2
We need to generate an MD5 hash to pass an encrypted password. Could someone give us an example?
2
We need to generate an MD5 hash to pass an encrypted password. Could someone give us an example?
1
tries to run this example class:
public class DigestTest extends MainWindow
{
private Edit edtInput;
private ComboBox cboDigests;
private Button btnGo;
private ListBox lboResults;
private Object[] comboItems;
public DigestTest()
{
super("Digest Test", TAB_ONLY_BORDER);
try
{
comboItems = new Object[] {new MD5Digest(), new SHA1Digest(), new SHA256Digest()};
}
catch (NoSuchAlgorithmException e)
{
e.printStackTrace();
}
}
public void initUI()
{
edtInput = new Edit();
edtInput.setText("0123456789ABCDEF");
cboDigests = new ComboBox(comboItems);
cboDigests.setSelectedIndex(0);
btnGo = new Button("Go!");
lboResults = new ListBox();
lboResults.enableHorizontalScroll();
add(edtInput, LEFT + 2, TOP + 2, FILL - (btnGo.getPreferredWidth() + cboDigests.getPreferredWidth() + 6), PREFERRED);
add(cboDigests, AFTER + 2, SAME, PREFERRED, PREFERRED);
add(btnGo, AFTER + 2, SAME, PREFERRED, PREFERRED);
add(lboResults, LEFT + 2, AFTER + 2, FILL - 2, FILL - 2);
}
public void onEvent(Event e)
{
switch (e.type)
{
case ControlEvent.PRESSED:
if (e.target == btnGo)
{
Digest alg = (Digest)cboDigests.getSelectedItem();
String message = edtInput.getText();
alg.reset();
alg.update(message.getBytes());
byte[] digest = alg.getDigest();
lboResults.add("Message: " + message);
lboResults.add("Digest: " + Convert.bytesToHexString(digest) + " (" + digest.length + " bytes)");
lboResults.add("=========================");
lboResults.repaintNow();
}
break;
}
}
}
Thanks Bruno, it worked perfectly...
1
Take a look at the code below:
public static String toMD5(byte[] bytes){
MessageDigest md = null;
try {
md = MessageDigest.getInstance("MD5");
} catch (Exception e) {
throw new RuntimeException(e);
}
md.update(bytes);
BigInteger hash = new BigInteger(1, md.digest());
return hash.toString(16);
}
See you around.
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I do not understand Java so I have no way to answer. But I need to leave this here: MD5 is not a form of encryption. If you want to "pass" a password and need the MD5 so it is not seen, you have two serious security holes at hand.
– Oralista de Sistemas