--- com/itextpdf/text/pdf/security/PrivateKeySignature.java.orig	2016-07-21 01:02:49.851030000 +0700
+++ com/itextpdf/text/pdf/security/PrivateKeySignature.java	2016-07-21 01:26:38.825192000 +0700
@@ -97,6 +97,10 @@ public class PrivateKeySignature impleme
     public String getEncryptionAlgorithm() {
         return encryptionAlgorithm;
     }
+
+    public String setEncryptionAlgorithm(String a) {
+        encryptionAlgorithm = a;
+    }
     
     /**
      * Signs it using the encryption algorithm in combination with