Automatically encrypt acquisition folder (and securely wipe unencrypted files)

[botherder]

In some cases, carrying acquisition data (particularly memory snapshots) through various types of checkpoints (e.g. borders/airports) could be problematic as it might expose very sensitive personal data.

The idea would be to automatically compress, anonymize and encrypt the acquisition folder if for example a PGP public key is detected on the drive.

The primary issue is the size of the data to be encrypted, which with memory snapshots might be significant.

[botherder]

Started with 56fde5a.
Still trying to figure out what's the best way to encrypt the acquisition.

[botherder]

Almost completed with 9881647.
Need to securely wipe the unencrypted files though.