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1
2 import com.jcraft.jsch.*;
3 import java.awt.*;
4 import javax.swing.*;
5
6 public class AES{
7 public static void main(String  [] arg){
8
9 try{
10 JSch jsch=new JSch();
11
12
14 String host=JOptionPane.showInputDialog("Enter username@hostname",
15 System.getProperty("user.name")+
16 "@localhost");
17 String user=host.substring(0, host.indexOf('@'));
18 host=host.substring(host.indexOf('@')+1);
19
20 Session session=jsch.getSession(user, host, 22);
21
23 UserInfo ui=new MyUserInfo();
25 session.setUserInfo(ui);
26
27 java.util.Hashtable config=new java.util.Hashtable ();
28 config.put("cipher.s2c", "aes128-cbc,3des-cbc,blowfish-cbc");
29 config.put("cipher.c2s", "aes128-cbc,3des-cbc,blowfish-cbc");
30 session.setConfig(config);
31
32 session.connect();
33
34 Channel channel=session.openChannel("shell");
35
36 channel.setInputStream(System.in);
37 channel.setOutputStream(System.out);
38
39 channel.connect();
40 }
41 catch(Exception e){
42 System.out.println(e);
43 }
44 }
45
46 public static class MyUserInfo implements UserInfo, UIKeyboardInteractive{
47 public String getPassword(){ return passwd; }
48 public boolean promptYesNo(String str){
49 Object [] options={ "yes", "no" };
50 int foo=JOptionPane.showOptionDialog(null,
51 str,
52 "Warning",
53 JOptionPane.DEFAULT_OPTION,
54 JOptionPane.WARNING_MESSAGE,
55 null, options, options[0]);
56 return foo==0;
57 }
58
59 String passwd;
60 JTextField passwordField=(JTextField)new JPasswordField(20);
61
62 public String getPassphrase(){ return null; }
63 public boolean promptPassphrase(String message){ return true; }
64 public boolean promptPassword(String message){
65 Object [] ob={passwordField};
66 int result=
67 JOptionPane.showConfirmDialog(null, ob, message,
68 JOptionPane.OK_CANCEL_OPTION);
69 if(result==JOptionPane.OK_OPTION){
70 passwd=passwordField.getText();
71 return true;
72 }
73 else{
74 return false;
75 }
76 }
77 public void showMessage(String message){
78 JOptionPane.showMessageDialog(null, message);
79 }
80 final GridBagConstraints gbc =
81 new GridBagConstraints(0,0,1,1,1,1,
82 GridBagConstraints.NORTHWEST,
83 GridBagConstraints.NONE,
84 new Insets(0,0,0,0),0,0);
85 private Container panel;
86 public String [] promptKeyboardInteractive(String destination,
87 String name,
88 String instruction,
89 String [] prompt,
90 boolean[] echo){
91 panel = new JPanel();
92 panel.setLayout(new GridBagLayout());
93
94 gbc.weightx = 1.0;
95 gbc.gridwidth = GridBagConstraints.REMAINDER;
96 gbc.gridx = 0;
97 panel.add(new JLabel(instruction), gbc);
98 gbc.gridy++;
99
100 gbc.gridwidth = GridBagConstraints.RELATIVE;
101
102 JTextField[] texts=new JTextField[prompt.length];
103 for(int i=0; i<prompt.length; i++){
104 gbc.fill = GridBagConstraints.NONE;
105 gbc.gridx = 0;
106 gbc.weightx = 1;
107 panel.add(new JLabel(prompt[i]),gbc);
108
109 gbc.gridx = 1;
110 gbc.fill = GridBagConstraints.HORIZONTAL;
111 gbc.weighty = 1;
112 if(echo[i]){
113 texts[i]=new JTextField(20);
114 }
115 else{
116 texts[i]=new JPasswordField(20);
117 }
118 panel.add(texts[i], gbc);
119 gbc.gridy++;
120 }
121
122 if(JOptionPane.showConfirmDialog(null, panel,
123 destination+": "+name,
124 JOptionPane.OK_CANCEL_OPTION,
125 JOptionPane.QUESTION_MESSAGE)
126 ==JOptionPane.OK_OPTION){
127 String [] response=new String [prompt.length];
128 for(int i=0; i<prompt.length; i++){
129 response[i]=texts[i].getText();
130 }
131 return response;
132 }
133 else{
134 return null; }
136 }
137 }
138 }
139
140
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