Integrating ecdh example into my ble project based on s132

RE: Integrating ecdh example into my ble project based on s132

Kenneth — Tue, 02 Jul 2019 14:12:33 GMT

I believe there are a few BLE peripheral examples that support LESC:

\nRF5_SDK_15.3.0_59ac345\examples\ble_peripheral\experimental\ble_app_hids_keyboard_pairing_nfc

\nRF5_SDK_15.3.0_59ac345\examples\ble_peripheral\experimental\ble_app_hrs_nfc_pairing

If you set NFC_PAIRING_MODE to NFC_PAIRING_MODE_LESC_JUST_WORKS it will handle LESC bonding. The actual crypto backend is configured through sdk_config.h.

Best regards,
Kenneth

RE: Integrating ecdh example into my ble project based on s132

yunusemrecatalcam — Sat, 15 Jun 2019 08:09:04 GMT

[quote userid="2111" url="~/f/nordic-q-a/48360/integrating-ecdh-example-into-my-ble-project-based-on-s132/192062"]Also, if you want to use the RNG peripheral, then you need to use the softdevice api to fetch RNG values, you can't use the RNG peripheral directly when the softdevice is enabled.[/quote]

I get that I can't use methods from ecdh or any other crypto example. Should I use cryptocell API for implementing a diffie hellman application? And an additional question, I see that all example projects placed on SDK files are designed for non-softdevice systems, is it true? Is there a place that I can find examples for usage of crypto API on softdevice?

Thanks.

RE: Integrating ecdh example into my ble project based on s132

Kenneth — Tue, 11 Jun 2019 12:17:14 GMT

The error code 34050 means:

#define NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED (NRF_ERROR_CRYPTO_ERR_BASE + 0x02) /**< The context was not initialized prior to this call or it was corrupted. Call the corresponding init function for the algorithm to initialize it. */

Also, if you want to use the RNG peripheral, then you need to use the softdevice api to fetch RNG values, you can't use the RNG peripheral directly when the softdevice is enabled.