private void encryptAndSend(Message msg) throws Exception { EncryptHeader hdr = new EncryptHeader(EncryptHeader.ENCRYPT, getSymVersion()); if (this.encrypt_entire_message) hdr.type |= EncryptHeader.ENCRYPT_ENTIRE_MSG; if (encrypt_entire_message) { if (msg.getSrc() == null) msg.setSrc(local_addr); Buffer serialized_msg = Util.streamableToBuffer(msg); byte[] encrypted_msg = code( serialized_msg.getBuf(), serialized_msg.getOffset(), serialized_msg.getLength(), false); // exclude existing headers, they will be seen again when we decrypt and unmarshal the msg at // the receiver Message tmp = msg.copy(false, false).setBuffer(encrypted_msg).putHeader(this.id, hdr); down_prot.down(new Event(Event.MSG, tmp)); return; } // copy neeeded because same message (object) may be retransmitted -> no double encryption Message msgEncrypted = msg.copy(false) .putHeader(this.id, hdr) .setBuffer(code(msg.getRawBuffer(), msg.getOffset(), msg.getLength(), false)); down_prot.down(new Event(Event.MSG, msgEncrypted)); }