APPXIO Data Encryption

Limitations:

1. One-record APPXIO files cannot be encrypted.
2. Fixed length consecutive APPXIO files cannot be encrypted.  Variable length consecutive APPXIO files may be encrypted.

1. If data is encrypted, a warning should be presented to the user prior to generating a new encryption key, or changing the System Parameter Pass Phrase. This could help prevent unintended data loss.
2. When importing data into an newly encrypted state, we should either delete the PORTDATA or warn the user that the PORTDATA is unencrypted.
3. When exported from an encrypted state to an unencrypted state, we should warn the user that the exported data is unencrypted.