Can someone obtain the private key from the public key?

Question

I know the keys are random but have been linked together. This is proven by visiting ethereum database found here and here. I have confirmed several public and private keys at myetherwallet.com (with and without balance, including my own -- all are a match).

So my next question is.... if you cannot obtain a private key by only the public key, how was the database type websites created above? Why is the info on the site accurate? I have noticed the only thing searchable is private keys, not public key.

I'm voting to close this question as off-topic because it isn't a programming question. — President James K. Polk, Jul 23 '18 at 19:48
No. I am entitled to ask whatever I want to ask. How's the weather over there? — Nicole Marie, Jul 23 '18 at 21:28

score 0 · Answer 1 · answered Jul 23 '18 at 06:45

0

You can (easily) derive a public key from a private key. Going the other way is practically impossible.

The pages you link to are just showing possible private keys in numerical order, and next to each, they're showing the derived public key.

answered Jul 23 '18 at 06:45

user94559

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How did the person(s) create these pages? – Nicole Marie Jul 23 '18 at 11:43
They wrote code? The first column is a for loop counting up from 0, and the second column is just the derived address (some simple math). – user94559 Jul 23 '18 at 13:46
What do you mean by loop? Could you explain? – Nicole Marie Jul 23 '18 at 14:34
This is a website for programming questions. If you don't know what a "for loop" is, you're in the wrong place. – user94559 Jul 23 '18 at 14:35

Can someone obtain the private key from the public key?

1 Answers1