Encryption and Decryption process used

RE: Encryption and Decryption process used

Simon — Wed, 17 Apr 2019 11:34:47 GMT

Lets continue the discussion in this thread.

RE: Encryption and Decryption process used

Anubhav — Tue, 16 Apr 2019 09:49:58 GMT

I added the NRF_LOG_INFO statements in my function to check if the particular function is called or no!

According to the function are called but the strings are not sent over ble as because I am not able to see the received strings in nRF toolbox app.

RE: Encryption and Decryption process used

Anubhav — Tue, 16 Apr 2019 09:46:40 GMT

Hi,

Thanks for a whole lot of information. It was very helpful.

I have a small doubt regarding the above project.

In my code, I am able to send a string from my phone to the nRF52840 board through ble which is getting displayed in nRF Toolbox app. But I am not able to send a string from my peripheral to the phone vial ble.

Can you please tell me the reason for this?

RE: Encryption and Decryption process used

Simon — Tue, 16 Apr 2019 09:22:34 GMT

I would recommend you to read the documentation for the Cryptography library and the different frontend and backend modules. Eventually you should take a look at this link, which explains how the nrf_crypto frontend and multiple backends can be configured.

E.g. if you are using LESC, you have to call compute_and_give_dhkey(..)-->nrf_crypto_ecdh_compute(..), and inside the latter function you call BACKEND_IMPL_GET(..) in order to get the backend specifc information. The frontend and backend used depends on the defines in the sdk_config.h file.

If anything is unclear, pleas ask.

Best regards,

Simon