1 files changed, 32 insertions, 1 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java b/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
index 78165c2..c05c688 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
@@ -50,10 +50,41 @@ public final class BKUHelper
     String base64 = CodingHelper.encodeBase64(data.getData());
     if (data.getMimeType().equals("application/pdf")) //$NON-NLS-1$
     {
-      log.debug("The data is application/pdf - so it is Base64 encoded again."); //$NON-NLS-1$
+      log.debug("The data is application/pdf - so the binary data is Base64 encoded."); //$NON-NLS-1$
       base64 = CodingHelper.encodeUTF8AsBase64(base64);
     }
     return base64;
+
+  }
+
+  /**
+   * Prepares the enveloping data.
+   * <p>
+   * This is useful for building the hash.
+   * </p>
+   * 
+   * @param data
+   *          The data to be prepared.
+   * @return Returns the prepared data.
+   */
+  public static byte[] prepareEnvelopingData(SignatureData data)
+  {
+    byte[] enc = data.getData();
+    if (data.getMimeType().equals("application/pdf")) //$NON-NLS-1$
+    {
+      log.debug("The data is application/pdf - so the binary data is Base64 encoded."); //$NON-NLS-1$
+      String base64 = CodingHelper.encodeBase64(enc);
+      try
+      {
+        enc = base64.getBytes("US-ASCII"); //$NON-NLS-1$
+      }
+      catch (UnsupportedEncodingException e)
+      {
+        e.printStackTrace();
+        throw new RuntimeException("Very Strange: US-ASCII encoding not supported???", e); //$NON-NLS-1$
+      }
+    }
+    return enc;
   }
 
   /**