Bluetooth communication system capable of increasing generation efficiency of cypher keys required for data transmission between Bluetooth host device and Bluetooth device set, and related Bluetooth device set
摘要
說明書
In other words, after the indication value is generated by the first member device 120, the Bluetooth host device 110 and the first member device 120 may omit many traditional key parameter negotiation steps, and instead adopt a highly simplified approach to generate the corresponding first cypher key Key-1 and second cypher key Key-2. Similarly, the Bluetooth host device 110 and the second member device 130 may also omit many traditional key parameter negotiation steps, and instead adopt a highly simplified approach to generate the corresponding third cypher key Key-3 and fourth cypher key Key-4. As a result, it can significantly reduce the required time for generating the first cypher key Key-1, the second cypher key Key-2, the third cypher key Key-3, and the fourth cypher key Key-4.
In the operation 1030, the processing circuit 117 of the Bluetooth host device 110 may use the third cypher key Key-3 to conduct Bluetooth data transmissions with the second member device 130 through the host-side communication circuit 111.
In the operation 1032, the second control circuit 135 of the second member device 130 may use the fourth cypher key Key-4 to conduct Bluetooth data transmissions with the Bluetooth host device 110 through the second communication circuit 131.
In practice, the Bluetooth host device 110 and other member devices in the Bluetooth device set 102 (e.g., the third member device 140) may adopt the aforementioned approach to respectively generate the cypher keys required for conducting subsequent Bluetooth data transmission according to the indication value generated by the first member device 120.
