Add _init() and _free() for hash modules
diff --git a/include/polarssl/md2.h b/include/polarssl/md2.h
index 96da06c..952b0bf 100644
--- a/include/polarssl/md2.h
+++ b/include/polarssl/md2.h
@@ -61,6 +61,20 @@
md2_context;
/**
+ * \brief Initialize MD2 context
+ *
+ * \param ctx MD2 context to be initialized
+ */
+void md2_init( md2_context *ctx );
+
+/**
+ * \brief Clear MD2 context
+ *
+ * \param ctx MD2 context to be cleared
+ */
+void md2_free( md2_context *ctx );
+
+/**
* \brief MD2 context setup
*
* \param ctx context to be initialized