An OTP library
$ rebar3 compile
- https://developer.apple.com/library/archive/documentation/PassKit/Reference/PaymentTokenJSON/PaymentTokenJSON.html
- https://stackoverflow.com/questions/56013953/how-to-verify-a-file-and-a-p7s-detached-signature-with-openssl
- https://www.xolphin.com/support/OpenSSL/Frequently_used_OpenSSL_Commands
- https://medium.com/@brucifi/working-ecdsa-signature-in-erlang-ddffdf45a545
- https://github.com/halturin/applepay
- https://github.com/processout/applepay
- https://luca.ntop.org/Teaching/Appunti/asn1.html