title: Can someone obtain the private key from the public key?
body: <p>I know the keys are random but have been linked together. This is proven by visiting ethereum database found <a href="http://ethdir.io/2" rel="nofollow noreferrer">here</a> and <a href="http://www.ethersecret.com/3" rel="nofollow noreferrer">here</a>. I have confirmed several public and private keys at myetherwallet.com (with and without balance, including my own -- all are a match). </p>
  
  <p>So my next question is.... if you <em>cannot</em> 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. </p>