Re: [Cbor] [COSE] European Digital Health Certificates (used in European Digital Green Certificates = Vaccination certs)

[Michael Richardson <[e-mail]>]

Carsten Bormann <[e-mail]> wrote:
    > Given that we occasionally look at how other SDOs use CBOR, COSE, etc.:

    > This week here in Europe, everybody talks about (Covid-19) “vaccination
    > certs”.

Thanks for posting this, as my email asking you to post this was sent ten
minutes ago :-)

    > It is also interesting that one of the problems they had was with
    > QR-Code integration.  E.g., the base45 ASCII-funneled encoding they are
    > using [2] contains percent characters, which unsurprisingly get mangled
    > by some smartphone QR-Code readers (who try to percent-decode them as
    > URIs).  (That would have been easily avoidable at zero additional cost
    > by using a base41-style encoding instead and using a less risky charset
    > subset.)

My understanding is that QRcode can use the entire 8-bits.  Am I wrong?

    > Maybe we can find someone to talk about practical aspects of DGC and
    > related efforts at one of the next CBOR interims...

Actually, I think it belongs as a IAB Tech plenary talk.

-- 
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]   Michael Richardson, Sandelman Software Works        | network architect  [ 
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