1 /* 2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. 3 * Please refer to the LICENSE.txt for licensing details. 4 */ 5 package ch.ethz.ssh2.packets; 6 7 import java.io.IOException; 8 9 import java.math.BigInteger; 10 11 /** 12 * PacketKexDhGexGroup. 13 * 14 * @author Christian Plattner 15 * @version 2.50, 03/15/10 16 */ 17 public class PacketKexDhGexGroup 18 { 19 byte[] payload; 20 21 BigInteger p; 22 BigInteger g; 23 24 public PacketKexDhGexGroup(byte payload[], int off, int len) throws IOException 25 { 26 this.payload = new byte[len]; 27 System.arraycopy(payload, off, this.payload, 0, len); 28 29 TypesReader tr = new TypesReader(payload, off, len); 30 31 int packet_type = tr.readByte(); 32 33 if (packet_type != Packets.SSH_MSG_KEX_DH_GEX_GROUP) 34 throw new IllegalArgumentException( 35 "This is not a SSH_MSG_KEX_DH_GEX_GROUP! (" + packet_type 36 + ")"); 37 38 p = tr.readMPINT(); 39 g = tr.readMPINT(); 40 41 if (tr.remain() != 0) 42 throw new IOException("PADDING IN SSH_MSG_KEX_DH_GEX_GROUP!"); 43 } 44 45 public BigInteger getG() 46 { 47 return g; 48 } 49 50 public BigInteger getP() 51 { 52 return p; 53 } 54 } 55
