diff --git a/src/security/sec-rule-relative.cpp b/src/security/sec-rule-relative.cpp
index 1fdfa7d..6133aac 100644
--- a/src/security/sec-rule-relative.cpp
+++ b/src/security/sec-rule-relative.cpp
@@ -20,7 +20,7 @@
 
 namespace ndn {
 
-SecRuleRelative::SecRuleRelative (const string& dataRegex, const string& signerRegex, const string& op, 
+SecRuleRelative::SecRuleRelative (const string& dataRegex, const string& signerRegex, const string& op,
                                   const string& dataExpand, const string& signerExpand, bool isPositive)
   : SecRule(isPositive),
     m_dataRegex(dataRegex),
@@ -31,68 +31,73 @@
     m_dataNameRegex(dataRegex, dataExpand),
     m_signerNameRegex(signerRegex, signerExpand)
 {
-  if(op != ">" && op != ">=" && op != "==")
+  if (op != ">" && op != ">=" && op != "==")
     throw Error("op is wrong!");
 }
 
 SecRuleRelative::~SecRuleRelative()
-{ }
+{
+}
 
-bool 
+bool
 SecRuleRelative::satisfy (const Data& data)
 {
   Name dataName = data.getName();
-  try{
+  try {
     SignatureSha256WithRsa sig(data.getSignature());
     Name signerName = sig.getKeyLocator().getName ();
-    return satisfy (dataName, signerName); 
-  }catch(SignatureSha256WithRsa::Error &e){
+    return satisfy (dataName, signerName);
+  }
+  catch (SignatureSha256WithRsa::Error& e){
     return false;
-  }catch(KeyLocator::Error &e){
+  }
+  catch (KeyLocator::Error& e){
     return false;
   }
 }
-  
-bool 
+
+bool
 SecRuleRelative::satisfy (const Name& dataName, const Name& signerName)
 {
-  if(!m_dataNameRegex.match(dataName))
+  if (!m_dataNameRegex.match(dataName))
     return false;
   Name expandDataName = m_dataNameRegex.expand();
 
-  if(!m_signerNameRegex.match(signerName))
+  if (!m_signerNameRegex.match(signerName))
     return false;
   Name expandSignerName =  m_signerNameRegex.expand();
-  
+
   bool matched = compare(expandDataName, expandSignerName);
-  
+
   return matched;
 }
 
-bool 
+bool
 SecRuleRelative::matchDataName (const Data& data)
 { return m_dataNameRegex.match(data.getName()); }
 
 bool
 SecRuleRelative::matchSignerName (const Data& data)
-{    
-  try{
+{
+  try {
     SignatureSha256WithRsa sig(data.getSignature());
     Name signerName = sig.getKeyLocator().getName ();
-    return m_signerNameRegex.match(signerName); 
-  }catch(SignatureSha256WithRsa::Error &e){
+    return m_signerNameRegex.match(signerName);
+  }
+  catch (SignatureSha256WithRsa::Error& e){
     return false;
-  }catch(KeyLocator::Error &e){
+  }
+  catch (KeyLocator::Error& e){
     return false;
   }
 }
 
-bool 
-SecRuleRelative::compare(const Name & dataName, const Name & signerName)
-{  
-  if((dataName == signerName) && ("==" == m_op || ">=" == m_op))
+bool
+SecRuleRelative::compare(const Name& dataName, const Name& signerName)
+{
+  if ((dataName == signerName) && ("==" == m_op || ">=" == m_op))
     return true;
-    
+
   Name::const_iterator i = dataName.begin ();
   Name::const_iterator j = signerName.begin ();
 
@@ -103,10 +108,10 @@
       else
         return false;
     }
-    
-  if(i == dataName.end())
+
+  if (i == dataName.end())
     return false;
-  else 
+  else
     return true;
 }