Currently encryption is not supported and deserves a deep investigation.
As a general rule, it could be implemented just in case it is supported by some .net functionality. If not, source code would be increased more than expected.
Native encryption doesn't look too good, it is proprietary. On the other hand, AES encryption (Winzip and others) could be incorporated with few code.
To generate the AES key, it will be needed to use the PBKDF2 algorithm, then pass the key to a regular (I hope) AES cypher.
More information about PBKDF2 implementation here: