:orphan:

.. title:: CONFIG_BT_CTLR_FAST_ENC

.. kconfig:: CONFIG_BT_CTLR_FAST_ENC

CONFIG_BT_CTLR_FAST_ENC
#######################

*Fast Encryption Setup*

Type: ``bool``

Help
====

.. code-block:: none

    Enable connection encryption setup in 4 connection events.
    Peripheral will respond to Encryption Request with Encryption Response
    in the next connection event, and will transmit Start Encryption
    Request PDU in the same connection event, hence completing encryption
    setup in 4 connection events. Encrypted data would be transmitted as
    fast as in 4th connection event from Encryption Request.

Direct dependencies
===================

\ :kconfig:`BT_CTLR_LE_ENC <CONFIG_BT_CTLR_LE_ENC>` && \ :kconfig:`BT_CONN <CONFIG_BT_CONN>` && \ :kconfig:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :kconfig:`BT_CTLR <CONFIG_BT_CTLR>` && \ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y if \ :kconfig:`BT_HCI_RAW <CONFIG_BT_HCI_RAW>`

Kconfig definition
==================



At ``<Subsystem>/bluetooth/controller/Kconfig.ll_sw_split:483``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Subsystem>/Kconfig:9`` → ``<Subsystem>/bluetooth/Kconfig:181`` → ``<Subsystem>/bluetooth/controller/Kconfig:789``

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → Bluetooth Controller → Advanced features

.. code-block:: kconfig

    config BT_CTLR_FAST_ENC
    	bool "Fast Encryption Setup" if BT_CTLR_ADVANCED_FEATURES
    	default y if BT_HCI_RAW
    	depends on BT_CTLR_LE_ENC && BT_CONN && BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT
    	help
    	  Enable connection encryption setup in 4 connection events.
    	  Peripheral will respond to Encryption Request with Encryption Response
    	  in the next connection event, and will transmit Start Encryption
    	  Request PDU in the same connection event, hence completing encryption
    	  setup in 4 connection events. Encrypted data would be transmitted as
    	  fast as in 4th connection event from Encryption Request.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*