diff --git a/include/codecrypt.h b/include/codecrypt.h
index d395005..e4bd316 100644
--- a/include/codecrypt.h
+++ b/include/codecrypt.h
@@ -15,7 +15,7 @@ namespace ccr {
 
 	};
 
-	class permutation : public vector<unsigned int> {
+	class permutation : public std::vector<unsigned int> {
 
 	};
 
@@ -26,7 +26,14 @@ namespace ccr {
 	namespace mce {
 		class privkey {
 		public:
-			matrix 
+			matrix Sinv;
+			permutation Pinv;
+
+			matrix h;
+			permutation hsys;
+
+			polynomial g;
+			matrix sqInv; //"cache"
 
 			int decrypt(const bvector&, bvector&);
 		};
diff --git a/src/main.cpp b/src/main.cpp
index fba61c6..7a69dce 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,6 @@
 
+#include "codecrypt.h"
+
 int main()
 {
 	return 0;