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Hello again Werner,

So I fixed my encryption problem.  I totally read the documentation
wrong.  I just needed to supply the encryptionUser in the wsdd, which
makes perfect sense in hindsight :)  Thanks for getting me thinking :)

New Related Problem:

This works great for request flows from the client to the web service
since there is only one service the client is talking to (multiple
clients talk to this service) and the client can just insert the service
as the encryptionUser.  And it works for responses from the service to
the client when I hardcode the client as the encryptionUser in the
server.wsdd like follows:

<responseFlow>
  <handler type="java:org.apache.ws.axis.security.WSDoAllSender" >
    <parameter name="user" value="groupsserver"/>
    <parameter name="passwordCallbackClass"
      value="edu.iu.uis.osg.security.PWCallback"/>
    <parameter name="encryptionUser" value="xxappclient"/>
    <parameter name="action" value="Signature Encrypt"/>
    <parameter name="signaturePropFile"
      value="server-crypto.properties" />
    <parameter name="signatureKeyIdentifier" value="DirectReference" />
    <parameter name="encryptionKeyIdentifier"
      value="X509KeyIdentifier" />
  </handler>
</responseFlow>

But there are many clients, so is there some way for my server to
determine who is calling it and encrypt the response back to it with the
 correct public key?

Thanks yet again!
Nate



Nathaniel A. Johnson wrote:
> Hi Werner,
> 
> Your description of signatures and encryption with key pairs makes
> perfect sense.  It did get me thinking of something I figured was just
> happening behind the scenes somewhere, which is that the client "just
> knew" to use the server's public key to do the encrypting.  Is there
> some config setting, property file or what not, that should be set so
> that the client know's to use the server's public key to encrypt with?
> In the client.wsdd there are signaturePropFile and possibly
> encryptionPropFile and decryptionPropFile properties, but those files
> all have passwords in them, so I can't allow the client to see the
> server files, right?
> 
> I must just be missing where I tell the client what to use for
> encryption... any help would be great!
> 
> Thanks!
> Nate
> 
> PS: Signatures are working great for me, both in the request and
> response flows of the service, so I at least have half of it working :)
> 
> 
> Dittmann Werner wrote:
> 
>>>Nate,
>>>
>>>both the Client and the Server use the Merlin calls to access
>>>the keystore and to deal with certificates.
>>>
>>>If you do Signature the the client needs _its_ private
>>>key to sign, the server needs the client's public key
>>>to verify.
>>>
>>>If you encrypt then the client uses the _server's
>>>public_ key to encrypt the symmetric session key, the
>>>server uses _its_ private key to decrypt the session
>>>key. Thus, the case you are describing is probably
>>>a problem in the deployment - if you use Encryption
>>>the you must use the server's certificate to do so
>>>(the certificate contains the public key). To me it
>>>seems that you specified the client's certificate to do
>>>encryption.
>>>
>>>Regards,
>>>Werner
>>>
>>>
>>>
>>>>-----Urspr�ngliche Nachricht-----
>>>>Von: Nathaniel A. Johnson [mailto:[EMAIL PROTECTED] 
>>>>Gesendet: Mittwoch, 1. Juni 2005 16:54
>>>>An: [email protected]
>>>>Betreff: encryption not asking for the right private key
>>>>
>>>>
>>>>hi all,
>>>>
>>>>i just posted this over on the axis list, but realized its probably
>>>>better suited for the wss4j dev list... sorry for the cross post for
>>>>those of you that are on both lists...
>>>>
>>>>i have been stepping through the axis and wss4j code and am at a loss.
>>>>here is the code it is getting to (inside Merlin.java):
>>>>
>>>>public PrivateKey getPrivateKey(String alias, String password)
>>>>   throws Exception {
>>>> if (alias == null) {
>>>>   throw new Exception("alias is null");
>>>> }
>>>> boolean b = keystore.isKeyEntry(alias);
>>>> if (!b) {
>>>>   log.error("Cannot find key for alias: " + alias);
>>>>   throw new Exception("Cannot find key for alias: " + alias);
>>>> }
>>>> Key keyTmp = keystore.getKey(alias, password.toCharArray());
>>>> if (!(keyTmp instanceof PrivateKey)) {
>>>>   throw new Exception("Key is not a private key, alias: " + alias);
>>>> }
>>>> return (PrivateKey) keyTmp;
>>>>}
>>>>
>>>>this is when the client calls to the service.  the client is 
>>>>sending an
>>>>encrypted/signed message.  what's happening is the server 
>>>>(web service)
>>>>is trying to get the private key for the client.  that just 
>>>>doesnt make
>>>>sense.  the server will not have a keyEntry (private key) for the
>>>>client, just public keys.
>>>>
>>>>does anyone have any idea where i might be going wrong?  i have been
>>>>looking at this problem for over a week now, so maybe i am 
>>>>just missing
>>>>something?  i feel like i am going crazy.
>>>>
>>>>thanks
>>>>nate
> 
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