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diff --git a/src/main/java/org/gnunet/hello/HelloMessage.java b/src/main/java/org/gnunet/hello/HelloMessage.java
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+++ b/src/main/java/org/gnunet/hello/HelloMessage.java
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+/*
+ This file is part of GNUnet.
+ (C) 2011, 2012 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING.  If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+ */
+
+package org.gnunet.hello;
+
+import org.gnunet.construct.*;
+import org.gnunet.peerinfo.RsaPublicKeyBinaryEncoded;
+
+/**
+ * A HELLO message is used to exchange information about
+ * transports with other peers.  This struct is always
+ * followed by the actual network addresses which have
+ * the format:
+ *
+ * 1) transport-name (0-terminated)
+ * 2) address-length (uint16_t, network byte order; possibly
+ *    unaligned!)
+ * 3) address expiration (GNUNET_TIME_AbsoluteNBO); possibly
+ *    unaligned!)
+ * 4) address (address-length bytes; possibly unaligned!)
+ *
+ * @author Florian Dold
+ */
+public class HelloMessage implements Message {
+    @UInt32
+    public int reserved;
+
+    @NestedMessage
+    public RsaPublicKeyBinaryEncoded publicKey;
+
+    @FillWith @UInt8
+    public byte[] addresses;
+}