public function isIssuedBy(Certificate $cert): bool
    {
        if (!$this->_acinfo->issuer()->identifiesPKC($cert)) {
            return false;
        }
        return true;
    }
public function isIssuedBy(Certificate $cert): bool
    {
        if (!$this->_acinfo->issuer()->identifiesPKC($cert)) {
            return false;
        }
        return true;
    }
public function isIssuedBy ( Certificate $ cert ) : bool { if ( ! $ this -> _acinfo -> issuer ( ) -> identifiesPKC ( $ cert ) ) { return false ; } return true ; }
Check whether attribute certificate is issued by given public key
certificate.

@param Certificate $cert Certificate
@return boolean
Check whether attribute certificate is issued by given public key certificate .