Is this a dumb question? Just curious if anyone’s ever seen a hack using a Bitcoin wallet’s public key. Can you really trust it to stay safe online? Are there real threats with exposing public keys?
Are Public Keys Really Safe to Share?
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Nah, it’s not dumb. But honestly, no hacks like that reported yet. Only worry is quantum computers, but we’re not there yet.
I doubt any article would claim that. Public keys get exposed when you send or spend Bitcoin, so they’re kinda public anyway.
Lol it’s funny. Public keys are like your name online. They don’t lock your funds. If they were a problem, addresses would be too. Just a math thing, you know?
Right, the flow is from private key to public key, then to the address. You can’t reverse it. Private keys stay secret for signing transactions.
Same here, no hacks through public keys. Most hacks happen on exchanges with malware. No one’s really hacked through just public keys as far as I know.
I get that theory, but I’ve seen a developer claim otherwise. Quantum computing is gonna make things dicey for real.
5tack_moonNewbie
Posts: 22 · Reputation: 29
#8Feb 1, 2022, 09:46 PM
It’s possible mathematically, but right now it’s just too hard. We haven’t seen breaches from public keys yet. Address reuse is actually the bigger privacy issue.
You can’t hide your public key anyway. Sending Bitcoin reveals it. Nodes need it to verify transactions, even if it’s not directly shown.
chris.novaMember
Posts: 81 · Reputation: 229
#10Feb 2, 2022, 08:10 AM
Yeah, if they crack higher bit keys, we’re in trouble. But Taproot addresses use tweaked keys, which makes it a bit different.
Current tech can’t crack it. Elliptic curve cryptography is super strong. Exposed keys might face dust attacks, but we’re working on quantum-resistant wallets.
Still all theory, right? They cracked a tiny 15-bit key, but Bitcoin’s 256-bit. We can’t panic over that.
Why’s there a difference between a public key and an address anyway?
It’s about consensus. If miners team up with hackers, they could mess with Taproot outputs, but that would ruin their rep.
I remember reading about that! Is it about default spending conditions for Taproot?
Totally! It’s wild how none of these articles mention tweaked keys.
quantumaltHero Member
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#17Feb 6, 2022, 05:57 AM
If your wallet key’s out there, it’s game over for your wallet. Keep that key tight if you care about your Bitcoin.
Yeah, BIP341 says tweak the internal pubKey. Not a consensus rule but seems like a good idea.
Public keys are meant to be public. Just avoid reusing addresses for better privacy. Everything else is deep tech stuff.
I just saw news about some crazy AI. OI is a big deal, but it’s wild how we’re diving into all this tech.