Crypto Doesn’t Work the Way You Think It Does

I’ve been thinking a lot lately about the word 'secure.' Most of us treat it like a binary state. Something is either locked or it isn’t. In the world of crypto, we like to say things are 'unbreakable.' But as I look closer at the systems I’m building, I’m realizing that isn’t actually true.

¹

Crypto isn’t secure because the math is perfect. It’s secure because the math is currently too expensive to solve. We rely on something called Elliptic Curve Cryptography (ECC). Right now, it works because finding a private key from a public key would take a standard computer billions of years. It’s not an impossible task; it’s just an impractical one.

²

This is what I call cost asymmetry. It costs almost nothing to create a wallet, but it costs a literal lifetime of energy to break into one. We’ve built an entire industry on the assumption that this gap—this asymmetry—will stay huge forever. We treat security as a solid wall, but it's actually more like a timer.

³

If the cost of computation drops, the wall doesn't just get shorter. It disappears. We’ve been treating 'time' as a static variable in our security models, but time is moving. And in the world of quantum computing, the clock is ticking much faster than we planned for.

But the real danger isn't just that the math might get easier. It’s that when it happens, it won't be a slow decline...