If Dropbox were designed to handle sequentially-numbered blobs of encrypted data, changing one file would require your other devices to download only that file (an encrypted blob of roughly the same size).
But they do: store files and name them sequentially ;)
I think Encfs is the best solution, since it encrypts each file separately. Just mount the encrypted end over the Dropbox directory and the plaintext end somewhere else, and use it transparently.
But they do: store files and name them sequentially ;)
I think Encfs is the best solution, since it encrypts each file separately. Just mount the encrypted end over the Dropbox directory and the plaintext end somewhere else, and use it transparently.