Passkey activation

[Sascha]

Hello,

we try to use static passkey protection on our devices. we use nrf51 sdk12 with s130. We read a few threads for setting a static passkey like here, here and some other threads.. But we dont find any information or some routines for init and handle the passkey process, when connecting to a device. For example: where to put in the function sd_ble_opt_set() and where is the part in the code, where i can exactly activate the passkey is ON.

Our application: We want to connect with a smartphone as central to a peripheral nRF51 Hardware without display. This should be protected first with a static passkey we defined in main with the following code. We dont use MITM protection.

#define STATIC_PASSKEY        "111111"
uint8_t passkey[] =           STATIC_PASSKEY;

[Sascha]

Hey Alex and Petter, sorry, but we dont get it.
We tried different things.
We took the ble_app_template example with 2 new Characteristics.
In main:
"#define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_DISPLAY_ONLY"
"#define STATIC_PASSKEY "111111"
uint8_t passkey[] = STATIC_PASSKEY;

in gap_params_init():
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);

in our characteristic_add() for the secure characteristic:
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&attr_md.read_perm);

Now, when we are connected, we can see our characteristics. When we try to read out, there is the pin request. If i type in, the connection abort. There is no uart communication for mitm protection, so i think the static passkey is set correct!?