Add _init() and _free() for hash modules
diff --git a/include/polarssl/ripemd160.h b/include/polarssl/ripemd160.h
index 754322d..e3b66c9 100644
--- a/include/polarssl/ripemd160.h
+++ b/include/polarssl/ripemd160.h
@@ -67,6 +67,20 @@
ripemd160_context;
/**
+ * \brief Initialize RIPEMD-160 context
+ *
+ * \param ctx RIPEMD-160 context to be initialized
+ */
+void ripemd160_init( ripemd160_context *ctx );
+
+/**
+ * \brief Clear RIPEMD-160 context
+ *
+ * \param ctx RIPEMD-160 context to be cleared
+ */
+void ripemd160_free( ripemd160_context *ctx );
+
+/**
* \brief RIPEMD-160 context setup
*
* \param ctx context to be initialized