Is there an existing protocol to transfer a data file via QR codes?
Say one computer shows a QR code on it screen and the second "reads" it.
It displays a ACK QR code that the 1st can read.
and so forth.
The application is for a disconnected system to "safely" receive a data
file to inspect and use and have a high degree of confidence that
nothing else is sneaking through.
I want this for transfering a PKIX CSR to an offline signing CA that
would then respond with the cert (or a NAK to the CSR).
See
https://datatracker.ietf.org/doc/draft-moskowitz-drip-dki/
For the actual use case.
I will be at IETF and am interested in working on this on Linux (Fedora 38).
thanks!
Bob