diff src/ch/ethz/ssh2/packets/PacketKexDHReply.java @ 273:91a31873c42a ganymed

start conversion from trilead to ganymed
author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 11:21:46 -0700
parents
children 071eccdff8ea
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line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ch/ethz/ssh2/packets/PacketKexDHReply.java	Fri Jul 18 11:21:46 2014 -0700
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
+ * Please refer to the LICENSE.txt for licensing details.
+ */
+package ch.ethz.ssh2.packets;
+
+import java.io.IOException;
+import java.math.BigInteger;
+
+import ch.ethz.ssh2.PacketFormatException;
+import ch.ethz.ssh2.PacketTypeException;
+
+/**
+ * @author Christian Plattner
+ * @version $Id: PacketKexDHReply.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
+ */
+public final class PacketKexDHReply {
+
+    private final byte[] payload;
+
+    private final byte[] hostKey;
+    private final BigInteger f;
+    private final byte[] signature;
+
+    public PacketKexDHReply(byte[] hostKey, BigInteger f, byte[] signature) {
+        this.hostKey = hostKey;
+        this.f = f;
+        this.signature = signature;
+        TypesWriter tw = new TypesWriter();
+        tw.writeByte(Packets.SSH_MSG_KEXDH_REPLY);
+        tw.writeString(hostKey, 0, hostKey.length);
+        tw.writeMPInt(f);
+        tw.writeString(signature, 0, signature.length);
+        payload = tw.getBytes();
+    }
+
+    public PacketKexDHReply(byte payload[]) throws IOException {
+        this.payload = payload;
+
+        TypesReader tr = new TypesReader(payload);
+
+        int packet_type = tr.readByte();
+
+        if(packet_type != Packets.SSH_MSG_KEXDH_REPLY) {
+            throw new PacketTypeException(packet_type);
+        }
+        hostKey = tr.readByteString();
+        f = tr.readMPINT();
+        signature = tr.readByteString();
+
+        if(tr.remain() != 0) {
+            throw new PacketFormatException(String.format("Padding in %s", Packets.getMessageName(packet_type)));
+        }
+    }
+
+    public byte[] getPayload() {
+        return payload;
+    }
+
+    public BigInteger getF() {
+        return f;
+    }
+
+    public byte[] getHostKey() {
+        return hostKey;
+    }
+
+    public byte[] getSignature() {
+        return signature;
+    }
+}