You can definitely pass a PSBT file from any airgapped device but remember some of these devices aren't a panacea.
Some people have had trouble sending large amount of inputs in one TX (140+) with some devices. The HWW couldn't absorb the PSBT generated to sign - legit failure.
HWWs can also make your Bitcoins less safe by using their Random Number Generators & trusting that your device is legit & not tampered with.
I do understand the use of HWWs for signing, but people store their seeds on these HWWs which are only protected with a pin code!!
This is the point you've missed^
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If you're using a stateheld device please either wipe the device or store it with your seed. Your pin isn't good security for your Bitcoins.
ShiShi21m
You can definitely pass a PSBT file from any airgapped device but remember some of these devices aren't a panacea.
Some people have had trouble sending large amount of inputs in one TX (140+) with some devices. The HWW couldn't absorb the PSBT generated to sign - legit failure.
HWWs can also make your Bitcoins less safe by using their Random Number Generators & trusting that your device is legit & not tampered with.
I do understand the use of HWWs for signing, but people store their seeds on these HWWs which are only protected with a pin code!!
This is the point you've missed^
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Further,
If you read my OP carefully I don't say the software you're running isn't keeping your Bitcoins safe, I was referencing the hardware as being sort of generic & nothing special needed & the code youre using to keep those Bitcoins safe isn't something that is ultra complex like some HWW providers try to market.
Like when they shove secure elements into our faces which are shrouded in NDAs and secrecy around vulnerability disclosure.
Back to my OP,
I phrased it in a way to catch your attention, but I was hoping my last sentence about airgap would drive the point home of convenience & that's why we use HWWs - but if all the providers go away tomorrow Bitcoin will be custodied safely due to BIP39 standards.
The "only protected by a Pin" part only plays out if the attacker has physical access to your device. Assuming most people would also keep a copy of their seed on paper or metal washers in the same residence as their air gapped device, this just comes down to: If someone breaks into your home, you're fucked. So there's no advantage to your solution.
You don't realize how people are actually storing these things.
The pin can be a big vulnerability.
Stateheld devices are just a dumb idea for cold storage.
