diff --git a/concordia/hash_generator.cpp b/concordia/hash_generator.cpp
new file mode 100644
index 0000000..2916f4b
--- /dev/null
+++ b/concordia/hash_generator.cpp
@@ -0,0 +1,33 @@
+#include "concordia/hash_generator.hpp"
+#include <boost/filesystem.hpp>
+#include <boost/archive/binary_oarchive.hpp>
+#include <boost/archive/binary_iarchive.hpp>
+#include <boost/serialization/map.hpp>
+#include <fstream>
+
+
+HashGenerator::HashGenerator(const string & wordMapFilename) throw(ConcordiaException) {
+    _wordMapFilename = wordMapFilename;
+    if (boost::filesystem::exists(_wordMapFilename)) {
+        ifstream ifs(_wordMapFilename.c_str(), std::ios::binary);
+        boost::archive::binary_iarchive ia(ifs);
+        ia >> _wordMap;
+        
+    }  
+}
+
+HashGenerator::~HashGenerator() {
+}
+
+vector<int> HashGenerator::generateHash(const string & sentence) {
+    vector<int> result;
+    return result;
+}
+
+void HashGenerator::serializeWordMap() {
+    ofstream ofs(_wordMapFilename.c_str(), std::ios::binary);
+    boost::archive::binary_oarchive oa(ofs);
+    oa << _wordMap;
+}
+
+
diff --git a/concordia/hash_generator.hpp b/concordia/hash_generator.hpp
new file mode 100644
index 0000000..588240a
--- /dev/null
+++ b/concordia/hash_generator.hpp
@@ -0,0 +1,37 @@
+#ifndef HASH_GENERATOR_HDR
+#define HASH_GENERATOR_HDR
+
+#include <string>
+#include <map>
+#include <vector>
+
+#include "concordia/concordia_config.hpp"
+
+/*!
+  Class for generating a sentence hash.
+
+*/
+
+using namespace std;
+
+class HashGenerator {
+public:
+    explicit HashGenerator(const string & wordMapFilename) throw(ConcordiaException);
+   
+    /*! Destructor.
+    */
+    virtual ~HashGenerator();
+
+    vector<int> generateHash(const string & sentence);
+
+    void serializeWordMap();
+
+private:
+    
+    map<int,string> _wordMap;
+    
+    string _wordMapFilename;
+
+};
+
+#endif