1 files changed, 54 insertions, 5 deletions

diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/sl/util/ISignatureConnectorSLWrapper.java b/pdf-as-lib/src/main/java/at/gv/egiz/sl/util/ISignatureConnectorSLWrapper.java
index 8a7950a4..3a998816 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/sl/util/ISignatureConnectorSLWrapper.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/sl/util/ISignatureConnectorSLWrapper.java
@@ -1,11 +1,19 @@
 package at.gv.egiz.sl.util;
 
+import java.io.ByteArrayInputStream;
+import java.security.SignatureException;
 import java.security.cert.CertificateException;
 import java.util.Iterator;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import iaik.cms.SignedData;
+import iaik.cms.SignerInfo;
 import iaik.x509.X509Certificate;
 import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
 import at.gv.egiz.pdfas.lib.api.sign.IPlainSigner;
+import at.gv.egiz.pdfas.lib.impl.verify.VerifyResultImpl;
 import at.gv.egiz.sl.CreateCMSSignatureRequestType;
 import at.gv.egiz.sl.CreateCMSSignatureResponseType;
 import at.gv.egiz.sl.InfoboxAssocArrayPairType;
@@ -14,12 +22,15 @@ import at.gv.egiz.sl.InfoboxReadResponseType;
 
 public class ISignatureConnectorSLWrapper implements ISignatureConnector {
 
+	private static final Logger logger = LoggerFactory
+			.getLogger(ISignatureConnectorSLWrapper.class);
+
 	private ISLConnector connector;
-	
+
 	public ISignatureConnectorSLWrapper(ISLConnector connector) {
 		this.connector = connector;
 	}
-	
+
 	public X509Certificate getCertificate() throws PdfAsException {
 		X509Certificate certificate = null;
 		try {
@@ -47,9 +58,47 @@ public class ISignatureConnectorSLWrapper implements ISignatureConnector {
 	}
 
 	public byte[] sign(byte[] input, int[] byteRange) throws PdfAsException {
-		CreateCMSSignatureRequestType request = connector.createCMSRequest(input, byteRange);		
-		CreateCMSSignatureResponseType response = connector.sendCMSRequest(request);
-		
+		CreateCMSSignatureRequestType request = connector.createCMSRequest(
+				input, byteRange);
+		CreateCMSSignatureResponseType response = connector
+				.sendCMSRequest(request);
+		try {
+			SignedData signedData = new SignedData(new ByteArrayInputStream(
+					response.getCMSSignature()));
+
+			signedData.setContent(input);
+
+			// get the signer infos
+			SignerInfo[] signerInfos = signedData.getSignerInfos();
+			// verify the signatures
+			for (int i = 0; i < signerInfos.length; i++) {
+				VerifyResultImpl verifyResult = new VerifyResultImpl();
+				try {
+
+					// verify the signature for SignerInfo at index i
+					X509Certificate signer_cert = signedData.verify(i);
+					// if the signature is OK the certificate of the
+					// signer is returned
+					logger.info("Signature OK from signer: "
+							+ signer_cert.getSubjectDN());
+					verifyResult.setSignerCertificate(signer_cert);
+				} catch (SignatureException ex) {
+					// if the signature is not OK a SignatureException
+					// is thrown
+					logger.info("Signature ERROR from signer: "
+							+ signedData.getCertificate(
+									signerInfos[i].getSignerIdentifier())
+									.getSubjectDN());
+
+					verifyResult.setSignerCertificate(signedData
+							.getCertificate(signerInfos[i]
+									.getSignerIdentifier()));
+				}
+			}
+		} catch (Exception e) {
+			logger.error("ERROR", e);
+		}
+
 		return response.getCMSSignature();
 	}