Help with wep key

Hello,
I have a real problem and wondered if someone could help, i have a linksys wrk 54g wireless broadband router. I bought this to use with my laptop.
My laptop has broken and i do not have a pci wireless adaptor for my computer so i cannot access the router setting.... silly thing is that i have not used the router for so long i cannot connect to the wireless.
My sons nintendo ds used to use the wireless and i can see from the settings the wep was set to 10 charactors.
Is there anything you can think or do i just bin the router.
kind regards

You can try to hardwired your computer to the router, And access the router's user interface(Just leave the username balnk and the password id asmin), and go to the wireless tab thenb under wireless tab click on wireless security/. and check it for yourself what the password is for your wireless. ^_^
Many thanks,
Akira893
wE dOnt gEt mAd! wE gEt evEn!
^_^

Similar Messages

I need help with Creating Key Pairs

Hello,
I need help with Creating Key Pairs, I generate key pais with aba provider, but the keys generated are not base 64.
the class is :
import java.io.*;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import au.net.aba.crypto.provider.ABAProvider;
class CreateKeyPairs {
private static KeyPair keyPair;
private static KeyPairGenerator pairGenerator;
private static PrivateKey privateKey;
private static PublicKey publicKey;
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.out.println("Usage: java CreateKeyParis public_key_file_name privete_key_file_name");
return;
createKeys();
saveKey(args[0],publicKey);
saveKey(args[1],privateKey);
private static void createKeys() throws Exception {
Security.addProvider(new ABAProvider());
pairGenerator = KeyPairGenerator.getInstance("RSA","ABA");
pairGenerator.initialize(1024, new SecureRandom());
keyPair = pairGenerator.generateKeyPair();
privateKey = keyPair.getPrivate();
publicKey = keyPair.getPublic();
private synchronized static void saveKey(String filename,PrivateKey key) throws Exception {
ObjectOutputStream out= new ObjectOutputStream(new FileOutputStream(filename));
out.writeObject(key);
out.close();
private synchronized static void saveKey(String filename,PublicKey key) throws Exception {
ObjectOutputStream out= new ObjectOutputStream( new FileOutputStream(filename));
out.writeObject(key);
out.close();
the public key is:
�� sr com.sun.rsajca.JSA_RSAPublicKeyrC�� xr com.sun.rsajca.JS_PublicKey~5< ~��% L thePublicKeyt Lcom/sun/rsasign/p;xpsr com.sun.rsasign.anm��9�[ [ at [B[ bq ~ xr com.sun.rsasign.p��(!g�� L at Ljava/lang/String;[ bt [Ljava/lang/String;xr com.sun.rsasign.c�"dyU�| xpt Javaur [Ljava.lang.String;��V��{G xp q ~ ur [B��T� xp ��ccR}o��[!#I��lo��
��^"`8�|��Z>��&
d ��"B��
^5��a��jw9��D��D�)�*3/h��7�|��I�d�$�4f�8_�|��yuq ~
How i can generated the key pairs in base 64 or binary????
Thanxs for help me
Luis Navarro Nu�ez
Santiago.
Chile.
South America.

I don't use ABA but BouncyCastle
this could help you :
try
java.security.Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
java.security.KeyPairGenerator kg = java.security.KeyPairGenerator.getInstance("RSA","BC");
java.security.KeyPair kp = kg.generateKeyPair();
java.security.Key pub = kp.getPublic();
java.security.Key pri = kp.getPrivate();
System.out.println("pub: " + pub);
System.out.println("pri: " + pri);
byte[] pub_e = pub.getEncoded();
byte[] pri_e = pri.getEncoded();
java.io.PrintWriter o;
java.io.DataInputStream i;
java.io.File f;
o = new java.io.PrintWriter(new java.io.FileOutputStream("d:/pub64"));
o.println(new sun.misc.BASE64Encoder().encode(pub_e));
o.close();
o = new java.io.PrintWriter(new java.io.FileOutputStream("d:/pri64"));
o.println(new sun.misc.BASE64Encoder().encode(pri_e));
o.close();
java.io.BufferedReader br = new java.io.BufferedReader(new java.io.FileReader("d:/pub64"));
StringBuffer keyBase64 = new StringBuffer();
String line = br.readLine ();
while(line != null)
keyBase64.append (line);
line = br.readLine ();
byte [] pubBytes = new sun.misc.BASE64Decoder().decodeBuffer(keyBase64.toString ());
br = new java.io.BufferedReader(new java.io.FileReader("d:/pri64"));
keyBase64 = new StringBuffer();
line = br.readLine ();
while(line != null)
keyBase64.append (line);
line = br.readLine ();
byte [] priBytes = new sun.misc.BASE64Decoder().decodeBuffer(keyBase64.toString ());
java.security.KeyFactory kf = java.security.KeyFactory.getInstance("RSA","BC");
java.security.Key pubKey = kf.generatePublic(new java.security.spec.X509EncodedKeySpec(pubBytes));
System.out.println("pub: " + pubKey);
java.security.Key priKey = kf.generatePrivate(new java.security.spec.PKCS8EncodedKeySpec(priBytes));
System.out.println("pri: " + priKey);
catch(Exception e)
e.printStackTrace ();
}

Still Having Problem With WEP Key

Hi:
I have been reading this forum and looking for WEP related topic however I still haven't solved my problem. So here is my problem and see if anyone from this forum can help.
I set my linksys to make WEP key mandatory. I used 128 bit key and was able to generate 104 bit key (26 hex digits). It works fine on my wife laptop (COMPAQ), it can communicate using this key. However it never works on my IBM/Lenovo T43P. The only difference is I am running Funk/Juniper Odyssey Client Manager software. Yes I have entered the 26 hex key properly and still doesn't work. It does work however if I disable the WEP key. Any idea what the problem is?
I took my laptop to my brothers house who is using DLINK router and use a different WEP and it works fine. So it seems like this WEP key doesn't work with my Linksys router. By the way my Linksys router is BEFW11S4.
Thanks,
Jim

If your one laptop is already working iwth same 28bits WEP key ..... i dont think so that there is any issue with router ......
You can configure the Odyssey Client Manager as per the settings in the router ....
Still if you want you can use WEP 64 bits key on the router ...check on both the laptops if they are able to access interent .....

Problem connecting to non-apple routers with WEP key

Hi there, have tried to connect to two wireless routers recently which have WEP keys. One gives me "Connection timed out" after about 5 seconds and the other says "incompatible security". The passcode is too long to enter if I choose any of the WEP 40/128-bit options (it's 32 characters long!)
Any help appreciated.
Thanks,
Jon

Hi.
I can't connect to WEP networks either with Leopard 10.5.1.
It just says "incompatible Security". I've tried it for one hour without any luck.
Why doesn't Apple realize that there are millions of WEP encrypted networks out there and that it is essential to be able to connect to them. (it worked with Tiger, didn't it?)
Is there a knowledge base article out there what to do about it?
I just can't walk to hotel managers and ask them to switch to WPA, especially if they don't have a clue how to do that and older windows computers won't be able to connect any more.
Why a transparent menu bar but no way to connect to WEP networks?
I'm very disappointed. Apple, fix this! (now!)
Is there actually a way to get your money back for Leopard if this basic things don't work anymore?
Thank you for any help.

No able to connect to router with WEP key

I want to connect to a router with a 10 digit hex WEP key. Entering this key into Airport, I says that the password is invalid. Using a XP system, I use the same key with a shared autentication option. How can I wireless connect to this router. I know the SSID name. I tried also to start with a $ sign, but no success.

Put a $ sign in front of the password. So if your password is bnghtybngh type in $bnghtybngh.

Macbook not access work or home networks with wep key

I have just purchased a Macbook. It is to be used for work and home purposes. The work network is a given, and can not be changed. It requires a wep key that is 26 charcters long. When I input this via the Network instructions on my Macbook, it is not recognized. I have tried putting the prefix '$' in front, and '0x', and '0X' and placing in '"' (double quotes) and NO LUCK! I can't get into the network. This is no issue with multiple Windows PC's that I have. I can also access via pocket PC, and Cingular 8125 smartphone, but not Macbook.
At home, I can not access my network, a 2wire router, without disabling the wep key. Not acceptable. I have 2 Windows PC's that work fine on this network, with a 13 character wep key. Have tried the $ and all the other hints and no luck.
Suggestions please! I purchased this Macbook to be able to show that it could be a more reliable and productive machine, working in the office environment. So far, can't get into the office environment!
Thanks
Macbook Mac OS X (10.4.6)

Ok, some progress, but not in yet. I was able to "connect", but have no Internet connection. On the "Network Diagnostics", I have a green light for "AirPort", "Airport Settings", "Network Settings", BUT I have a red light for "ISP", "Internet" and "Server". I checked by "Sharing" settings, and have the Firewall On, since I know that the company requires such (tried with it off, and same status). Are there some ports I need to open? What other steps do I need to take to get beyond "connected" and really access the internet??
Thanks,

Help with Unique Key Insert!!!

I need help with this <<removed by moderator>>
When i try to do an insert "A" into a DB table, the transaction fills the info on creation mode, but is not doing the same at modification mode.
Here i send the insert, i don't if the problems comes from sintaxis:
INSERT zpsprctr_det FROM TABLE it_planif ACCEPTING DUPLICATE KEYS.
tabal base datos es la zpsprctr_det
Any ideas please let me know
Moderator Message: Gun-to-the-head-deadline removed
Edited by: kishan P on Mar 31, 2011 12:24 PM

Hi,
with
INSERT dbtable FROM TABLE itab ACCEPTING DUPLICATE KEYS.
you will insert several lines in a database table from an internal table. Duplicate keys are ignored, the 1st entry is written.
To update them, you should use
MODIFY dbtable FROM TABLE itab.
This updates all lines that are existing or inserts all lines that are still missing. If you have duplicate keys here, the last entry will do the last update.
Regards,
Klaus

Help locating WEP key?

I am using a linksys router and I have misplaced the WEP key and I am trying to set up a new home network.
I have typed in ipconfig in the run box and saw that the ip address seemed to be listed there, then I typed that ip address into the url bar in the hopes to reach my routers home page, but as soon as I hit 'go' on the url it adds a http:// in front of the 192. etc and gives me a google search results?
I know I am not an idiot, I know I am putting in the url and not the google search box, so what on earth am I doing wrong?
I need the routers home page to find my WEP key right?
CM Sparkplug

I did try pulling the power but when you say reboot are you talking about a hard reset by pressing the reset button?

Tecra A8: Unable to set up a wireless connection with WEP KEY encription

Hello.
I've just got a new TECRA A8-143, and I'm unable to connect to my 3COM wireless ADSL Modem when the WEP Key encription in enabled. As soon as the encription is switched off I'm connected to the internet, any suggestions!!
Thanks

Delete the wireless profile in the intel software under profiles. Then search for new networks while WEP or WPA is switched on in the router. The intel software should find it. Then press connect - it should ask you for the key. Type in the correct key or passphrase and it should work.

No primary key in database table.Need help with ODS keys.

Hi ,
I am pulling data from a database table where there in no primary key . So when I designed my ODS and loaded the data , the records got overwritten...(If there are 5000 records only 4000 got transfered) . So Now the only option I can think of is putting all the database fields as key fields in my ODS but then I am restricted to only 16 fields for ODS and I have more than 24 fields in my database table.What should I do now.Any help will be appreciated.
Thanks a lot!!!

Hi,
are you trying to pull data from structures.....putting all the fields in the key fields is the ODS keys is not a solution.
what is your reporting requirement....try to maintain the keys for which you want to see the data
e.g. if in report you want to see the data for sales order then put the keys as sales order for ODS...so that the data is correct at the sales order level.
ie. the try to maintain the ODS at the level ...which can be used.
This is the just a guide....you can decide with your requirement.
Thanks

Help with understanding key event propagation

Hello,
I am hoping someone can help me understand a few things which are not clear to me with respect to handling of key events by Swing components. My understanding is summarized as:
(1) Components have 3 input maps which map keys to actions
one for when they are the focused component
one for when they are an ancestor of the focused component
one for when they are in the same window as the focused component
(2) Components have a single action map which contains actions to be fired by key events
(3) Key events go to the currently focused component
(4) Key events are consumed by the first matching action that is found
(5) Key events are sent up the containment hierarchy up to the window (in which case components with a matching mapping in the WHEN_IN_FOCUSED_WINDOW map are searched for)
(6) The first matching action handles the event which does not propagate further
I have a test class (source below) and I obtained the following console output:
Printing keyboard map for Cancel button
Level 0
Key: pressed C
Key: released SPACE
Key: pressed SPACE
Level 1
Key: pressed SPACE
Key: released SPACE
Printing keyboard map for Save button
Level 0
Key: pressed SPACE
Key: released SPACE
Level 1
Key: pressed SPACE
Key: released SPACE
Printing keyboard map for Main panel
Event: cancel // typed SPACE with Cancel button having focus
Event: save // typed SPACE with Save button having focus
Event: panel // typed 'C' with panel having focus
Event: panel // typed 'C' with Cancel button having focus
Event: panel // typed 'C' with Save button having focus
I do not understand the following aspects of its behaviour (tested on MacOSX although I believe the behaviour is not platform dependent):
(1) I assume that the actions are mapped to SPACE since the spacebar clicks the focused component but I don't explicitly set it?
(2) assuming (1) is as I described why are there two mappings, one for key pressed and one for key released yet the 'C' key action only has a key pressed set?
(3) assuming (1) and (2) are true then why don't I get the action fired twice when I typed the spacebar, once when I pressed SPACE and again when I released SPACE?
(4) I read that adding a dummy action with the value "none" (i.e. the action is the string 'none') should hide the underlying mappings for the given key, 'C' the my example so why when I focus the Cancel button and press the 'C' key do I get a console message from the underlying panel action (the last but one line in the output)?
Any help appreciated. The source is:
import javax.swing.*;
public class FocusTest extends JFrame {
     public FocusTest ()     {
          initComponents();
          setTitle ("FocusTest");
          setLocationRelativeTo (null);
          setSize(325, 160);
          setVisible (true);
     public static void main (String[] args) {
          new FocusTest();
private void initComponents()
     JPanel panTop = new JPanel();
          panTop.setBackground (java.awt.Color.RED);
JLabel lblBanner = new javax.swing.JLabel ("PROPERTY TABLE");
lblBanner.setFont(new java.awt.Font ("Lucida Grande", 1, 14));
lblBanner.setHorizontalAlignment (javax.swing.SwingConstants.CENTER);
          panTop.add (lblBanner);
          JPanel panMain = new JPanel ();
          JLabel lblKey = new JLabel ("Key:");
          lblKey.setFocusable (true);
          JLabel lblValue = new JLabel ("Value:");
JTextField tfKey = new JTextField(20);
JTextField tfValue = new JTextField(20);
JButton btnCancel = new JButton (createAction("cancel"));     // Add a cancel action.
JButton btnSave = new JButton (createAction("save"));          // Add a sve action.
          panMain.add (lblKey);
          panMain.add (tfKey);
          panMain.add (lblValue);
          panMain.add (tfValue);
          panMain.add (btnCancel);
          panMain.add (btnSave);
          add (panTop, java.awt.BorderLayout.NORTH);
          add (panMain, java.awt.BorderLayout.CENTER);
setDefaultCloseOperation (javax.swing.WindowConstants.EXIT_ON_CLOSE);
// Add an action to the panel for the C key.
          panMain.getInputMap (JComponent.WHEN_IN_FOCUSED_WINDOW).put (KeyStroke.getKeyStroke (java.awt.event.KeyEvent.VK_C, 0), "panel");
          panMain.getActionMap ().put ("panel", createAction("panel"));
          // FAILS ???
          // Add an empty action to the Cancel button to block the underlying panel C key action.
btnCancel.getInputMap().put (KeyStroke.getKeyStroke (java.awt.event.KeyEvent.VK_C, 0), "none");
// Print out the input map contents for the Cancel and Save buttons.
System.out.println ("\nPrinting keyboard map for Cancel button");
printInputMaps (btnCancel);
System.out.println ("\nPrinting keyboard map for Save button");
printInputMaps (btnSave);
          // FAILS NullPointer because the map contents are null ???
System.out.println ("\nPrinting keyboard map for Main panel");
// printInputMaps (panMain);
private AbstractAction createAction (final String actionName) {
     return new AbstractAction (actionName) {
          public void actionPerformed (java.awt.event.ActionEvent evt) {
               System.out.println ("Event: " + actionName);
private void printInputMaps (JComponent comp) {
     InputMap map = comp.getInputMap();
     printInputMap (map, 0);
private void printInputMap (InputMap map, int level) {
     System.out.println ("Level " + level);
     InputMap parent = map.getParent();
     Object[] keys = map.allKeys();
     for (Object key : keys) {
          if (key.equals (parent)) {
               continue;
          System.out.println ("Key: " + key);
     if (parent != null) {
          level++;
          printInputMap (parent, level);
Thanks,
Tim Mowlem

Use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the posted code retains its original formatting.
1) In the Metal LAF the space bar activates the button. In the Windows LAF the Enter key is used to activate the button. Therefore these bindings are added by the LAF.
2) The pressed binding paints the button in its pressed state. The released binding paint the button in its normal state. Thats why the LAF adds two bindings.
In your case you only added a single binding.
3) The ActionEvent is only fired when the key is released. Same as a mouse click. You can hold the mouse down as long as you want and the ActionEvent isn't generated until you release the mouse. In fact, if you move the mouse off of the button before releasing the button, the ActionEvent isn't even fired at all. The mouse pressed/released my be generated by the same component.
4) Read (or reread) the [url http://java.sun.com/docs/books/tutorial/uiswing/misc/keybinding.html#howto]How to Remove Key Bindings section. "none" is only used to override the default action of a component, it does not prevent the key stroke from being passed on to its parent.

Please help with Posting Keys For Fast Entry (t.code OBXJ)

Dear experts,
Please help me to be more familiar with configurtation of Enjoy Transactions (t.code OBXJ). I want to configure fast entry transaction and change standard assignement of posting key. But there are no editing options in this transaction, just three transaction keys are predefined and posting keys are assigned to them (those are changable). But where to see what those transaction keys mean? And what could be your proposals, how to configure this IMG step?
Thanks!

Hi,
t.code OBXJ is for automatccly postings, normal you never change the standard posting keys.
In the block line items you can select colums you need and place the one's you need to the begin of the screen and in the right top corner of posting line items you can click an save this as (default) variant.
When you want to use an other posting keys you use the option complex posting (F6)
Paul

Help with On key press and Frame

Hi everybody,
I have been trying to make this work but not able to. It would be of great help if u can tell where i am going wrong. Here is my code ( it is prety small) :
I am trying to draw a random line when i do a keypress on the text field.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
public class KeyPress extends Frame{
Label label;
TextField txtField;
public static void main(String[] args) {
KeyPress k = new KeyPress();
public KeyPress(){
super("Key Press Event Frame");
Panel panel = new Panel();
label = new Label();
txtField = new TextField(20);
txtField.addKeyListener(new MyKeyListener());
add(label, BorderLayout.NORTH);
panel.add(txtField, BorderLayout.CENTER);
add(panel, BorderLayout.CENTER);
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent we){
System.exit(0);
setSize(400,400);
setVisible(true);
public class MyKeyListener extends KeyAdapter{
public void keyPressed(KeyEvent ke){
char i = ke.getKeyChar();
String str = Character.toString(i);
label.setText(str);
Line2D myLine = new Line2D.Double(5,5,100,100);
}

Here's what I come up when I played with your code.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.util.Random;
public class KeyPress extends Frame {
    TextField txtField;
    Panel panel;
    public static void main(String[] args) {
        KeyPress k = new KeyPress();
    public KeyPress(){
        super("Key Press Event Frame");
        panel = new myCanvass();
        txtField = new TextField(20);
        txtField.addKeyListener(new MyKeyListener());
        panel.setBackground(Color.LIGHT_GRAY);
        add(txtField, BorderLayout.PAGE_END);
        add(panel, BorderLayout.CENTER);
        addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent we){
                System.exit(0);
        setSize(400,400);
        setVisible(true);
    class myCanvass extends Panel {
        private Graphics2D g2;
        public void paint(Graphics g) {
            drawLine(g);
        private void drawLine(Graphics g) {
            g2 = (Graphics2D) g;
            g2.setColor(Color.RED);
            g2.draw(new Line2D.Double(Math.random() * 150, Math.random() * 150, Math.random() * 200, Math.random() * 200));
    class MyKeyListener extends KeyAdapter{
        public void keyPressed(KeyEvent ke){
            char i = ke.getKeyChar();
            String str = Character.toString(i);
            panel.repaint();
}

Search help with multiple key fields

Hi,
I want to dispaly search help on a field from a internal table have multiple key fields i.e combination of fld1 + fld2 +fld3 makes one single row. Therfore can any one tell me how to return that single row , because if I am using function F4IF_INT_TABLE_VALUE_REQUEST I get only one return field that I select by which I can't get the actual line that I have selected as there may be more that one line for that field.
please suggest any way through programming not by creating any search help through se11.
thanks

Hi,
Use select query to select the fields & display them.
In the following code i've selected only a single field in select query but u can do it for more than 1 & proceed similarly.i've tried it before using this code.
SELECT WERKS
         NAME1
         FROM T001W
         INTO TABLE ITEMP
         WHERE IWERK = 'M011'.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
       EXPORTING
              DDIC_STRUCTURE   = ' '
            RETFIELD         = 'WERKS'
              PVALKEY          = ' '
              DYNPPROG         = ' '
              DYNPNR           = ' '
              DYNPROFIELD      = ' '
              STEPL            = 0
              WINDOW_TITLE     =
              VALUE            = ' '
           VALUE_ORG        = 'S'
              MULTIPLE_CHOICE = ' '
              DISPLAY          = ' '
              CALLBACK_PROGRAM = ' '
              CALLBACK_FORM    = ' '
       TABLES
            VALUE_TAB        = ITEMP
              FIELD_TAB        =
           RETURN_TAB       = T_RETURN
              DYNPFLD_MAPPING =
         EXCEPTIONS
              PARAMETER_ERROR = 1
              NO_VALUES_FOUND = 2
              OTHERS           = 3
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
S_WERK-LOW = T_RETURN-FIELDVAL.
Hope this helps.
Reward if helpful.
Regards,
Sipra

Need help with generating keys from xml

Hello,
I am just learning about JCE and am haveing some problems with implementing a basic program.
I have the following information:
<RSAKeyValue>
<Modulus>Base64EncodedString</Modulus>
<Exponent>Base64EncodedString</Exponent>
<P>Base64EncodedString</P>
<Q>Base64EncodedString</Q>
<DP>Base64EncodedString</DP>
<DQ>Base64EncodedString</DQ>
<InverseQ>Base64EncodedString</InverseQ>
<D>Base64EncodedString</D>
</RSAKeyValue>
From which I need to construct a public and private key. I am using RSA algorithm for the encrypting and decrypting. I am using the org.bouncycastle.jce.provider.BouncyCastleProvider provider. Any help would be greatly appreciated.
My questions are:
1) Is it possible to create the public and private key from this data?
2) How can I construct a public and private key from this data.
Thank you in advance.
Sunit.

Thanks for your help...I am still having problems.
I am now creating the public and private keys. I am generating the public exp, modulus, private exp, and the encrypted text from another source.
so my questions are:
1) How do I verfiy that the private and public keys that I generate are valid?
2) How do I get the decrypted text back in a readable form?
3) the decrypted text should read "ADAM"
Here is a test I wrote:
_________________STARTCODE_____________________
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.math.BigInteger;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
public class CryptTester
     protected Cipher encryptCipher = null;
     protected Cipher decryptCipher = null;
     private KeyFactory keyFactory = null;
     protected PublicKey publicKey = null;
     protected PrivateKey privateKey = null;
     private RSAPublicKeySpec publicKeySpec = null;
     private RSAPrivateKeySpec privateKeySpec = null;
     public CryptTester()
          /* Create Cipher for asymmetric encryption (
          * e.g., RSA),
          try
               encryptCipher = Cipher.getInstance("RSA", "BC");
               System.out.println("Successfully got encrypt Cipher" );
               decryptCipher = Cipher.getInstance("RSA", "BC");
               System.out.println("Successfully got decrypt Cipher" );
               keyFactory = KeyFactory.getInstance("RSA" , "BC");
               System.out.println("Successfully got keyFactory" );
          }catch ( NoSuchAlgorithmException nsae)
               System.out.println("Exception1: " + nsae.toString() );
          catch ( NoSuchPaddingException nspe)
               System.out.println("Exception2: " + nspe.toString() );
          catch ( java.security.NoSuchProviderException nspe)
               System.out.println("Exceptiont6: " + nspe.toString() );
          /* Get the private and public keys specs
          BigInteger publicMod = new BigInteger ("86e0ff4b9e95bc6dcbfd6673b33971d4f728218496adcad92021923a9be815ddb7ecf17c06f437634c62fa999a293da90d964172a21d8ce74bd33938994fbd93377f7d83ce93d523782639c75221a3c91b53927a081b2b089a61770c6d112d78d5da8a6abc452d39a276787892080d6cf17dd09537c1ec5551d89567345068ef", 16);
          BigInteger publicExp = new BigInteger ("5");
          BigInteger privateExp = new BigInteger ("50ed65fa2bf3710ead980a456b88dde62de4e0e9", 16);
          publicKeySpec = new java.security.spec.RSAPublicKeySpec( publicMod, publicExp );
          privateKeySpec = new java.security.spec.RSAPrivateKeySpec( publicMod, privateExp);
          try
               privateKey = keyFactory.generatePrivate(privateKeySpec);
               publicKey = keyFactory.generatePublic(publicKeySpec);
          }catch ( InvalidKeySpecException ivse)
               System.out.println("Exception3: " + ivse.toString() );
          try
          * initialize it for encryption with
          * recipient's public key
               encryptCipher.init(Cipher.ENCRYPT_MODE, publicKey );
               decryptCipher.init(Cipher.DECRYPT_MODE, privateKey );
     }catch ( InvalidKeyException ivse)
               System.out.println("Exception4: " + ivse.toString() );
     public String getPublicKey()
          //return new String(publicKey.getEncoded());
          return publicKey.toString();
     public String getPrivateKey()
     //          return new String(privateKey.getEncoded());
          return privateKey.toString();
     public String encryptIt(String toencrypt)
          * Encrypt the message
          try
               byte [] result = null;
               try
                    result = encryptCipher.doFinal(toencrypt.getBytes());
               catch ( IllegalStateException ise )
                    System.out.println("Exception5: " + ise.toString() );
               return new String(result);
          }catch (Exception e)
               e.printStackTrace();
          return "did not work";
     public String decryptIt(String todecrypt)
                    * decrypt the message
          try
               byte [] result = null;
               try
                    result = decryptCipher.doFinal(todecrypt.getBytes());
               catch ( IllegalStateException ise )
                    System.out.println("Exception6: " + ise.toString() );
               return new String(result);
          }catch (Exception e )
               e.printStackTrace() ;
          return "did not work";
     public static void main(String[] args)
          try
          Security.addProvider(new BouncyCastleProvider());
          CryptTester tester = new CryptTester();
          String encrypted = "307203c3f5827266f5e11af2958271c4";
          System.out.println("Decoding string " + encrypted + "returns : " + tester.decryptIt(encoded) );
          } catch (Exception e)
               e.printStackTrace();
_________________ENDPROGRAM_____________________

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