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[FAQ] CC2564C: BT (BR/EDR) SIG Errata 11838 - LMP Encryption Key Minimum Size change

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Part Number: CC2564C

–        The minimum encryption key size used for the LMP_encryption_key_size_req PDU shall be set to at least 7 octets

–        All BR/EDR Controllers shall implement the Read Encryption Key Size command (0x1408).

  • TI has identified that there are no changes required for the Read Encryption Key Size command and the change in the minimum encryption key size requirement applies to the TI Bluetooth controllers with BR/EDR support:

–        TI Dual-Mode Bluetooth controllers: CC256x, CC256xB, CC2564C, WL12xx, and WL18xx devices

 

Note: The current and existing Bluetooth Core Specifications for Low Energy (LE) devices implementing LE Legacy Pairing and LE Secure Connections (LESC) already require a minimum encryption key length of 7 octets and are thus not applicable to Bluetooth Erratum 11838.

1 Reply

  • Thanks for the info!

    -Katie

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