jotppublic class jotp extends Applet
| Fields Summary |
|---|
| TextField | otptf | | TextField | chaltf | | TextField | pwtf | | final String | md4label | | final String | md5label | | final String | version |
| Methods Summary |
|---|
| public boolean | action(java.awt.Event evt, java.lang.Object arg)
String tmpstr, tmpstr2, seed, passphrase;
int seq, hashalg;
otp otpwd;
if (evt.target instanceof Button) {
if (arg.equals(md5label)) {
hashalg = otp.MD5;
} else {
hashalg = otp.MD4;
}
/* Split up challenge */
tmpstr = chaltf.getText();
StringTokenizer st = new StringTokenizer(tmpstr);
if (st.countTokens() != 2) {
otptf.setText("bogus challenge");
return true;
}
tmpstr2 = st.nextToken();
try {
seq = (Integer.parseInt(tmpstr2));
} catch (NumberFormatException e) {
otptf.setText("bogus sequence number '" + tmpstr2 + "'");
return true;
}
seed = st.nextToken();
passphrase = pwtf.getText();
/* passphrase = "eat me";*/
System.out.println("passphrase = " + passphrase);
otptf.setText("Okay, thinking...");
otpwd = new otp(seq, seed, passphrase, hashalg);
otpwd.calc();
otptf.setText(otpwd.toString());
}
return true;
| | public void | init()
setBackground(Color.white);
setLayout(new GridLayout(6,1));
Panel panel1 = new Panel();
add (panel1);
Font titlefont = new Font("TimesRoman", Font.BOLD, 14);
panel1.setFont(titlefont);
panel1.add(new Label(String.valueOf(version) +
": The Java OTP (aka S/Key) calculator!"));
Panel panel2 = new Panel();
panel2.setLayout(new FlowLayout());
add (panel2);
panel2.add(new Label("Challenge (e.g. \"55 latour1\"):"));
chaltf = new TextField(24);
panel2.add(chaltf);
Panel panel3 = new Panel();
panel3.setLayout(new FlowLayout());
add(panel3);
panel3.add(new Label("Secret Password:"));
pwtf = new TextField(24);
pwtf.setEchoCharacter('*");
panel3.add(pwtf);
Panel panel4 = new Panel();
panel4.setLayout(new FlowLayout());
add(panel4);
panel4.add (new Button(String.valueOf(md4label)));
panel4.add (new Button(String.valueOf(md5label)));
Panel panel6 = new Panel();
panel6.setLayout(new FlowLayout());
add(panel6);
panel6.add(new Label("One-Time Password:", Label.LEFT));
otptf = new TextField(40);
panel6.add(otptf);
Panel panel7 = new Panel();
add(panel7);
panel7.add(new Label("jotp by Harry Mantakos, " +
"http://www.cs.umd.edu/~harry/jotp"));
| | public static void | main(java.lang.String[] argv)
/* Just takes challenge info and passphrase info on the
* command line (ick) and spits out the resulting otp "words".
*
* Mainly for testing.
*/
String seed, passphrase;
int seq;
otp otpwd;
int hashalg;
String hashtype;
if ((argv.length < 3) || (argv.length > 4)) {
System.err.println("usage: jotp sequence seed passphrase" +
"[md4|md5]");
return;
}
seq = new Integer(argv[0]).intValue();
seed = new String(argv[1]);
passphrase = new String(argv[2]);
if ((argv.length == 3) || argv[3].equals("4") ||
argv[3].equals("md4") || argv[3].equals("MD4")) {
hashtype = "md4";
hashalg = otp.MD4;
} else if (argv[3].equals("5") || argv[3].equals("md5") ||
argv[3].equals("MD5")) {
hashtype = "md5";
hashalg = otp.MD5;
} else {
System.err.println("usage: jotp sequence seed passphrase " +
"[4|md4|5|md5]");
return;
}
otpwd = new otp(seq, seed, passphrase, hashalg);
System.out.println("Using " + hashtype + ". Thinking...");
otpwd.calc();
System.out.println(otpwd);
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