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5 sats \ 1 reply \ @Aardvark 5h \ on: [DIY] Open-source Bitcoin signing device for less than 25 bucks bitcoin
That's incredibly clever, I would have never considered using that method of signing for anything other than credit card purchases.
Smartcards are incredibly powerful yet often underrated! They can be used to securely store a variety of Bitcoin-related secrets, including your seed phrase, PIN code, and wallet descriptor. All of this data is safely stored within the secure element, and access to the memory is protected by a personal PIN code, ranging from 4 to 16 characters.
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