File system
XCTU interface
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
156
XCTU interface
XCTU releases starting with 6.4.0 include a
File System Manager
in the
Tools
menu. You can upload
files to and download files from the device, in addition to renaming and deleting existing files and
directories. See the
section of the
for details of its
functionality.
Encrypt files
You can encrypt files on the file system. This provides two things:
1. Protection of the client private key for TLS authentication while it is stored on the XBee Smart
Modem.
2. Protection for user's MicroPython applications.
Use
to place encrypted files on the file system. The XPUT operation is otherwise
identical to the PUT operation. Files placed in this way are indicated with a
pound sign
(
#
) following
the filename. The XBee Smart Modem does not allow an encrypted file to be read by normal use so it:
1. Cannot be retrieved with the GET operation.
2. Cannot be opened and read in MicroPython applications.
3. Cannot be created by a MicroPython application.
When
is run with the filename of an encrypted file, it reports the SHA256 hash of
the file contents. In this way you can validate that the correct file has been placed on the XBee Smart
Modem.