1 files changed, 69 insertions, 0 deletions

diff --git a/src/main/java/org/gnunet/util/PeerIdentity.java b/src/main/java/org/gnunet/util/PeerIdentity.java
new file mode 100644
index 0000000..46a67cd
--- /dev/null
+++ b/src/main/java/org/gnunet/util/PeerIdentity.java
@@ -0,0 +1,69 @@
+/*
+ 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.util;
+
+
+import org.gnunet.construct.FixedSizeIntegerArray;
+import org.gnunet.construct.Message;
+
+import java.util.Arrays;
+
+
+/**
+ * Identity of a peer, stored as 512-bit public key.
+ */
+public class PeerIdentity implements Message {
+
+    @FixedSizeIntegerArray(length = 64, signed = false, bitSize = 8)
+    public byte[] data;
+
+    static final String HEXES = "0123456789ABCDEF";
+
+    /**
+     * Creates a zero-filled peer identity
+     */
+    public PeerIdentity() {
+        data = new byte[64];
+    }
+
+    public String getHex() {
+        final StringBuilder hex = new StringBuilder( 2 * data.length );
+        for (final byte b : data) {
+            hex.append(HEXES.charAt((b & 0xF0) >> 4))
+                    .append(HEXES.charAt((b & 0x0F)));
+        }
+        return hex.toString();
+    }
+
+    public String toString() {
+        return Strings.dataToString(data);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return obj != null && obj instanceof PeerIdentity && Arrays.equals(((PeerIdentity) obj).data, this.data);
+    }
+
+    @Override
+    public int hashCode() {
+        return Arrays.hashCode(data);
+    }
+}