RFC for hardware wallet connection

[DaveF]

This kind of came up in a conversation I was having the other day with someone.
We both went looking for an RFC or similar for hardware wallet communication and could not find it.

Does not need to be an official RFC but at least something similar.

An RFC is an official, numbered document published by the Internet Engineering Task Force (IETF). These documents serve as the blueprints, rules, and specifications for how internet technologies are supposed to operate.

Just wondering if we missed it.

-Dave

[satscraper]

This kind of came up in a conversation I was having the other day with someone.
We both went looking for an RFC or similar for hardware wallet communication and could not find it.

Does not need to be an official RFC but at least something similar.

An RFC is an official, numbered document published by the Internet Engineering Task Force (IETF). These documents serve as the blueprints, rules, and specifications for how internet technologies are supposed to operate.

Just wondering if we missed it.

-Dave

Probably the closest thing you’re looking for is ISO/FDIS 13133 (Financial services - Security reference model for digital currency hardware wallets, SRM‑DCHW). It is currently under approval, so I wasn’t able to find the full public text, but there is at least some abstract hint about Communication section in the upcoming standard.

[DaveF]

Probably the closest thing you’re looking for is ISO/FDIS 13133 (Financial services - Security reference model for digital currency hardware wallets, SRM‑DCHW). It is currently under approval, so I wasn’t able to find the full public text, but there is at least some abstract hint about Communication section in the upcoming standard.

Well that is more then we found :-)

Wonder why there has not been some sort of open standard discussed. It's been a dozen plus years since the 1st HW wallet came out. Really surprised that at this point nobody has come out in public and have a public discussion to say "lets do it this way, or at least lest discuss some sort of standard"

-Dave

[n0nce]

Wonder why there has not been some sort of open standard discussed. It's been a dozen plus years since the 1st HW wallet came out. Really surprised that at this point nobody has come out in public and have a public discussion to say "lets do it this way, or at least lest discuss some sort of standard"

To the best of my knowledge, such standard does not exist.
Most wallets using QR codes use the standard BIP174 PSBT format as well as standard QR code generation and parsing, hence no RFC needed.

Contrary to my belief that QR codes would become the default, these days various newer wallets use other physical technologies.
I'm thinking about NFC (Satochip), 'Quantum Link' (Passport Prime) or plain Bluetooth (Ledger).

Covering hardware wallet communication protocols for different (or all) physical channels in one RFC might be infeasible.
But it would be very nice to see some solid communication architectures ossified into RFCs, also for interoperability.