-extern int LegicRfReader(int bytes, int offset);
-extern void LegicRfWriter(int bytes, int offset);
-extern void LegicRfRawWriter(int offset, int bytes);
+extern int LegicRfReader(int offset, int bytes, int iv);
+extern void LegicRfWriter(int offset, int bytes, int iv);
+extern void LegicRfRawWriter(int address, int data, int iv);
+
+uint32_t get_key_stream(int skip, int count);
+void frame_send_tag(uint16_t response, uint8_t bits, uint8_t crypt);
+void frame_sendAsReader(uint32_t data, uint8_t bits);