A 12 word seed phrase has 128 bits of entropy. Astronomically strong security. 24 words is 256 bits. Ludicrous security. Layer on a hi-res photo for more astronomical entropy. Itโs like a sleep aid. ๐๐๐
@Conchster Multiple PiWalletSV wallets would be fantastic. One physical Pi device can manage any number of wallets. Other wallets? No comment. ๐๐
You are encouraged to build your own device. Source the hardware, flash the SD card, print the case, and you are on your way. And you still get full support right here. If youโd rather not deal with any of that, we have kits and cases on the site. ๐ ๐๐https://t.co/7HonTAePan
Nobody addressing the elephant in the room. If a cold wallet company is capable of this kind of error, how can you trust them? GTFO and donโt look back would be my reaction. You take this risk with any closed source solution. If only there were an open source air gap solution on open hardware. ๐ค๐ค๐ค
Key slice generates seed phrases from dice rolls, and then further slices those seed phrase into physically separate downloads or printouts. But you can just use it for the dice generator too.
1/ ColdCard just got a harsh reminder: offline โ strong seed.
A firmware bug made seed generation entropy collapse to ~40 bits (older Mk) / ~72 (newer) โ not the 128 a 12-word BIP39 phrase implies.
8/ Photo and dice never replace the OS CSPRNG. They only augment it.
Even a boring photo or predictable rolls still sit on top of full OS entropy โ so you donโt get โlooked like 128 bits, wasnโt.โ