diff --git a/src/specific-policy-rule.cc b/src/specific-policy-rule.cc
new file mode 100644
index 0000000..9fbd23a
--- /dev/null
+++ b/src/specific-policy-rule.cc
@@ -0,0 +1,50 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Yingdi Yu
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#include "specific-policy-rule.h"
+#include <ndn.cxx/fields/signature-sha256-with-rsa.h>
+
+using namespace ndn;
+using namespace std;
+using namespace ndn::security;
+
+
+SpecificPolicyRule::SpecificPolicyRule(Ptr<Regex> dataRegex,
+				       Ptr<Regex> signerRegex)
+  : PolicyRule(PolicyRule::IDENTITY_POLICY, true)
+  , m_dataRegex(dataRegex)
+  , m_signerRegex(signerRegex)
+{}
+
+SpecificPolicyRule::SpecificPolicyRule(const SpecificPolicyRule& rule)
+  : PolicyRule(PolicyRule::IDENTITY_POLICY, true)
+  , m_dataRegex(rule.m_dataRegex)
+  , m_signerRegex(rule.m_signerRegex)
+{}
+
+bool 
+SpecificPolicyRule::matchDataName(const Data & data)
+{ return m_dataRegex->match(data.getName()); }
+
+bool 
+SpecificPolicyRule::matchSignerName(const Data & data)
+{ 
+  Ptr<const signature::Sha256WithRsa> sigPtr = DynamicCast<const signature::Sha256WithRsa> (data.getSignature());
+  Name signerName = sigPtr->getKeyLocator ().getKeyName ();
+  return m_signerRegex->match(signerName); 
+}
+
+bool
+SpecificPolicyRule::satisfy(const Data & data)
+{ return (matchDataName(data) && matchSignerName(data)) ? true : false ; }
+
+bool
+SpecificPolicyRule::satisfy(const Name & dataName, const Name & signerName)
+{ return (m_dataRegex->match(dataName) && m_signerRegex->match(signerName)); }