+void gost_key(gost_ctx * c, const byte * k);
+/* Set key into context without key mask */
+void gost_key_nomask(gost_ctx * c, const byte * k);
+/* Set key into context */
+void magma_key(gost_ctx * c, const byte * k);
+/* Set master 256-bit key to be used in TLSTREE calculation into context */
+void magma_master_key(gost_ctx *c, const byte *k);