Add PDF-AS4 signer

8 files changed, 784 insertions, 0 deletions

diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4BKUSLConnector.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4BKUSLConnector.java
new file mode 100644
index 00000000..33221285
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4BKUSLConnector.java
@@ -0,0 +1,144 @@
+/*

+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria

+ *

+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by

+ * the European Commission - subsequent versions of the EUPL (the "Licence");

+ * You may not use this work except in compliance with the Licence.

+ * You may obtain a copy of the Licence at:

+ * http://joinup.ec.europa.eu/software/page/eupl

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the Licence is distributed on an "AS IS" basis,

+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the Licence for the specific language governing permissions and

+ * limitations under the Licence.

+ */

+package at.asit.pdfover.signer.pdfas;

+

+// Imports

+import javax.xml.bind.JAXBElement;

+import javax.xml.bind.JAXBException;

+

+import org.slf4j.Logger;

+import org.slf4j.LoggerFactory;

+

+import at.asit.pdfover.signator.BkuSlConnector;

+import at.asit.pdfover.signator.SignatureException;

+import at.asit.pdfover.signer.pdfas.exceptions.PdfAs4SLRequestException;

+import at.gv.egiz.pdfas.common.exceptions.PDFIOException;

+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;

+import at.gv.egiz.pdfas.common.exceptions.SLPdfAsException;

+import at.gv.egiz.pdfas.lib.api.sign.SignParameter;

+import at.gv.egiz.sl.schema.CreateCMSSignatureResponseType;

+import at.gv.egiz.sl.schema.ErrorResponseType;

+import at.gv.egiz.sl.schema.InfoboxReadRequestType;

+import at.gv.egiz.sl.schema.InfoboxReadResponseType;

+import at.gv.egiz.sl.util.BaseSLConnector;

+import at.gv.egiz.sl.util.RequestPackage;

+import at.gv.egiz.sl.util.SLMarschaller;

+

+/**

+ * 

+ */

+public class PdfAs4BKUSLConnector extends BaseSLConnector {

+	/**

+	 * SLF4J Logger instance

+	 **/

+	private static final Logger log = LoggerFactory

+			.getLogger(PdfAs4BKUSLConnector.class);

+

+	private BkuSlConnector connector;

+

+	/**

+	 * Constructor

+	 * @param connector the BKU SL Connector

+	 */

+	public PdfAs4BKUSLConnector(BkuSlConnector connector) {

+		this.connector = connector;

+	}

+

+

+	/* (non-Javadoc)

+	 * @see at.gv.egiz.sl.util.ISLConnector#sendInfoboxReadRequest(at.gv.egiz.sl.schema.InfoboxReadRequestType, at.gv.egiz.pdfas.lib.api.sign.SignParameter)

+	 */

+	@Override

+	public InfoboxReadResponseType sendInfoboxReadRequest(

+			InfoboxReadRequestType request, SignParameter parameter)

+			throws PdfAsException {

+		JAXBElement<?> element = null;

+		try {

+			String slRequestString = SLMarschaller.marshalToString(this.of.createInfoboxReadRequest(request));

+			log.trace(slRequestString);

+

+			PdfAs4SLRequest slRequest = new PdfAs4SLRequest(slRequestString, null);

+			String slResponse = this.connector.handleSLRequest(slRequest).getSLRespone();

+

+			element = (JAXBElement<?>) SLMarschaller

+					.unmarshalFromString(slResponse);

+		} catch (JAXBException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		} catch (PdfAs4SLRequestException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		} catch (SignatureException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		}

+

+		if (element == null) {

+			throw new PDFIOException("error.pdf.io.04");

+		}

+

+		if (element.getValue() instanceof InfoboxReadResponseType) {

+			InfoboxReadResponseType infoboxReadResponseType = (InfoboxReadResponseType) element

+					.getValue();

+			return infoboxReadResponseType;

+		} else if (element.getValue() instanceof ErrorResponseType) {

+			ErrorResponseType errorResponseType = (ErrorResponseType) element

+					.getValue();

+			throw new SLPdfAsException(errorResponseType.getErrorCode(),

+					errorResponseType.getInfo());

+		}

+		throw new PdfAsException("error.pdf.io.03");

+	}

+

+	/* (non-Javadoc)

+	 * @see at.gv.egiz.sl.util.ISLConnector#sendCMSRequest(at.gv.egiz.sl.util.RequestPackage, at.gv.egiz.pdfas.lib.api.sign.SignParameter)

+	 */

+	@Override

+	public CreateCMSSignatureResponseType sendCMSRequest(RequestPackage pack,

+			SignParameter parameter) throws PdfAsException {

+		JAXBElement<?> element = null;

+		try {

+			String slRequestString = SLMarschaller.marshalToString(this.of.createCreateCMSSignatureRequest(pack.getRequestType()));

+			log.debug(slRequestString);

+

+			PdfAs4SLRequest slRequest = new PdfAs4SLRequest(slRequestString, pack.getSignatureData());

+			String slResponse = this.connector.handleSLRequest(slRequest).getSLRespone();

+

+			element = (JAXBElement<?>) SLMarschaller

+					.unmarshalFromString(slResponse);

+		} catch (JAXBException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		} catch (PdfAs4SLRequestException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		} catch (SignatureException e) {

+			throw new PDFIOException("error.pdf.io.03", e);

+		}

+

+		if (element == null) {

+			throw new PDFIOException("error.pdf.io.05");

+		}

+

+		if (element.getValue() instanceof CreateCMSSignatureResponseType) {

+			CreateCMSSignatureResponseType createCMSSignatureResponseType = (CreateCMSSignatureResponseType) element

+					.getValue();

+			log.debug(createCMSSignatureResponseType.toString());

+			return createCMSSignatureResponseType;

+		} else if (element.getValue() instanceof ErrorResponseType) {

+			ErrorResponseType errorResponseType = (ErrorResponseType) element

+					.getValue();

+			throw new SLPdfAsException(errorResponseType.getErrorCode(),

+					errorResponseType.getInfo());

+		}

+		throw new PdfAsException("error.pdf.io.03");

+	}

+}

diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java
new file mode 100644
index 00000000..21a6bbdb
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Helper.java
@@ -0,0 +1,79 @@
+/*

+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria

+ *

+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by

+ * the European Commission - subsequent versions of the EUPL (the "Licence");

+ * You may not use this work except in compliance with the Licence.

+ * You may obtain a copy of the Licence at:

+ * http://joinup.ec.europa.eu/software/page/eupl

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the Licence is distributed on an "AS IS" basis,

+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the Licence for the specific language governing permissions and

+ * limitations under the Licence.

+ */

+package at.asit.pdfover.signer.pdfas;

+

+// Imports

+import java.io.File;

+

+import org.slf4j.Logger;

+import org.slf4j.LoggerFactory;

+

+import at.asit.pdfover.signator.SignatureException;

+import at.gv.egiz.pdfas.lib.api.PdfAs;

+import at.gv.egiz.pdfas.lib.api.PdfAsFactory;

+

+/**

+ * PDF-AS 4 Helper

+ */

+public class PdfAs4Helper {

+	/**

+	 * SLF4J Logger instance

+	 **/

+	@SuppressWarnings("unused")

+	private static final Logger log = LoggerFactory

+			.getLogger(PdfAs4Helper.class);

+

+	/**

+	 * PDF-AS Object

+	 */

+	private static PdfAs pdfAs = null;

+

+	/**

+	 * Gets PDF-AS Object

+	 * @return the PDF-AS Object

+	 * @throws SignatureException

+	 */

+	public static synchronized PdfAs getPdfAs() throws SignatureException {

+		if (pdfAs == null) {

+			try {

+				pdfAs = createPdfAs();

+			} catch(Exception e) {

+				throw new SignatureException(e);

+			}

+		}

+		return pdfAs;

+	}

+

+	/**

+	 * Creates PDF-AS Object

+	 * @return the PDF-AS Object

+	 * @throws PdfAsException

+	 */

+	private static PdfAs createPdfAs() {

+		File directory = new File (".");

+		System.setProperty("log4j.configuration", directory.getAbsolutePath() +

+				"/log4j.properties");

+		return PdfAsFactory.createPdfAs(new File(getWorkDir()));

+	}

+

+	/**

+	 * Provides the working directory

+	 * @return the working directory

+	 */

+	public static String getWorkDir() {

+		return System.getProperty("user.home") + "/.pdf-over";

+	}

+}

diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SLRequest.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SLRequest.java
new file mode 100644
index 00000000..87babd59
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SLRequest.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas;
+
+// Imports
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.ByteArrayDocumentSource;
+import at.asit.pdfover.signator.SLRequest;
+import at.asit.pdfover.signer.pdfas.exceptions.PdfAs4SLRequestException;
+
+/**
+ * PDF - AS Security Layer Request implementation
+ */
+public class PdfAs4SLRequest extends SLRequest {
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	@SuppressWarnings("unused")
+	private static final Logger log = LoggerFactory.getLogger(PdfAs4SLRequest.class);
+
+	/**
+	 * Default constructor
+	 * @param slRequest
+	 * @param signData 
+	 * @throws PdfAs4SLRequestException 
+	 */
+	public PdfAs4SLRequest(String slRequest, byte[] signData) throws PdfAs4SLRequestException {
+//		if(!slRequest.contains(PdfAs4Signer.LOC_REF)) {
+//			log.error("PDF-AS SL request doesn't contain " + PdfAs4Signer.LOC_REF);
+//			log.debug("Request: " + slRequest);
+//			throw new PdfAs4SLRequestException("PDF-AS SL request doesn't contain " + PdfAs4Signer.LOC_REF);
+//		}
+//
+//		// Modifing SL Request ...
+//		setRequest(slRequest.replace(PdfAs4Signer.LOC_REF, SLRequest.DATAOBJECT_STRING));
+
+		setRequest(slRequest);
+		setSignatureData(signData == null ? null : new ByteArrayDocumentSource(signData));
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignatureParameter.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignatureParameter.java
new file mode 100644
index 00000000..38aabadd
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignatureParameter.java
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas;
+
+//Imports
+import iaik.x509.X509Certificate;
+
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.util.HashMap;
+import java.util.Locale;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.SignatureDimension;
+import at.asit.pdfover.signator.SignatureParameter;
+import at.asit.pdfover.signator.SignaturePosition;
+import at.gv.egiz.pdfas.lib.api.Configuration;
+import at.gv.egiz.pdfas.lib.api.PdfAs;
+import at.gv.egiz.pdfas.lib.api.PdfAsFactory;
+import at.gv.egiz.pdfas.lib.api.sign.SignParameter;
+
+/**
+ * Implementation of SignatureParameter for PDF-AS 4 Library
+ */
+public class PdfAs4SignatureParameter extends SignatureParameter {
+	/** The profile ID for the German signature block */
+	private static final String PROFILE_ID_DE = "SIGNATURBLOCK_SMALL_DE_PDFA";
+	/** The profile ID for the German signature block if a signature note is set */
+	private static final String PROFILE_ID_DE_NOTE = "SIGNATURBLOCK_SMALL_DE_NOTE_PDFA";
+	/** The profile ID for the English signature block */
+	private static final String PROFILE_ID_EN = "SIGNATURBLOCK_SMALL_EN_PDFA";
+	/** The profile ID for the English signature block if a signature note is set */
+	private static final String PROFILE_ID_EN_NOTE = "SIGNATURBLOCK_SMALL_EN_NOTE_PDFA";
+
+	private HashMap<String, String> genericProperties = new HashMap<String, String>();
+
+	private int sig_w = 229;
+	private int sig_h = 77;
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory
+			.getLogger(PdfAs4SignatureParameter.class);
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SignatureParameter#getPlaceholderDimension()
+	 */
+	@Override
+	public SignatureDimension getPlaceholderDimension() {
+		return new SignatureDimension(this.sig_w, this.sig_h);
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SignatureParameter#getPlaceholder()
+	 */
+	@Override
+	public Image getPlaceholder() {
+		String sigProfile = getPdfAsSignatureProfileId();
+		String sigEmblem = (getEmblem() == null ? null : getEmblem().getFileName());
+		String sigNote = getProperty("SIG_NOTE");
+
+		try {
+			X509Certificate cert = new X509Certificate(PdfAs4SignatureParameter.class.getResourceAsStream("/qualified.cer"));
+			PdfAs pdfas = PdfAs4Helper.getPdfAs();
+			Configuration conf = pdfas.getConfiguration();
+			if (sigEmblem != null && !sigEmblem.trim().equals("")) {
+				conf.setValue("sig_obj." + sigProfile + ".value.SIG_LABEL", sigEmblem);
+			}
+			if (sigNote != null) {
+				conf.setValue("sig_obj." + sigProfile + ".value.SIG_NOTE", sigNote);
+			}
+			SignParameter param = PdfAsFactory
+					.createSignParameter(conf, null, null);
+			param.setSignatureProfileId(sigProfile);
+			Image img = pdfas.generateVisibleSignaturePreview(param, cert, 72*4);
+			this.sig_w = img.getWidth(null)/4;
+			this.sig_h = img.getHeight(null)/4;
+
+			return img;
+		} catch (Exception e) {
+			log.error("Failed to get signature placeholder", e);
+			return new BufferedImage(getPlaceholderDimension().getWidth(),
+					getPlaceholderDimension().getHeight(),
+					BufferedImage.TYPE_INT_RGB);
+		}
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SignatureParameter#setProperty(java.lang.String, java.lang.String)
+	 */
+	@Override
+	public void setProperty(String key, String value) {
+		this.genericProperties.put(key, value);
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SignatureParameter#getProperty(java.lang.String)
+	 */
+	@Override
+	public String getProperty(String key) {
+		return this.genericProperties.get(key);
+	}
+
+	/**
+	 * Gets the Signature Position String for PDF-AS
+	 * 
+	 * @return Signature Position String
+	 */
+	public String getPdfAsSignaturePosition() {
+		SignaturePosition in_pos = getSignaturePosition();
+		String out_pos;
+
+		if (!in_pos.useAutoPositioning()) {
+			if (in_pos.getPage() < 1) {
+				out_pos = String.format(
+						(Locale) null,
+						"p:new;x:%f;y:%f",  in_pos.getX(),
+						in_pos.getY());
+			} else {
+				out_pos = String.format(
+						(Locale) null,
+						"p:%d;x:%f;y:%f", in_pos.getPage(), in_pos.getX(),
+						in_pos.getY());
+			}
+		} else {
+			out_pos = "p:auto;x:auto;y:auto";
+		}
+
+		return out_pos;
+	}
+
+	/**
+	 * Get the Signature Profile ID for this set of parameters
+	 * @return the Signature Profile ID
+	 */
+	public String getPdfAsSignatureProfileId() {
+		String lang = getSignatureLanguage();
+		boolean useNote = (getProperty("SIG_NOTE") != null);
+
+		if (lang != null && lang.equals("en"))
+			return useNote ? PROFILE_ID_EN_NOTE : PROFILE_ID_EN;
+
+		return useNote ? PROFILE_ID_DE_NOTE : PROFILE_ID_DE;
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Signer.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Signer.java
new file mode 100644
index 00000000..0f42a517
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4Signer.java
@@ -0,0 +1,146 @@
+package at.asit.pdfover.signer.pdfas;
+
+import java.io.ByteArrayOutputStream;
+import java.util.UUID;
+
+import javax.activation.DataSource;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.signator.ByteArrayDocumentSource;
+import at.asit.pdfover.signator.SignResult;
+import at.asit.pdfover.signator.SignResultImpl;
+import at.asit.pdfover.signator.SignatureException;
+import at.asit.pdfover.signator.SignatureParameter;
+import at.asit.pdfover.signator.SignaturePosition;
+import at.asit.pdfover.signator.Signer;
+import at.asit.pdfover.signator.SigningState;
+import at.gv.egiz.pdfas.common.exceptions.PDFASError;
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.lib.api.ByteArrayDataSource;
+import at.gv.egiz.pdfas.lib.api.Configuration;
+import at.gv.egiz.pdfas.lib.api.PdfAs;
+import at.gv.egiz.pdfas.lib.api.PdfAsFactory;
+import at.gv.egiz.pdfas.lib.api.sign.SignParameter;
+import at.gv.egiz.pdfas.sigs.pades.PAdESSigner;
+import at.gv.egiz.sl.util.ISLConnector;
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+
+/**
+ * PDF AS Signer Implementation
+ */
+public class PdfAs4Signer implements Signer {
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory.getLogger(PdfAs4Signer.class);
+
+	/**
+	 * The template URL
+	 */
+	protected static final String URL_TEMPLATE = "http://pdfover.4.gv.at/template";
+
+	/**
+	 * Location reference string
+	 */
+	protected static final String LOC_REF = "<sl:LocRefContent>" + URL_TEMPLATE
+			+ "</sl:LocRefContent>";
+
+	@Override
+	public SigningState prepare(SignatureParameter parameter)
+			throws SignatureException {
+		PdfAs4SignatureParameter sign_para = null;
+
+		if (PdfAs4SignatureParameter.class.isInstance(parameter)) {
+			sign_para = PdfAs4SignatureParameter.class.cast(parameter);
+		}
+
+		if (sign_para == null) {
+			throw new SignatureException("Incorrect SignatureParameter!");
+		}
+
+		String sigProfile = sign_para.getPdfAsSignatureProfileId();
+		String sigEmblem = (sign_para.getEmblem() == null ? null : sign_para.getEmblem().getFileName());
+		String sigNote = sign_para.getProperty("SIG_NOTE");
+		String sigPos = sign_para.getPdfAsSignaturePosition();
+
+		PdfAs pdfas = PdfAs4Helper.getPdfAs();
+		Configuration config = pdfas.getConfiguration();
+		if (sigEmblem != null && !sigEmblem.trim().isEmpty()) {
+			config.setValue("sig_obj." + sigProfile + ".value.SIG_LABEL", sigEmblem);
+		}
+		
+		if(sigNote != null) {
+			config.setValue("sig_obj." + sigProfile + ".value.SIG_NOTE", sigNote);
+		}
+
+		PdfAs4SigningState state = new PdfAs4SigningState();
+		ByteArrayOutputStream output = new ByteArrayOutputStream();
+		DataSource input = new ByteArrayDataSource(parameter.getInputDocument().getByteArray());
+		SignParameter param = PdfAsFactory.createSignParameter(config, input, output);
+		param.setSignaturePosition(sigPos);
+		param.setSignatureProfileId(sigProfile);
+		String id = UUID.randomUUID().toString();
+		param.setTransactionId(id);
+		state.setSignParameter(param);
+		state.setOutput(output);
+		return state;
+	}
+
+	@Override
+	public SignResult sign(SigningState state) throws SignatureException {
+		try {
+			PdfAs4SigningState sstate = null;
+
+			if (PdfAs4SigningState.class.isInstance(state)) {
+				sstate = PdfAs4SigningState.class.cast(state);
+			}
+
+			if (sstate == null) {
+				throw new SignatureException("Incorrect SigningState!");
+			}
+
+			// Retrieve objects
+			PdfAs pdfas = PdfAs4Helper.getPdfAs();
+
+			SignParameter param = sstate.getSignParameter();
+
+			ISLConnector connector = new PdfAs4BKUSLConnector(sstate.getBKUConnector());
+			param.setPlainSigner(new PAdESSigner(connector));
+
+			pdfas.sign(param);
+
+			// Preparing Result Response
+			SignResultImpl result = new SignResultImpl();
+
+//			// Set Signer Certificate
+//			result.setSignerCertificate(..);
+			
+			// Set Signature position
+			TablePos tp = new TablePos(param.getSignaturePosition());
+			SignaturePosition sp;
+			if (tp.isXauto() && tp.isYauto())
+				sp = new SignaturePosition();
+			else if (tp.isPauto())
+				sp = new SignaturePosition(tp.getPosX(), tp.getPosY());
+			else
+				sp = new SignaturePosition(tp.getPosX(), tp.getPosY(), tp.getPage());
+			result.setSignaturePosition(sp);
+
+			// Set signed Document
+			result.setSignedDocument(new ByteArrayDocumentSource(sstate.getOutput().toByteArray()));
+			return result;
+		} catch (PdfAsException e) {
+			throw new SignatureException(e);
+		} catch (PDFASError e) {
+			throw new SignatureException(e);
+		}
+	}
+
+	@Override
+	public SignatureParameter newParameter() {
+		return new PdfAs4SignatureParameter();
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignerFactory.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignerFactory.java
new file mode 100644
index 00000000..3fa7ce16
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SignerFactory.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas;
+
+//Imports
+import at.asit.pdfover.signator.Signer;
+import at.asit.pdfover.signator.SignerFactory;
+
+/**
+ * Factory class for PDF-AS Signer
+ */
+public class PdfAs4SignerFactory extends SignerFactory {
+
+	@Override
+	public Signer createSigner() {
+		return new PdfAs4Signer();
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SigningState.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SigningState.java
new file mode 100644
index 00000000..b8280142
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/PdfAs4SigningState.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas;
+
+//Imports
+import java.io.ByteArrayOutputStream;
+
+import at.asit.pdfover.signator.BkuSlConnector;
+import at.asit.pdfover.signator.SLRequest;
+import at.asit.pdfover.signator.SLResponse;
+import at.asit.pdfover.signator.SigningState;
+import at.gv.egiz.pdfas.lib.api.sign.SignParameter;
+
+/**
+ * Signing State for PDFAS Wrapper
+ */
+public class PdfAs4SigningState implements SigningState {
+
+	/**
+	 * The Signature Layer request
+	 */
+	private SLRequest slrequest;
+
+	/**
+	 * The Signature Layer response
+	 */
+	private SLResponse slresponse;
+
+	/**
+	 * The Sign Parameters
+	 */
+	private SignParameter parameter;
+
+	private ByteArrayOutputStream output;
+
+	private BkuSlConnector connector;
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#getSignatureRequest()
+	 */
+	@Override
+	public SLRequest getSignatureRequest() {
+		return this.slrequest;
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#setSignatureResponse(at.asit.pdfover.signator.SLResponse)
+	 */
+	@Override
+	public void setSignatureResponse(SLResponse response) {
+		this.slresponse = response;
+	}
+
+	/**
+	 * Sets the SL Request
+	 * @param request The SL Request
+	 */
+	public void setSignatureRequest(SLRequest request) {
+		this.slrequest = request;
+	}
+
+	/**
+	 * Gets the SL Response
+	 * @return The SL Response object
+	 */
+	public SLResponse getSignatureResponse() {
+		return this.slresponse;
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#hasSignatureResponse()
+	 */
+	@Override
+	public boolean hasSignatureResponse() {
+		return this.slresponse != null;
+	}
+
+	/**
+	 * @return the output
+	 */
+	public ByteArrayOutputStream getOutput() {
+		return this.output;
+	}
+
+	/**
+	 * @param output the output to set
+	 */
+	public void setOutput(ByteArrayOutputStream output) {
+		this.output = output;
+	}
+
+	/**
+	 * @return the parameter
+	 */
+	public SignParameter getSignParameter() {
+		return this.parameter;
+	}
+
+	/**
+	 * @param parameter the parameter to set
+	 */
+	public void setSignParameter(SignParameter parameter) {
+		this.parameter = parameter;
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.signator.SigningState#setBKUConnector(at.asit.pdfover.signator.BkuSlConnector)
+	 */
+	@Override
+	public void setBKUConnector(BkuSlConnector connector) {
+		this.connector = connector;
+	}
+
+	/**
+	 * @return the connector
+	 */
+	public BkuSlConnector getBKUConnector() {
+		return this.connector;
+	}
+}
diff --git a/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PdfAs4SLRequestException.java b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PdfAs4SLRequestException.java
new file mode 100644
index 00000000..70fe04c3
--- /dev/null
+++ b/pdf-over-signer/pdf-over-sigpdfas4/src/main/java/at/asit/pdfover/signer/pdfas/exceptions/PdfAs4SLRequestException.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.signer.pdfas.exceptions;
+
+/**
+ * 
+ */
+public class PdfAs4SLRequestException extends Exception {
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 6855855001105199269L;
+
+	/**
+	 * Constructor
+	 * @param msg
+	 */
+	public PdfAs4SLRequestException(String msg) {
+		super(msg);
+	}
+}