Search for encrypted object in QR-code signatures

public static class DocumentSignatureData
{
    public String getID(){ return ID; }
    public void setID(String value){ ID = value; }
    @FormatAttribute(propertyName = "SignID")
    public String ID;
 
 
    public final String getAuthor(){ return Author; }
    public final void setAuthor(String value){ Author = value; }
    @FormatAttribute(propertyName = "SAuth")
    public String Author;
    //JAVA-added public wrapper for internalized property accessor
 
    public final java.util.Date getSigned() {  return Signed; }
    public final void setSigned(java.util.Date value) { Signed = value; }
    @FormatAttribute (propertyName = "SDate",propertyFormat = "yyyy-MM-dd")
    public java.util.Date Signed = new java.util.Date();
 
 
    public final java.math.BigDecimal getDataFactor() { return DataFactor; }
    public final void setDataFactor(java.math.BigDecimal value) { DataFactor = value; }
    @FormatAttribute (propertyName = "SDFact",propertyFormat = "N2")
    public java.math.BigDecimal DataFactor = new java.math.BigDecimal(0.01);
}

Signature signature = new Signature("QRCodeEncryptedObject.pdf");
// setup key and passphrase
String key = "1234567890";
String salt = "1234567890";
// create data encryption
IDataEncryption encryption = new SymmetricEncryption(SymmetricAlgorithmType.Rijndael, key, salt);
 
QrCodeSearchOptions options = new QrCodeSearchOptions();
// specify special pages to search on
options.setAllPages(true);
options.setPageNumber(1);
PagesSetup pagesSetup = new PagesSetup();
pagesSetup.setFirstPage(false);
pagesSetup.setLastPage(true);
pagesSetup.setOddPages(false);
pagesSetup.setEvenPages(true);
options.setPagesSetup(pagesSetup);
// specify types of QR code to verify
options.setEncodeType(QrCodeTypes.QR);
options.setDataEncryption(encryption);
 
 
// search for signatures in document
List<QrCodeSignature> signatures = signature.search(QrCodeSignature.class,options);
System.out.print("\nSource document contains following signatures:");
for (QrCodeSignature qrCodeSignature : signatures)
{
    System.out.print("QRCode signature found at page "+qrCodeSignature.getPageNumber()+" with type "+ qrCodeSignature.getEncodeType());
    DocumentSignatureData documentSignatureData = qrCodeSignature.getData(DocumentSignatureData.class);
    if (documentSignatureData != null)
    {
        System.out.print("QRCode signature has DocumentSignatureData object:\n ID = " + documentSignatureData.getID() + ", Author = " + documentSignatureData.getAuthor() + ", Signed = " + documentSignatureData.getSigned() + ", DataFactor "+documentSignatureData.getDataFactor());
    }
}