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Hi -- can you please provide an exact citation for this? --bob


"The creator of the encryption code XXTEA says, and it is also reported by other cryptanalysts (see the articles by John Kelsey, Bruce Schneier, and David Wagner from 2002 to 2004), that exist certain combinations of DATA and KEYS in the encryption code XXTEA that, for some coding schemes, are producing results that WILL NOT BE PROPERLY decrypted also using THE CORRECT KEY. "

In five years time we're all going to be fitting ADS-B anyway. Flarm could have been at the forefront of that movement, which would have leveraged their valuable IP relating to flight path prediction, but they appear to have squandered the opportunity by instead fighting a rearguard action to protect their RF protocol.

My subjective impression of the latest Flarm software version is that it is not as reliable as it was, and range is reduced. But I have no hard data to confirm that.