diff --git a/ndn-cpp/util/dynamic-uchar-vector.cpp b/ndn-cpp/util/dynamic-uchar-vector.cpp
new file mode 100644
index 0000000..d346494
--- /dev/null
+++ b/ndn-cpp/util/dynamic-uchar-vector.cpp
@@ -0,0 +1,31 @@
+/**
+ * @author: Jeff Thompson
+ * See COPYING for copyright and distribution information.
+ */
+
+#include "dynamic-uchar-vector.hpp"
+
+using namespace std;
+
+namespace ndn {
+
+DynamicUCharVector::DynamicUCharVector(unsigned int initialLength)
+: vector_(new vector<unsigned char>(initialLength))
+{
+  ndn_DynamicUCharArray_init(this, &vector_->front(), initialLength, DynamicUCharVector::realloc);
+}
+
+unsigned char *DynamicUCharVector::realloc(struct ndn_DynamicUCharArray *self, unsigned char *array, unsigned int length)
+{
+  // Because this method is private, assume there is not a problem with upcasting.
+  DynamicUCharVector *thisObject = (DynamicUCharVector *)self;
+  
+  if (array != &thisObject->vector_->front())
+    // We don't expect this to ever happen. The caller didn't pass the array from this object.
+    return 0;
+  
+  thisObject->vector_->reserve(length);
+  return &thisObject->vector_->front();
+}
+
+}