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1
2 import com.jcraft.jsch.*;
3 import javax.swing.*;
4
5 class KeyGen{
6 public static void main(String  [] arg){
7 if(arg.length<3){
8 System.err.println(
9 "usage: java KeyGen rsa output_keyfile comment\n"+
10 " java KeyGen dsa output_keyfile comment");
11 System.exit(-1);
12 }
13 String _type=arg[0];
14 int type=0;
15 if(_type.equals("rsa")){type=KeyPair.RSA;}
16 else if(_type.equals("dsa")){type=KeyPair.DSA;}
17 else {
18 System.err.println(
19 "usage: java KeyGen rsa output_keyfile comment\n"+
20 " java KeyGen dsa output_keyfile comment");
21 System.exit(-1);
22 }
23 String filename=arg[1];
24 String comment=arg[2];
25
26 JSch jsch=new JSch();
27
28 String passphrase="";
29 JTextField passphraseField=(JTextField)new JPasswordField(20);
30 Object [] ob={passphraseField};
31 int result=
32 JOptionPane.showConfirmDialog(null, ob, "Enter passphrase (empty for no passphrase)",
33 JOptionPane.OK_CANCEL_OPTION);
34 if(result==JOptionPane.OK_OPTION){
35 passphrase=passphraseField.getText();
36 }
37
38 try{
39 KeyPair kpair=KeyPair.genKeyPair(jsch, type);
40 kpair.setPassphrase(passphrase);
41 kpair.writePrivateKey(filename);
42 kpair.writePublicKey(filename+".pub", comment);
43 System.out.println("Finger print: "+kpair.getFingerPrint());
44 kpair.dispose();
45 }
46 catch(Exception e){
47 System.out.println(e);
48 }
49 System.exit(0);
50 }
51 }
52 |
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