config.setMaximumClockSkew(new BigInteger(CLOCK_SKEW));
FederationProtocolType protocol = new FederationProtocolType();
config.setProtocol(protocol);
KeyManagersType sigManager = new KeyManagersType();
sigManager.setKeyPassword(KEY_PASSWORD);
sigManager.setKeyAlias(KEY_ALIAS);
KeyStoreType sigStore = new KeyStoreType();
sigStore.setType(JKS_TYPE);
sigStore.setPassword(KEYSTORE_PASSWORD);//integrity password
sigStore.setFile(KEYSTORE_FILE);
sigManager.setKeyStore(sigStore);
config.setSigningKey(sigManager);
TrustedIssuers trustedIssuers = new TrustedIssuers();