http://evac6dnxygj6dsvujt5hcz7rxka34bhyegbbaawrsvw6dotfvkhdvhid.onion
It
can create a virtual encrypted disk within a file, encrypt a partition,
or encrypt the entire storage device with pre-boot authentication. OnionShare (docs) (whonix Wiki) lets you securely and anonymously share a file of any size.
It works by starting a web server accessible as a Tor onion service,
with an unguessable URL that you can share with the recipients to
download or send files.