1. Use PGP / GPG and encode the key as 2D-Barcode for easy key-sharing. 2. AES or better block cipher for the payload.
Cynical mode: The law suit would be very expensive, but imho. possible to get to the next round. This elevates for several instances, until you're out of money and the lawyers can burry it.
Nice in Firefox, but my Chrome (Version 73.0.3683.103 (Official Build) (64-bit)) on MacOS does not show the game "frame".
1. Use PGP / GPG and encode the key as 2D-Barcode for easy key-sharing. 2. AES or better block cipher for the payload.
Cynical mode: The law suit would be very expensive, but imho. possible to get to the next round. This elevates for several instances, until you're out of money and the lawyers can burry it.
Nice in Firefox, but my Chrome (Version 73.0.3683.103 (Official Build) (64-bit)) on MacOS does not show the game "frame".