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 second member device 130 is identified as a member device of the Bluetooth device set 102 by the Bluetooth host device 110, the Bluetooth host device 110 and the second member device 130 may 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. That is, the Bluetooth host device 110 can directly generate the third cypher key Key-3 based on the second parameter P2 decided by the Bluetooth host device 110 while the second member device 130 can directly generate the fourth cypher key Key-4 based on the second parameter P2 decided by the Bluetooth host device 110. As a result, it can significantly reduce the required time for generating the third cypher key Key-3 and the fourth cypher key Key-4.
In the operation 322, 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 324, 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.
