Instead of encrypting all of my data on my hard drive and then uploading to Google Drive, I used the EncFS reverse encryption feature, like so:
https://wiki.archlinux.org/index.php/EncFS#Backup_plaintext_directory
I have uploaded the resulting encrypted directories to Google Drive. Boxcryptor does not seem to recognize they are canidates for decryption. I moved the .encfs6.xml file into the correct folders and still nothing.
Does anyone have any suggestions to troubleshoot?