Initial import.

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@1 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4

7 files changed, 635 insertions, 0 deletions

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractRequestHandler.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractRequestHandler.java
new file mode 100644
index 00000000..e5afa478
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractRequestHandler.java
@@ -0,0 +1,86 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+import java.awt.event.ActionEvent;

+import java.awt.event.ActionListener;

+

+import org.apache.commons.logging.Log;

+import org.apache.commons.logging.LogFactory;

+

+import at.gv.egiz.bku.gui.BKUGUIFacade;

+import at.gv.egiz.smcc.PINProvider;

+import at.gv.egiz.smcc.SignatureCard;

+import at.gv.egiz.stal.STALRequest;

+import at.gv.egiz.stal.STALResponse;

+

+public abstract class AbstractRequestHandler implements SMCCSTALRequestHandler,

+    ActionListener {

+  private final static Log log = LogFactory

+      .getLog(AbstractRequestHandler.class);

+

+  protected SignatureCard card;

+  protected BKUGUIFacade gui;

+  protected static STALMessageConsumer messageConsumer = null;

+  protected String actionCommand;

+  protected boolean actionPerformed = false;

+

+  @Override

+  public abstract STALResponse handleRequest(STALRequest request);

+

+  @Override

+  public void init(SignatureCard sc, BKUGUIFacade gui) {

+    if ((sc == null) || (gui == null)) {

+      throw new NullPointerException("Parameter must not be set to null");

+    }

+    this.card = sc;

+    this.gui = gui;

+  }

+  

+  public static void setMessageConsumer(STALMessageConsumer messageConsumer) {

+    AbstractRequestHandler.messageConsumer = messageConsumer;

+  }

+

+  protected static void newSTALMessage(String caption, String message) {

+    if (messageConsumer != null) {

+      messageConsumer.consumeNewSTALMessage(caption, message);

+    }

+  }

+

+  protected synchronized void waitForAction() {

+    try {

+      while (!actionPerformed) {

+        wait();

+      }

+    } catch (InterruptedException e) {

+      log.info(e);

+    }

+    actionPerformed = false;

+  }

+

+  private synchronized void actionPerformed() {

+    actionPerformed = true;

+    notifyAll();

+  }

+  

+  @Override

+  public void actionPerformed(ActionEvent e) {

+    actionCommand = e.getActionCommand();

+    actionPerformed();

+  }

+

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractSMCCSTAL.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractSMCCSTAL.java
new file mode 100644
index 00000000..7bd9e264
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractSMCCSTAL.java
@@ -0,0 +1,116 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+import java.util.ArrayList;

+import java.util.HashMap;

+import java.util.List;

+import java.util.Locale;

+import java.util.Map;

+

+import org.apache.commons.logging.Log;

+import org.apache.commons.logging.LogFactory;

+

+import at.gv.egiz.bku.gui.BKUGUIFacade;

+import at.gv.egiz.smcc.PINProvider;

+import at.gv.egiz.smcc.SignatureCard;

+import at.gv.egiz.smcc.util.SMCCHelper;

+import at.gv.egiz.stal.ErrorResponse;

+import at.gv.egiz.stal.InfoboxReadRequest;

+import at.gv.egiz.stal.STAL;

+import at.gv.egiz.stal.STALRequest;

+import at.gv.egiz.stal.STALResponse;

+import at.gv.egiz.stal.SignRequest;

+

+public abstract class AbstractSMCCSTAL implements STAL {

+  private static Log log = LogFactory.getLog(AbstractSMCCSTAL.class);

+

+  protected Locale locale = Locale.getDefault();

+  protected SMCCHelper smccHelper = new SMCCHelper();

+  protected SignatureCard signatureCard = null;

+  protected static Map<String, SMCCSTALRequestHandler> handlerMap = new HashMap<String, SMCCSTALRequestHandler>();

+

+  static {

+    addRequestHandler(InfoboxReadRequest.class, new InfoBoxReadRequestHandler());

+    addRequestHandler(SignRequest.class, new SignRequestHandler());

+  }

+

+  public AbstractSMCCSTAL() {

+  }

+

+  /**

+   * Implementations must assign the signature card within this method.

+   * 

+   * @return if the user canceled

+   */

+  protected abstract boolean waitForCard();

+

+  protected abstract BKUGUIFacade getGUI();

+

+  @Override

+  public List<STALResponse> handleRequest(

+      List<STALRequest> requestList) {

+    log.debug("Got request list containing " + requestList.size()

+        + " STAL requests");

+    List<STALResponse> responseList = new ArrayList<STALResponse>(requestList

+        .size());

+    for (STALRequest request : requestList) {

+      log.info("Processing: " + request);

+      SMCCSTALRequestHandler handler = null;

+      handler = handlerMap.get(request.getClass().getSimpleName());

+      if (handler != null) {

+        if (handler.requireCard()) {

+          if (waitForCard()) {

+            responseList.add(new ErrorResponse(6001));

+            break;

+          }

+        }

+        try {

+          handler = handler.newInstance();

+          handler.init(signatureCard, getGUI());

+          responseList.add(handler.handleRequest(request));

+        } catch (Exception e) {

+          log.info("Error while handling STAL request:" + e);

+          responseList.add(new ErrorResponse(6000));

+        }

+      } else {

+        log.error("Cannot find a handler for STAL request: " + request);

+        responseList.add(new ErrorResponse());

+      }

+    }

+    return responseList;

+  }

+

+  public static void addRequestHandler(Class<? extends STALRequest> id,

+      SMCCSTALRequestHandler handler) {

+    log.debug("Registering STAL request handler: " + id.getSimpleName());

+    handlerMap.put(id.getSimpleName(), handler);

+  }

+

+  public static SMCCSTALRequestHandler getRequestHandler(

+      Class<? extends STALRequest> request) {

+    return handlerMap.get(request.getSimpleName());

+  }

+

+  @Override

+  public void setLocale(Locale locale) {

+    if (locale == null) {

+      throw new NullPointerException("Locale must not be set to null");

+    }

+    this.locale = locale;

+  }

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java
new file mode 100644
index 00000000..3a564b91
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java
@@ -0,0 +1,85 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+import iaik.me.asn1.ASN1;

+import iaik.me.utils.Base64;

+

+import java.io.IOException;

+import java.security.MessageDigest;

+import java.security.NoSuchAlgorithmException;

+import java.util.Vector;

+

+public class DomainIdConverter {

+

+  private static String getBaseId(ASN1 identityLink) throws IOException {

+

+    if (identityLink.getType() == ASN1.TYPE_SEQUENCE) {

+      ASN1 personData = identityLink.getElementAt(4);

+      if (personData.getType() == ASN1.TAG_CONTEXT_SPECIFIC) {

+        ASN1 physicalPersonData = personData.gvASN1();

+        ASN1 baseId = physicalPersonData.getElementAt(0);

+        return baseId.gvString();

+      }

+      throw new IOException("Invalid structure.");

+

+    }

+    throw new IOException("Invalid structure.");

+

+  }

+

+  private static ASN1 replaceBaseId(ASN1 identityLink, String newBaseId)

+      throws IOException {

+

+    ASN1 newIdentityLink = new ASN1(ASN1.TYPE_SEQUENCE, new Vector<ASN1>());

+    for (int i = 0; i < identityLink.getSize(); i++) {

+      ASN1 asn1 = identityLink.getElementAt(i);

+      if (i == 4 && asn1.getType() == ASN1.TAG_CONTEXT_SPECIFIC) {

+        ASN1 physicalPersonData = asn1.gvASN1();

+        ASN1 newPhysicalPersonData = new ASN1(ASN1.TYPE_SEQUENCE,

+            new Vector<ASN1>());

+        newPhysicalPersonData.addElement(new ASN1(ASN1.TYPE_UTF8_STRING,

+            newBaseId));

+        for (int j = 1; j < physicalPersonData.getSize(); j++) {

+          newPhysicalPersonData.addElement(physicalPersonData.getElementAt(j));

+        }

+        asn1 = new ASN1(ASN1.TAG_CONTEXT_SPECIFIC, newPhysicalPersonData);

+      }

+      newIdentityLink.addElement(asn1);

+    }

+    return newIdentityLink;

+

+  }

+

+  public static byte[] convertDomainId(byte[] data, String domainId)

+      throws IOException, NoSuchAlgorithmException {

+    if (domainId == null) {

+      return data;

+    }

+    ASN1 identityLink = new ASN1(data);

+    MessageDigest sha = null;

+    sha = MessageDigest.getInstance("SHA");

+    String base = getBaseId(identityLink);

+    sha.update((base + "+" + domainId).getBytes());

+    String bpkStr = new String(Base64.encode(sha.digest()));

+    bpkStr = bpkStr.trim();

+    identityLink = replaceBaseId(identityLink, bpkStr);

+    System.out.println(getBaseId(identityLink));

+    return identityLink.getEncoded();

+  }

+

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/InfoBoxReadRequestHandler.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/InfoBoxReadRequestHandler.java
new file mode 100644
index 00000000..7dc2e202
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/InfoBoxReadRequestHandler.java
@@ -0,0 +1,140 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+import org.apache.commons.logging.Log;

+import org.apache.commons.logging.LogFactory;

+

+import at.gv.egiz.smcc.CancelledException;

+import at.gv.egiz.smcc.PINProvider;

+import at.gv.egiz.smcc.PINSpec;

+import at.gv.egiz.smcc.SignatureCard;

+import at.gv.egiz.smcc.SignatureCardException;

+import at.gv.egiz.stal.ErrorResponse;

+import at.gv.egiz.stal.InfoboxReadRequest;

+import at.gv.egiz.stal.InfoboxReadResponse;

+import at.gv.egiz.stal.STALRequest;

+import at.gv.egiz.stal.STALResponse;

+

+public class InfoBoxReadRequestHandler extends AbstractRequestHandler implements

+    PINProvider {

+

+  private static Log log = LogFactory.getLog(InfoBoxReadRequestHandler.class);

+

+  private int retryCounter = 0;

+

+  @Override

+  public STALResponse handleRequest(STALRequest request) {

+    if (request instanceof InfoboxReadRequest) {

+      InfoboxReadRequest infoBox = (InfoboxReadRequest) request;

+      try {

+        if (infoBox.getInfoboxIdentifier().equals("IdentityLink")) {

+          newSTALMessage("Message.RequestCaption", "Message.IdentityLink");

+          log.debug("Handling identitylink infobox");

+          byte[] resp = card.getInfobox(infoBox.getInfoboxIdentifier(), this,

+              infoBox.getDomainIdentifier());

+          if (resp == null) {

+            log.info("Got null as result->user cancelled");

+            return new ErrorResponse(6001);

+          } else {

+            try {

+              resp = DomainIdConverter.convertDomainId(resp, infoBox

+                  .getDomainIdentifier());

+            } catch (Exception e) {

+              log.error("Cannot convert domain specific id", e);

+              return new ErrorResponse(1000);

+            }

+          }

+          InfoboxReadResponse stalResp = new InfoboxReadResponse();

+          stalResp.setInfoboxValue(resp);

+          return stalResp;

+        } else if (SignatureCard.KeyboxName.CERITIFIED_KEYPAIR.equals(infoBox

+            .getInfoboxIdentifier())) {

+          newSTALMessage("Message.RequestCaption", "Message.CertifiedKeypair");

+          log.debug("Handling certified keypair infobox");

+          byte[] resp = card

+              .getCertificate(SignatureCard.KeyboxName.CERITIFIED_KEYPAIR);

+          if (resp == null) {

+            return new ErrorResponse(6001);

+          }

+          InfoboxReadResponse stalResp = new InfoboxReadResponse();

+          stalResp.setInfoboxValue(resp);

+          return stalResp;

+        } else if (SignatureCard.KeyboxName.SECURE_SIGNATURE_KEYPAIR

+            .equals(infoBox.getInfoboxIdentifier())) {

+          newSTALMessage("Message.RequestCaption",

+              "Message.SecureSignatureKeypair");

+          log.debug("Handling secure signature keypair infobox");

+          byte[] resp = card

+              .getCertificate(SignatureCard.KeyboxName.SECURE_SIGNATURE_KEYPAIR);

+          if (resp == null) {

+            return new ErrorResponse(6001);

+          }

+          InfoboxReadResponse stalResp = new InfoboxReadResponse();

+          stalResp.setInfoboxValue(resp);

+          return stalResp;

+        } else {

+          newSTALMessage("Message.RequestCaption", "Message.InfoboxReadRequest");

+          log.warn("Unknown infobox identifier: "

+              + infoBox.getInfoboxIdentifier() + " trying generic request");

+          byte[] resp = card.getInfobox(infoBox.getInfoboxIdentifier(), this,

+              infoBox.getDomainIdentifier());

+          if (resp == null) {

+            return new ErrorResponse(6001);

+          }

+          InfoboxReadResponse stalResp = new InfoboxReadResponse();

+          stalResp.setInfoboxValue(resp);

+          return stalResp;

+        }

+      } catch (CancelledException cx) {

+        log.debug("User cancelled request", cx);

+        return new ErrorResponse(6001);

+      } catch (SignatureCardException e) {

+        log.info("Error while reading infobox: " + e);

+        return new ErrorResponse(4000);

+      }

+    } else {

+      log.fatal("Got unexpected STAL request: " + request);

+      return new ErrorResponse(1000);

+    }

+  }

+

+  @Override

+  public boolean requireCard() {

+    return true;

+  }

+

+  @Override

+  public String providePIN(PINSpec spec, int retries) {

+    if (retryCounter++ > 0) {

+      log.info("PIN wrong retrying ...");

+      gui.showCardPINRetryDialog(spec, retries, this, "ok", this, "cancel");

+    } else {

+      gui.showCardPINDialog(spec, this, "ok", this, "cancel");

+    }

+    waitForAction();

+    if (actionCommand.equals("cancel")) {

+      return null;

+    }

+    return new String(gui.getPin());

+  }

+

+  @Override

+  public SMCCSTALRequestHandler newInstance() {

+    return new InfoBoxReadRequestHandler();

+  }

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SMCCSTALRequestHandler.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SMCCSTALRequestHandler.java
new file mode 100644
index 00000000..7badb2a0
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SMCCSTALRequestHandler.java
@@ -0,0 +1,36 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+

+import at.gv.egiz.bku.gui.BKUGUIFacade;

+import at.gv.egiz.smcc.PINProvider;

+import at.gv.egiz.smcc.SignatureCard;

+import at.gv.egiz.stal.STALRequest;

+import at.gv.egiz.stal.STALResponse;

+

+public interface SMCCSTALRequestHandler {

+  

+  public void init(SignatureCard sc, BKUGUIFacade gui);

+  

+  public STALResponse handleRequest(STALRequest request);

+  

+  public boolean requireCard();

+  

+  public SMCCSTALRequestHandler newInstance();

+

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/STALMessageConsumer.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/STALMessageConsumer.java
new file mode 100644
index 00000000..7d7a6ec0
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/STALMessageConsumer.java
@@ -0,0 +1,21 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+public interface STALMessageConsumer {

+  public void consumeNewSTALMessage(String captionId, String messageId);

+}

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SignRequestHandler.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SignRequestHandler.java
new file mode 100644
index 00000000..6ae4fa01
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/SignRequestHandler.java
@@ -0,0 +1,151 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;

+

+import java.io.ByteArrayInputStream;

+import java.io.InputStream;

+import java.security.MessageDigest;

+import java.security.NoSuchAlgorithmException;

+

+import javax.xml.bind.JAXBContext;

+import javax.xml.bind.JAXBElement;

+import javax.xml.bind.JAXBException;

+import javax.xml.bind.Unmarshaller;

+

+import org.apache.commons.logging.Log;

+import org.apache.commons.logging.LogFactory;

+

+import at.gv.egiz.smcc.CancelledException;

+import at.gv.egiz.smcc.PINProvider;

+import at.gv.egiz.smcc.PINSpec;

+import at.gv.egiz.smcc.SignatureCard;

+import at.gv.egiz.smcc.SignatureCardException;

+import at.gv.egiz.smcc.SignatureCard.KeyboxName;

+import at.gv.egiz.stal.ErrorResponse;

+import at.gv.egiz.stal.STALRequest;

+import at.gv.egiz.stal.STALResponse;

+import at.gv.egiz.stal.SignRequest;

+import at.gv.egiz.stal.SignResponse;

+import at.gv.egiz.stal.signedinfo.ObjectFactory;

+import at.gv.egiz.stal.signedinfo.SignedInfoType;

+import at.gv.egiz.stal.util.JCEAlgorithmNames;

+

+public class SignRequestHandler extends AbstractRequestHandler implements

+    PINProvider {

+  private static Log log = LogFactory.getLog(SignRequestHandler.class);

+

+  private static JAXBContext jaxbContext;

+

+  static {

+    try {

+      jaxbContext = JAXBContext.newInstance(ObjectFactory.class.getPackage()

+          .getName());

+    } catch (JAXBException e) {

+      log.fatal("Cannot init jaxbContext", e);

+    }

+  }

+

+  private int retryCounter = 0;

+

+  public SignRequestHandler() {

+  }

+

+  @SuppressWarnings("unchecked")

+  @Override

+  public STALResponse handleRequest(STALRequest request) {

+    if (request instanceof SignRequest) {

+      SignRequest signReq = (SignRequest) request;

+      newSTALMessage("Message.RequestCaption", "Message.SignRequest");

+      try {

+        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();

+        InputStream is = new ByteArrayInputStream(signReq.getSignedInfo());

+        JAXBElement<SignedInfoType> signedInfo = (JAXBElement<SignedInfoType>) unmarshaller

+            .unmarshal(is);

+        String signatureMethod = signedInfo.getValue().getSignatureMethod()

+            .getAlgorithm();

+        log.debug("Found signature method: " + signatureMethod);

+        String jceName = JCEAlgorithmNames.getJCEHashName(signatureMethod);

+        if (jceName == null) {

+          log.error("Hash algorithm not supported:");

+          return new ErrorResponse(1000);

+        }

+        MessageDigest md = MessageDigest.getInstance(jceName);

+        md.update(signReq.getSignedInfo());

+        KeyboxName kb = SignatureCard.KeyboxName.getKeyboxName(signReq

+            .getKeyIdentifier());

+        byte[] resp = card.createSignature(md.digest(), kb, this);

+        if (resp == null) {

+          return new ErrorResponse(6001);

+        }

+        SignResponse stalResp = new SignResponse();

+        stalResp.setSignatureValue(resp);

+        return stalResp;

+      } catch (CancelledException cx) {

+        log.debug("User cancelled request");

+        return new ErrorResponse(6001);

+      } catch (SignatureCardException e) {

+        log.error("Error while creating signature: " + e);

+        return new ErrorResponse(4000);

+      } catch (JAXBException e) {

+        log.error("Cannot unmarshall signed info", e);

+        return new ErrorResponse(1000);

+      } catch (NoSuchAlgorithmException e) {

+        log.error(e);

+        return new ErrorResponse(1000);

+      }

+    } else {

+      log.fatal("Got unexpected STAL request: " + request);

+      return new ErrorResponse(1000);

+    }

+  }

+

+  @Override

+  public boolean requireCard() {

+    return true;

+  }

+

+  @Override

+  public String providePIN(PINSpec spec, int retries) {

+    if (retryCounter++ > 0) {

+      log.info("PIN wrong retrying ...");

+      gui.showSignaturePINRetryDialog(spec, retries, this, "sign", this,

+          "cancel", this, "hashData");

+    } else {

+      gui.showSignaturePINDialog(spec, this, "sign", this, "cancel", this,

+          "hashData");

+    }

+    do {

+      waitForAction();

+      if (actionCommand.equals("cancel")) {

+        return null;

+      } else if (actionCommand.equals("hashData")) {

+        // FIXME provide hashdata input

+        gui.showHashDataInputDialog(null, this, "ok");

+      } else if (actionCommand.equals("sign")) {

+        return new String(gui.getPin());

+      } else if (actionCommand.equals("ok")) {

+        gui.showSignaturePINDialog(spec, this, "sign", this, "cancel", this,

+        "hashData"); 

+      }

+    } while (true);

+  }

+

+  @Override

+  public SMCCSTALRequestHandler newInstance() {

+    return new SignRequestHandler();

+  }

+}