title: javax.faces.FacesException: Cannot find public key for catpcha
body: <p>I want to implement captcha in my application, but i get this error can anybody tell me reason ??</p>
  
  <blockquote>
    <p>juin 01, 2014 12:22:04 PM com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback visit
    GRAVE: javax.faces.FacesException: Cannot find public key for catpcha, use primefaces.PUBLIC_CAPTCHA_KEY context-param to define one</p>
  </blockquote>