data+interest+selectors+meta-info+signature: Implementing EqualityComparable concept

Change-Id: I54f04820861bdc7b4e001949f1ba8d62f9a66786
diff --git a/src/security/signature-sha256.hpp b/src/security/signature-sha256.hpp
index 99b550d..11b7cdf 100644
--- a/src/security/signature-sha256.hpp
+++ b/src/security/signature-sha256.hpp
@@ -19,12 +19,12 @@
 public:
   SignatureSha256()
   {
-    info_ = Block(Tlv::SignatureInfo);
-    
-    type_ = Signature::Sha256;
-    info_.push_back(nonNegativeIntegerBlock(Tlv::SignatureType, Tlv::DigestSha256));
+    m_info = Block(Tlv::SignatureInfo);
+
+    m_type = Signature::Sha256;
+    m_info.push_back(nonNegativeIntegerBlock(Tlv::SignatureType, Tlv::DigestSha256));
   }
-  
+
   SignatureSha256(const Signature &signature)
     : Signature(signature)
   {