The test includes lots of useful information such as requirements to transmit your callsign and using minimum power necessary.
The prohibition on encryption is pretty critical to enforce other rules such as only using it for non-commercial purposes. Encryption isn't actually necessary for any of the stated purposes of amateur radio (experimentation, recreation, training, contesting, emergency comms, etc). You can still use any digital mode, including digital signatures, but not encryption of the content.
I might be in favor of creating a class lower than Technician, and allowing taking the test online, though. You should still be assigned a callsign that you are required to transmit.