Looks like an place to look into!
Thanks Russ and Patrik.
On 7/17/23 12:18, Patrik Fältström wrote:
QR codes do themselves "only" carry bits. There are a number of different encoding mechanisms for data in a QR code, and because of this, I had for efficiency reasons to come up with a BASE-45 encoding to be able to carry binary data in a QR code in the variant that can carry up to 45 different letters (for the covid vaccine passport QR code).
See https://datatracker.ietf.org/doc/rfc9285/
There is some more details in that RFC on the various encodings a QR code can carry as part of the reasoning behind Base-45.
paf
On 17 Jul 2023, at 17:53, Robert Moskowitz wrote:
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
