title: What RSA key length should I use for my SSL certificates?
body: <p>I'm in the process of creating a CSR, and I wonder which is arguably the best length for my RSA key.</p>
  
  <p>Of course, 384 is probably too weak, and 16384 is probably too slow.</p>
  
  <p><strong>Is there a consensus on the key length one should use, depending on the certificate lifetime?</strong></p>
  
  <p>Edit : 
  Like most people, I want my key to be reasonably strong. I'm not concerned that the NSA could maybe break my key in 2019. I just want to know what's the best practice when one plan to do normal business (for example an e-commerce site)</p>