But the face-to-face case isn't intrinsically dependent on SSL security, and
it's nice not to introduce that attack vector...
If the only concern is to make scan-to-pay work without reliance on
SSL's PKI, it might be better to specify the payment protocol url
*and* the public key used for
I spoke briefly with Peter (sipa). He recommend I forward this post to
the mailing list for further discussion.
My apologies if this has been discussed before, but I was curious about
some things re BIP70 message delivery. In particular, I don't clearly
see the value of the PaymentACK
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