public void load(InputStream is, String pword)
throws IOException, PKCSException, CertificateException {
PKCS12 p12 = new PKCS12(is);
is.close();
p12.decrypt(pword.toCharArray());
KeyBag keyBag = p12.getKeyBag();
if (null == keyBag) {
throw new PKCSException("No private key found");