title: Openssl ECDSA : private key passphrase
body: <p>I am new with Openssl i have generated a private key myprivatekey.pem and a publickey mypublickey.pem with :</p>
  
  <pre><code>openssl ecparam -genkey -name secp160k1 -noout -out myprivatekey.pem
  </code></pre>
  
  <p>and my public key with :</p>
  
  <pre><code>openssl -ec  -in myprivatekey.pem -pubout -out mypublickey.pem
  </code></pre>
  
  <p>What i want to do next is to encrypte my ecdsa with a passphrase private key and make a certification request for my public key and thank you for your help.  </p>