sd_ble_gap_auth_key_reply()

uint32_t sd_ble_gap_auth_key_reply	(	uint16_t	conn_handle,
		uint8_t	key_type,
		uint8_t const *	p_key )

#include <ble_gap.h>

Reply with an authentication key.

This function is only used to reply to a BLE_GAP_EVT_AUTH_KEY_REQUEST or a BLE_GAP_EVT_PASSKEY_DISPLAY, calling it at other times will result in an NRF_ERROR_INVALID_STATE.

Events generated

This function is used during authentication procedures, see the list of events in the documentation of sd_ble_gap_authenticate.

Relevant Message Sequence Charts

Peripheral Legacy Bonding: Passkey Entry, User Inputs on Peripheral

Peripheral Legacy Bonding: Out of Band

Peripheral LESC Bonding: Numeric Comparison

Peripheral LESC Bonding: Passkey Entry, User Inputs on Peripheral

Central Legacy Bonding: Passkey Entry, User Inputs on Central

Central Legacy Bonding: Out Of Band

Central LESC Bonding: Numeric Comparison

Central LESC Bonding: Passkey Entry, User Inputs on Central

Parameters

[in]	conn_handle	Connection handle.
[in]	key_type	See GAP Authentication Key Types.
[in]	p_key	If key type is BLE_GAP_AUTH_KEY_TYPE_NONE, then NULL. If key type is BLE_GAP_AUTH_KEY_TYPE_PASSKEY, then a 6-byte ASCII string (digit 0..9 only, no NULL termination) or NULL when confirming LE Secure Connections Numeric Comparison. If key type is BLE_GAP_AUTH_KEY_TYPE_OOB, then a 16-byte OOB key value in little-endian format.

Return values

NRF_SUCCESS	Authentication key successfully set.
NRF_ERROR_INVALID_ADDR	Invalid pointer supplied.
NRF_ERROR_INVALID_PARAM	Invalid parameter(s) supplied.
NRF_ERROR_INVALID_STATE	Authentication key has not been requested.
BLE_ERROR_INVALID_CONN_HANDLE	Invalid connection handle supplied.