vcl: use svl signing and remove moved code

Change-Id: Id875a675d7ab649c9223ecca5de2da69ff4b8786
Reviewed-on: https://gerrit.libreoffice.org/39718Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>

include/vcl/filter/pdfdocument.hxx

@@ -227,7 +227,7 @@ enum class XRefEntryType
     FREE,
     /// xref "n" or xref stream "1".
     NOT_COMPRESSED,
-    /// xref stream "2.
+    /// xref stream "2".
     COMPRESSED
 };
 

vcl/source/filter/ipdf/pdfdocument.cxx

@@ -25,6 +25,7 @@
 #include <sal/log.hxx>
 #include <sal/types.h>
 #include <sax/tools/converter.hxx>
+#include <svl/cryptosign.hxx>
 #include <tools/zcodec.hxx>
 #include <unotools/calendarwrapper.hxx>
 #include <unotools/datetime.hxx>
@@ -837,14 +838,10 @@ bool PDFDocument::Sign(const uno::Reference<security::XCertificate>& xCertificat
     m_aEditBuffer.ReadBytes(aBuffer2.get(), nBufferSize2);
 
     OStringBuffer aCMSHexBuffer;
-    vcl::PDFWriter::PDFSignContext aSignContext(aCMSHexBuffer);
-    aSignContext.m_pDerEncoded = aDerEncoded.getArray();
-    aSignContext.m_nDerEncoded = aDerEncoded.getLength();
-    aSignContext.m_pByteRange1 = aBuffer1.get();
-    aSignContext.m_nByteRange1 = nBufferSize1;
-    aSignContext.m_pByteRange2 = aBuffer2.get();
-    aSignContext.m_nByteRange2 = nBufferSize2;
-    if (!vcl::PDFWriter::Sign(aSignContext))
+    svl::crypto::Signing aSigning(xCertificate);
+    aSigning.AddDataRange(aBuffer1.get(), nBufferSize1);
+    aSigning.AddDataRange(aBuffer2.get(), nBufferSize2);
+    if (!aSigning.Sign(aCMSHexBuffer))
     {
         SAL_WARN("vcl.filter", "PDFDocument::Sign: PDFWriter::Sign() failed");
         return false;