title: X509 serial number using java
body: <p>I need to get some data from X509 certificate. </p>
  
  <p>If I open a certificate file in windows, its showing its serial number in this format.</p>
  
  <pre><code>ex. 39 65 70 eb d8 9f 28 20 4e c2 a0 6b 98 48 31 0d 
  </code></pre>
  
  <p>The same data I am trying to obtain using java. After get it loaded, I use </p>
  
  <pre><code>x509.getSerialNumber();
  and result is : 76292708057987193002565060032465481997
  </code></pre>
  
  <p>So what is the difference between both of these ? I want the result as upper one. </p>