Encrypted Flarmnet files and 3rd party software

On Thursday, March 19, 2015 at 12:31:25 PM UTC-7, wrote:
On Thursday, March 19, 2015 at 11:31:25 AM UTC-7, jfitch wrote:
I think this merits its own thread. Due to legal concerns, Flarmnet has encrypted their files, and as I understand it most displays including the Butterfly will no longer show pilot or glider information. This is separate from the opt in/out of tracking as I understand it.

I haven't played around much with this stuff, yet, but I assume that since Butterfly runs FlarmNet, their displays will certainly have access to a suitably encrypted database. They may also choose (or not) to pass the encrypted database and keys to LXNAV, LX Avionics, and other manufacturers of hardware devices. Where this is going to be a problem is with software like XCSoar, LK8000, etc., as I don't believe there is any way to distribute an encrypted database for use with open source software, without revealing a decryption key that can be used by the "bad guys" (OGN).

Personally, my preferred way to handle this would be to refuse to register my Flarm device with a private company that does not make their (opt-in only, of course) database openly available, and instead register with a company or organization that promises to make the data open to all. About all that database need contain is a tail number, glider type, and perhaps pilot first name and last initial. I note that one can now register their Flarm device with OGN, but they do not appear to have a link available to download their database. Perhaps they should...

Marc

I am told by Butterfly that even there own display will not display this information, at least at present.

Since the PLAU and PLAA sentences pass the ID through the serial port, what is needed is an independent database located somewhere other than Germany where the legal considerations originate. From it an unencrypted file can be produced that will work with all existing software. It could be populated initially with the last unencrypted file which is de facto public record.