What's your preferred method for air-gapped transactions?
1455 sats \ 12 comments \ @EntropyBearer 27 Jun bitcoin
I think QR Codes are hard to beat for their convenience. I guess NFC is a close second for me, but it is not as available on computers as it is on smartphones, so... As for moving PSBTs with microSD cards, I've never done it.
QR Codes38.1%
microSD19.0%
NFC0.0%
Nice try, fed!42.9%
21 votes \ poll ended
write
preview
related posts
65 sats \ 1 reply \ @DarthCoin 27 Jun
Check this out https://github.com/supertestnet/utxo-dealership
reply
0 sats \ 0 replies \ @EntropyBearer OP 27 Jun
Hum... It's a cool concept, but I'm having trouble understanding how it "breaks" the link between the UTXOs.
What I'm trying to say is that in a regular coinjoin multiple parties are engaging, so there are many outputs and there is no clear way of linking who owns what.
However, in utxo-dealership, from what I could understand, there is just the buyer and the seller, so how could the "link" be broken (to provide privacy)?
reply
1 sat \ 1 reply \ @nullama 27 Jun
Signing transactions with a camera is the coolest thing ever. It just feels like the future.
NFC is also pretty cool though...
MicroSD is a bit meh, just too normal. Everyone copies data from usb drives, etc.
reply
0 sats \ 0 replies \ @EntropyBearer OP 27 Jun
Signing transactions with a camera is the coolest thing ever. It just feels like the future.
It really gives "magic internet money" vibes.
reply
1 sat \ 3 replies \ @Bitcoiner1 27 Jun
The problem with the qr codes is that you need good quality cameras.
I remember trying to use this feature with my laptop camera...and it was impossible.
reply
1 sat \ 1 reply \ @nullama 27 Jun
I've used laptop cameras with no issue whatsoever.
Might be that the QR code is too small or your camera is too far? Maybe moving too much?
QR codes are really robust, and usually work really well.
reply
0 sats \ 0 replies \ @EntropyBearer OP 27 Jun
My Chromebook would disagree. A kids' toy has a better camera than my laptop. Even adjusting QR density doesn't help here.
And even funnier, the Jade camera, which must have half a pixel for resolution, manages to scan QR codes just fine.
reply
0 sats \ 0 replies \ @EntropyBearer OP 27 Jun
Oh, yeah. Laptop cameras are usually poop quality. It's a funny dance when I'm trying to make Sparrow understand the QR I'm showing.
reply
0 sats \ 0 replies \ @sime 27 Jun
None, after reading this https://bitbox.swiss/blog/does-airgap-make-bitcoin-hardware-wallets-more-secure/
reply
0 sats \ 1 reply \ @itsrealfake 27 Jun
I got stumped the other day trying to sign a PSBT without an SD card reader. it was a bit of a bummer. fortunately i had a backup wallet to use...
reply
0 sats \ 0 replies \ @EntropyBearer OP 27 Jun
Honestly, I never had the urge to do a transaction by microSD — too much friction.
reply
0 sats \ 0 replies \ @NaOD 27 Jun outlawed
stackers have outlawed this. turn on wild west mode in your /settings to see outlawed content.