diff --git a/ndn-cpp/publisher-public-key-digest.hpp b/ndn-cpp/publisher-public-key-digest.hpp
index 7ce6dc7..9a31816 100644
--- a/ndn-cpp/publisher-public-key-digest.hpp
+++ b/ndn-cpp/publisher-public-key-digest.hpp
@@ -62,6 +62,23 @@
   { 
     publisherPublicKeyDigest_ = Blob(publisherPublicKeyDigest, publisherPublicKeyDigestLength); 
   }
+
+  /**
+   * Set the publisher public key digest to point to an existing byte array.  IMPORTANT: After calling this,
+   * if you keep a pointer to the array then you must treat the array as immutable and promise not to change it.
+   * @param signature A pointer to a vector with the byte array.  This takes another reference and does not copy the bytes.
+   */
+  void 
+  setPublisherPublicKeyDigest(const ptr_lib::shared_ptr<std::vector<unsigned char> > &publisherPublicKeyDigest) 
+  { 
+    publisherPublicKeyDigest_ = publisherPublicKeyDigest; 
+  }
+
+  void 
+  setPublisherPublicKeyDigest(const ptr_lib::shared_ptr<const std::vector<unsigned char> > &publisherPublicKeyDigest) 
+  { 
+    publisherPublicKeyDigest_ = publisherPublicKeyDigest; 
+  }
   
   /**
    * Clear the publisherPublicKeyDigest.