public function getCacheKey()
  {
    if (!$this->useCache) {
      return false;
    }
    $h = $this->sub;
    $h .= $this->assertionType;
    $h .= $this->privateKey;
    $h .= $this->scopes;
    $h .= $this->serviceAccountName;
    return md5($h);
  }
public function getCacheKey()
  {
    if (!$this->useCache) {
      return false;
    }
    $h = $this->sub;
    $h .= $this->assertionType;
    $h .= $this->privateKey;
    $h .= $this->scopes;
    $h .= $this->serviceAccountName;
    return md5($h);
  }
public function getCacheKey ( ) { if ( ! $ this -> useCache ) { return false ; } $ h = $ this -> sub ; $ h .= $ this -> assertionType ; $ h .= $ this -> privateKey ; $ h .= $ this -> scopes ; $ h .= $ this -> serviceAccountName ; return md5 ( $ h ) ; }
Generate a unique key to represent this credential.
@return string
Generate a unique key to represent this credential .