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eivindj-nordic merged 2 commits into from
Aug 29, 2026
Merged

samples: bluetooth: update minimum key size in security parameters #845

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samples: bluetooth: update minimum key size in security parameters
anhmolt Aug 20, 2026
b00a6e9
doc: peer_manager: update minimum key size in sec params
anhmolt Aug 20, 2026
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12 changes: 6 additions & 6 deletions doc/nrf-bm/libraries/bluetooth/peer_manager.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -171,8 +171,8 @@ The following code example shows how the Peer Manager is initialized:
.keypress = SEC_PARAM_KEYPRESS,
.io_caps = SEC_PARAM_IO_CAPABILITIES,
.oob = SEC_PARAM_OOB,
.min_key_size = SEC_PARAM_MIN_KEY_SIZE,
.max_key_size = SEC_PARAM_MAX_KEY_SIZE,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
.kdist_peer.enc = 1,
Expand Down Expand Up @@ -226,7 +226,7 @@ The following list shows the required security parameters for common use cases:
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_NONE,
.oob = false,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 0,
.kdist_own.id = 0,
Expand All @@ -245,7 +245,7 @@ The following list shows the required security parameters for common use cases:
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_NONE
.oob = false,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand All @@ -264,7 +264,7 @@ The following list shows the required security parameters for common use cases:
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_KEYBOARD_ONLY,
.oob = false,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand All @@ -283,7 +283,7 @@ The following list shows the required security parameters for common use cases:
.keypress = 0;
.io_caps = BLE_GAP_IO_CAPS_NONE,
.oob = true,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
13 changes: 8 additions & 5 deletions doc/nrf-bm/release_notes/release_notes_changelog.rst
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Expand Up @@ -181,12 +181,15 @@ Peripheral samples
Bluetooth LE samples
--------------------

* Updated the following samples and applications that do not support pairing to call the :c:func:`sd_ble_gatts_sys_attr_set` function only in response to the :c:macro:`BLE_GATTS_EVT_SYS_ATTR_MISSING` event and not as a response to a :c:macro:`BLE_GAP_EVT_CONNECTED` event:
* Updated:

* :ref:`ug_dfu_firmware_loader` (Bluetooth LE)
* :ref:`ble_lbs_sample`
* :ref:`ble_nus_sample`
* :ref:`ble_mcuboot_recovery_entry_sample`
* All samples that use the :ref:`lib_peer_manager` library to use a minimum encryption key size of 16 bytes in their default security parameters.
* The following samples and applications, which do not support pairing, to call the :c:func:`sd_ble_gatts_sys_attr_set` function only in response to the :c:macro:`BLE_GATTS_EVT_SYS_ATTR_MISSING` event, and not in response to the :c:macro:`BLE_GAP_EVT_CONNECTED` event:

* :ref:`ug_dfu_firmware_loader` (Bluetooth LE)
* :ref:`ble_lbs_sample`
* :ref:`ble_nus_sample`
* :ref:`ble_mcuboot_recovery_entry_sample`

* Removed the authentication status logging from the following samples and applications that do not support pairing (do not use the :ref:`lib_peer_manager` library):

Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_bms/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -507,7 +507,7 @@ static uint32_t peer_manager_init(void)
.keypress = 1,
.io_caps = BLE_GAP_IO_CAPS_DISPLAY_YESNO,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_cgms/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -695,7 +695,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_DISPLAY_YESNO,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_hids_keyboard/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -752,7 +752,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_DISPLAY_YESNO,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_hids_mouse/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -582,7 +582,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_DISPLAY_YESNO,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_hrs/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -394,7 +394,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_DISPLAY_ONLY,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/ble_hrs_central/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_NONE,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
2 changes: 1 addition & 1 deletion samples/bluetooth/peripheral_nfc_pairing/src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,7 @@ static uint32_t peer_manager_init(void)
.keypress = 0,
.io_caps = BLE_GAP_IO_CAPS_NONE,
.oob = 0,
.min_key_size = 7,
.min_key_size = 16,
.max_key_size = 16,
.kdist_own.enc = 1,
.kdist_own.id = 1,
Expand Down
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