| 摘要 |
The invention relates to a method for at least temporarily enabling bidirectional communication between a transponder (T) comprising a non-volatile memory region and a base station (B). In said method, the transponder (T) receives messages in an at least partially muted state without sending any information with respect to data from the non-volatile memory region, and the base station (B) transmits a data stream to the transponder (T) in order to enable communication. The disclosed method is characterized in that the data stream is linked to a symmetrical password (P) for transmission purposes, the transponder (T) extracts the enabling signal (F) from the received data stream (M) containing the symmetrical password (P), and the transponder (T) is at least temporarily enabled once the enabling signal (F) has been verified as valid. The invention further relates to a transponder comprising means for carrying out such a method. |
