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authorAndreas Fitzek <andreas.fitzek@iaik.tugraz.at>2013-10-02 10:28:30 +0200
committerAndreas Fitzek <andreas.fitzek@iaik.tugraz.at>2013-10-02 10:28:30 +0200
commit0876981fd70fdab07f7c3e1666cf77071b5fe03d (patch)
tree0661571d1d757383fee936d1c4648d2c31b43ddb /pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl
parentadd4460d9619f3586a02ae0d8c028f01903494bc (diff)
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+ added PKCS7 detached siganture standard via keystore
+ added simple verification implementation
Diffstat (limited to 'pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl')
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java139
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java8
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/sig_interface/JKSSigner.java78
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/FilterEntry.java28
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java11
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifierDispatcher.java61
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifyResultImpl.java75
-rw-r--r--pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/package-info.java8
8 files changed, 307 insertions, 101 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
index 5bda572b..a8cee107 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java
@@ -1,12 +1,24 @@
package at.gv.egiz.pdfas.lib.impl;
+import iaik.cms.CMSException;
+import iaik.cms.CMSParsingException;
+import iaik.cms.SignedData;
+import iaik.cms.SignerInfo;
import iaik.x509.X509Certificate;
import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
import java.io.File;
+import java.io.IOException;
import java.io.OutputStream;
+import java.security.SignatureException;
import java.util.List;
+import org.apache.pdfbox.cos.COSArray;
+import org.apache.pdfbox.cos.COSBase;
+import org.apache.pdfbox.cos.COSDictionary;
+import org.apache.pdfbox.cos.COSName;
+import org.apache.pdfbox.cos.COSString;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -17,6 +29,7 @@ import at.gv.egiz.pdfas.common.exceptions.PdfAsSettingsException;
import at.gv.egiz.pdfas.common.settings.ISettings;
import at.gv.egiz.pdfas.common.settings.Settings;
import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.common.utils.StringUtils;
import at.gv.egiz.pdfas.lib.api.Configuration;
import at.gv.egiz.pdfas.lib.api.IConfigurationConstants;
import at.gv.egiz.pdfas.lib.api.PdfAs;
@@ -36,25 +49,28 @@ import at.gv.egiz.pdfas.lib.impl.stamping.StamperFactory;
import at.gv.egiz.pdfas.lib.impl.stamping.TableFactory;
import at.gv.egiz.pdfas.lib.impl.status.OperationStatus;
import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
+import at.gv.egiz.pdfas.lib.impl.verify.IVerifyFilter;
+import at.gv.egiz.pdfas.lib.impl.verify.VerifierDispatcher;
import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction;
import at.knowcenter.wag.egov.egiz.pdf.TablePos;
import at.knowcenter.wag.egov.egiz.table.Table;
public class PdfAsImpl implements PdfAs, IConfigurationConstants {
- private static final Logger logger = LoggerFactory.getLogger(PdfAsImpl.class);
-
+ private static final Logger logger = LoggerFactory
+ .getLogger(PdfAsImpl.class);
+
private Settings settings;
-
+
public PdfAsImpl(File cfgFile) {
logger.info("Initializing PDF-AS with config: " + cfgFile.getPath());
this.settings = new Settings(cfgFile);
}
-
+
public SignResult sign(SignParameter parameter) throws PdfAsException {
logger.trace("sign started");
-
+
// TODO: verify signParameter
try {
@@ -62,7 +78,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
if (!(parameter.getConfiguration() instanceof ISettings)) {
throw new PdfAsSettingsException("Invalid settings object!");
}
-
+
ISettings settings = (ISettings) parameter.getConfiguration();
OperationStatus status = new OperationStatus(settings, parameter);
PlaceholderConfiguration placeholderConfiguration = status
@@ -76,7 +92,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
.getSignatureProfileID();
logger.info("Selected signature Profile: " + signatureProfileID);
-
+
SignatureProfileConfiguration signatureProfileConfiguration = status
.getSignatureProfileConfiguration(signatureProfileID);
@@ -88,7 +104,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
if (placeholderConfiguration.isGlobalPlaceholderEnabled()) {
// TODO: Do placeholder search
}
-
+
if (requestedSignature.isVisual()) {
logger.info("Creating visual siganture block");
// ================================================================
@@ -98,9 +114,11 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
.createProfile(signatureProfileID, settings);
Table main = TableFactory.createSigTable(
- signatureProfileSettings, MAIN, settings, requestedSignature);
+ signatureProfileSettings, MAIN, settings,
+ requestedSignature);
- IPDFStamper stamper = StamperFactory.createDefaultStamper(settings);
+ IPDFStamper stamper = StamperFactory
+ .createDefaultStamper(settings);
IPDFVisualObject visualObject = stamper.createVisualPDFObject(
status.getPdfObject(), main);
@@ -149,19 +167,22 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
// TODO: Create signature
IPdfSigner signer = PdfSignerFactory.createPdfSigner();
- signer.signPDF(status.getPdfObject(), requestedSignature, status.getSignParamter().getPlainSigner());
-
- //status.getPdfObject().setSignedDocument(status.getPdfObject().getStampedDocument());
-
+ signer.signPDF(status.getPdfObject(), requestedSignature, status
+ .getSignParamter().getPlainSigner());
+
+ // status.getPdfObject().setSignedDocument(status.getPdfObject().getStampedDocument());
+
// ================================================================
// Create SignResult
- SignResultImpl result = new SignResultImpl(status.getSignParamter().getOutput());
- OutputStream outputStream = result.getOutputDocument().createOutputStream();
-
+ SignResultImpl result = new SignResultImpl(status.getSignParamter()
+ .getOutput());
+ OutputStream outputStream = result.getOutputDocument()
+ .createOutputStream();
+
outputStream.write(status.getPdfObject().getSignedDocument());
-
+
outputStream.close();
-
+
return result;
} catch (Throwable e) {
logger.error("sign failed " + e.getMessage(), e);
@@ -172,7 +193,85 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants {
}
public List<VerifyResult> verify(VerifyParameter parameter) {
- // TODO Auto-generated method stub
+ try {
+ ISettings settings = (ISettings) parameter.getConfiguration();
+ VerifierDispatcher verifier = new VerifierDispatcher(settings);
+ PDDocument doc = PDDocument.load(new ByteArrayInputStream(parameter
+ .getDataSource().getByteData()));
+
+ COSDictionary trailer = doc.getDocument().getTrailer();
+ COSDictionary root = (COSDictionary) trailer
+ .getDictionaryObject(COSName.ROOT);
+ COSDictionary acroForm = (COSDictionary) root
+ .getDictionaryObject(COSName.ACRO_FORM);
+ COSArray fields = (COSArray) acroForm
+ .getDictionaryObject(COSName.FIELDS);
+ for (int i = 0; i < fields.size(); i++) {
+ COSDictionary field = (COSDictionary) fields.getObject(i);
+ String type = field.getNameAsString("FT");
+ if ("Sig".equals(type)) {
+ logger.trace("Found Signature: ");
+ COSBase base = field.getDictionaryObject("V");
+ COSDictionary dict = (COSDictionary) base;
+
+ logger.debug("Signer: "
+ + dict.getNameAsString("Name"));
+ logger.debug("SubFilter: "
+ + dict.getNameAsString("SubFilter"));
+ logger.debug("Filter: "
+ + dict.getNameAsString("Filter"));
+ logger.debug("Modified: " + dict.getNameAsString("M"));
+ COSArray byteRange = (COSArray) dict
+ .getDictionaryObject("ByteRange");
+
+
+ StringBuilder sb = new StringBuilder();
+ int[] bytes = new int[byteRange.size()];
+ for (int j = 0; j < byteRange.size(); j++) {
+ bytes[j] = byteRange.getInt(j);
+ sb.append(" " + bytes[j]);
+ }
+
+ logger.debug("ByteRange" + sb.toString());
+
+ COSString content = (COSString) dict
+ .getDictionaryObject("Contents");
+ /*logger.trace("Content: "
+ + StringUtils.bytesToHexString(content.getBytes()));*/
+
+ ByteArrayOutputStream contentData = new ByteArrayOutputStream();
+ for (int j = 0; j < bytes.length; j = j + 2) {
+ int offset = bytes[j];
+ int length = bytes[j + 1];
+ contentData.write(parameter.getDataSource()
+ .getByteData(), offset, length);
+ }
+ contentData.close();
+
+ IVerifyFilter verifyFilter =
+ verifier.getVerifier(dict.getNameAsString("Filter"), dict.getNameAsString("SubFilter"));
+
+ verifyFilter.verify(contentData.toByteArray(), content.getBytes());
+
+ /*
+ * Iterator<Map.Entry<COSName, COSBase>> iterator =
+ * dict.entrySet().iterator();
+ *
+ * while(iterator.hasNext()) { Map.Entry<COSName, COSBase>
+ * entry = iterator.next(); System.out.println("Key: "
+ * +entry.getKey().toString());
+ *
+ * }
+ */
+
+ }
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ } catch (PdfAsException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
return null;
}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
index 82ee57fe..7f16a87a 100644
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
@@ -8,6 +8,7 @@ import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;
+import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.exceptions.COSVisitorException;
import org.apache.pdfbox.exceptions.SignatureException;
import org.apache.pdfbox.pdmodel.PDDocument;
@@ -52,8 +53,8 @@ public class PADESPDFBOXSigner implements IPdfSigner {
new ByteArrayInputStream(pdfObject.getStampedDocument()));
PDSignature signature = new PDSignature();
- signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE); // default filter
- signature.setSubFilter(PDSignature.SUBFILTER_ETSI_CADES_DETACHED);
+ signature.setFilter(COSName.getPDFName(signer.getPDFFilter())); // default filter
+ signature.setSubFilter(COSName.getPDFName(signer.getPDFSubFilter()));
SignatureProfileSettings signatureProfileSettings = TableFactory
.createProfile(requestedSignature.getSignatureProfileID(),
@@ -62,7 +63,8 @@ public class PADESPDFBOXSigner implements IPdfSigner {
ValueResolver resolver = new ValueResolver();
String signerName = resolver.resolve("SIG_SUBJECT", signatureProfileSettings.getValue("SIG_SUBJECT"),
signatureProfileSettings, requestedSignature);
- // TODO: change signature data from certificate
+
+
signature.setName(signerName);
//signature.setLocation("signer location");
signature.setReason("PDF-AS Signatur");
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/sig_interface/JKSSigner.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/sig_interface/JKSSigner.java
deleted file mode 100644
index 85697436..00000000
--- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/sig_interface/JKSSigner.java
+++ /dev/null
@@ -1,78 +0,0 @@
-package at.gv.egiz.pdfas.lib.impl.signing.sig_interface;
-
-import iaik.asn1.structures.AlgorithmID;
-import iaik.cms.SignedDataStream;
-import iaik.cms.SignerInfo;
-import iaik.cms.SubjectKeyID;
-import iaik.security.ecc.provider.ECCProvider;
-import iaik.security.provider.IAIK;
-import iaik.x509.X509Certificate;
-import iaik.x509.X509ExtensionException;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.security.KeyStore;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.cert.Certificate;
-
-import org.apache.pdfbox.exceptions.SignatureException;
-
-import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
-import at.gv.egiz.pdfas.lib.api.sign.IPlainSigner;
-
-public class JKSSigner implements IPlainSigner {
-
- PrivateKey privKey;
- X509Certificate cert;
-
- public JKSSigner(String file, String alias, String kspassword,
- String keypassword, String type) throws PdfAsException {
- try {
- IAIK.getInstance();
- ECCProvider.addAsProvider();
- KeyStore ks = KeyStore.getInstance(type);
- ks.load(new FileInputStream(file), kspassword.toCharArray());
- privKey = (PrivateKey) ks.getKey(alias, keypassword.toCharArray());
- cert = new X509Certificate(ks.getCertificate(alias).getEncoded());
- } catch (Throwable e) {
- throw new PdfAsException("Failed to get KeyStore", e);
- }
- }
-
- public X509Certificate getCertificate() {
- return cert;
- }
-
- public byte[] sign(byte[] input) throws SignatureException, IOException {
- try {
- SignedDataStream signed_data_stream = new SignedDataStream(
- new ByteArrayInputStream(input), SignedDataStream.EXPLICIT);
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- signed_data_stream.addCertificates(new Certificate[] { cert });
-
- SubjectKeyID subjectKeyId = new SubjectKeyID(cert);
- SignerInfo signer1 = new SignerInfo(subjectKeyId,
- AlgorithmID.sha256, privKey);
- signed_data_stream.addSignerInfo(signer1);
- InputStream data_is = signed_data_stream.getInputStream();
- if (signed_data_stream.getMode() == SignedDataStream.EXPLICIT) {
- byte[] buf = new byte[1024];
- int r;
- while ((r = data_is.read(buf)) > 0) {
- // do something useful
- }
- }
- signed_data_stream.writeTo(baos);
- return baos.toByteArray();
- } catch (NoSuchAlgorithmException e) {
- throw new SignatureException(e);
- } catch (X509ExtensionException e) {
- throw new SignatureException(e);
- }
- }
-
-}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/FilterEntry.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/FilterEntry.java
new file mode 100644
index 00000000..59b20c97
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/FilterEntry.java
@@ -0,0 +1,28 @@
+package at.gv.egiz.pdfas.lib.impl.verify;
+
+import org.apache.pdfbox.cos.COSName;
+
+public class FilterEntry {
+ private COSName filter;
+ private COSName subFilter;
+
+ public FilterEntry(COSName filter, COSName subfilter) {
+ this.filter = filter;
+ this.subFilter = subfilter;
+ }
+
+ public COSName getFilter() {
+ return filter;
+ }
+ public void setFilter(COSName filter) {
+ this.filter = filter;
+ }
+ public COSName getSubFilter() {
+ return subFilter;
+ }
+ public void setSubFilter(COSName subFilter) {
+ this.subFilter = subFilter;
+ }
+
+
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java
new file mode 100644
index 00000000..7aca582b
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/IVerifyFilter.java
@@ -0,0 +1,11 @@
+package at.gv.egiz.pdfas.lib.impl.verify;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.lib.api.verify.VerifyResult;
+
+public interface IVerifyFilter {
+ public List<VerifyResult> verify(byte[] contentData, byte[] signatureContent) throws PdfAsException;
+ public List<FilterEntry> getFiters();
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifierDispatcher.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifierDispatcher.java
new file mode 100644
index 00000000..0de3a71e
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifierDispatcher.java
@@ -0,0 +1,61 @@
+package at.gv.egiz.pdfas.lib.impl.verify;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.common.settings.ISettings;
+
+public class VerifierDispatcher {
+
+ private static final Logger logger = LoggerFactory.getLogger(VerifierDispatcher.class);
+
+ public static final String currentClass = "at.gv.egiz.pdfas.sigs.pkcs7detached.PKCS7DetachedVerifier";
+
+ public Map<String, HashMap<String, IVerifyFilter>> filterMap = new HashMap<String, HashMap<String, IVerifyFilter>>();
+
+ public VerifierDispatcher(ISettings settings) {
+ // TODO: read config build verify filter
+ try {
+ Class<? extends IVerifyFilter> cls = (Class<? extends IVerifyFilter>) Class.forName(currentClass);
+ IVerifyFilter fitler = cls.newInstance();
+ List<FilterEntry> entries = fitler.getFiters();
+ Iterator<FilterEntry> it = entries.iterator();
+ while(it.hasNext()) {
+ FilterEntry entry = it.next();
+ HashMap<String, IVerifyFilter> filters = filterMap.get(entry.getFilter().getName());
+ if(filters == null) {
+ filters = new HashMap<String, IVerifyFilter>();
+ filterMap.put(entry.getFilter().getName(), filters);
+ }
+
+ IVerifyFilter oldFilter = filters.get(entry.getSubFilter().getName());
+
+ if(oldFilter != null) {
+ throw new PdfAsException("Filter allready registered");
+ }
+
+ filters.put(entry.getSubFilter().getName(), fitler);
+ logger.debug("Registered Filter: " + cls.getName() + " for " + entry.getFilter().getName() + "/" + entry.getSubFilter().getName());
+ }
+ } catch(Throwable e) {
+ e.printStackTrace();
+ }
+
+ }
+
+ public IVerifyFilter getVerifier(String filter, String subfilter) {
+ HashMap<String, IVerifyFilter> filters = filterMap.get(filter);
+ if(filters == null) {
+ return null;
+ }
+
+ return filters.get(subfilter);
+ }
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifyResultImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifyResultImpl.java
new file mode 100644
index 00000000..451c1706
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/VerifyResultImpl.java
@@ -0,0 +1,75 @@
+package at.gv.egiz.pdfas.lib.impl.verify;
+
+import iaik.x509.X509Certificate;
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.lib.api.verify.SignatureCheck;
+import at.gv.egiz.pdfas.lib.api.verify.VerifyResult;
+
+public class VerifyResultImpl implements VerifyResult {
+
+ private boolean verificationDone;
+ private boolean qualifiedCertificate;
+ private PdfAsException verificationException;
+ private SignatureCheck certificateCheck;
+ private SignatureCheck valueCheck;
+ private SignatureCheck manifestCheck;
+
+ private X509Certificate signerCertificate;
+
+ public boolean isVerificationDone() {
+ return verificationDone;
+ }
+
+ public void setVerificationDone(boolean value) {
+ this.verificationDone = value;
+ }
+
+ public PdfAsException getVerificationException() {
+ return verificationException;
+ }
+
+ public void setVerificationException(PdfAsException e) {
+ verificationException = e;
+ }
+
+ public SignatureCheck getCertificateCheck() {
+ return certificateCheck;
+ }
+
+ public void setCertificateCheck(SignatureCheck certificateCheck) {
+ this.certificateCheck=certificateCheck;
+ }
+
+ public SignatureCheck getValueCheckCode() {
+ return valueCheck;
+ }
+
+ public void setValueCheckCode(SignatureCheck valueCheck) {
+ this.valueCheck=valueCheck;
+ }
+
+ public SignatureCheck getManifestCheckCode() {
+ return manifestCheck;
+ }
+
+ public void setManifestCheckCode(SignatureCheck manifestCheck) {
+ this.manifestCheck=manifestCheck;
+ }
+
+ public boolean isQualifiedCertificate() {
+ return qualifiedCertificate;
+ }
+
+ public void setQualifiedCertificate(boolean value) {
+ this.qualifiedCertificate = value;
+ }
+
+ public X509Certificate getSignerCertificate() {
+ return signerCertificate;
+ }
+
+ public void setSignerCertificate(X509Certificate signerCertificate) {
+ this.signerCertificate = signerCertificate;
+ }
+
+}
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/package-info.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/package-info.java
new file mode 100644
index 00000000..393a65b4
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/verify/package-info.java
@@ -0,0 +1,8 @@
+/**
+ *
+ */
+/**
+ * @author afitzek
+ *
+ */
+package at.gv.egiz.pdfas.lib.impl.verify; \ No newline at end of file