can only mount the disk one place at a time. It wouldn't be an easy thing to build.