https://devzone.nordicsemi.com/f/nordic-q-a/94167/softdevice-api-to-access-rng-hardware-peripheralHello Nordic Team, While going through this page on peripherals used by Softdevice https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/sd_resource_reqs/hw_block_interrupt_vector.html, it is mentioned that peripheral with Restricted access typeen-USTelligent Community 13Wed, 23 Nov 2022 12:11:06 GMThttps://devzone.nordicsemi.com/thread/397162?ContentTypeID=1Wed, 23 Nov 2022 12:11:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3654d8b9-422a-45a3-b9e4-687f28eb5d11Simonr<p>Hi</p> <p>The sd_rand_ functions found <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s140.api.v7.2.0/group___n_r_f___s_o_c___f_u_n_c_t_i_o_n_s.html?cp=4_7_4_2_2_7_2_44#gaad12d1ebe6550185897326166e3d4591%20+_+_+_+_+_+_+_+">here</a>&nbsp;lets the SoftDevice use the RNG peripheral to generate true non-deterministic random numbers. Alternatively the <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v17.1.0%2Flib_crypto_rng.html">RNG module in the crypto frontend</a> modules can be used in order to use the CryptoCell CC310 cryptographic subsystem.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>