https://devzone.nordicsemi.com/f/nordic-q-a/56575/decoding-message-using-nrf-microcontrollers-hardwareCurrently I am developing application which run on nRF52832. In this application I have to decode and encode messages using RSA 2048-bit keys pair. Currently I am using ARM MBED library and software solution. Unfortunately it takes at least 8 s to decodeen-USTelligent Community 13Wed, 15 Jan 2020 19:01:42 GMThttps://devzone.nordicsemi.com/thread/229289?ContentTypeID=1Wed, 15 Jan 2020 19:01:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0f40b3da-71a9-4a2d-9f07-ec7c22bcc1feEinar Thorsrud<p>Hi,</p> <p>The CC310 on the nRF52840 and nRF9160 does support RSA up to 2048 bit, so I expect you will get a decent improvement in performance. You can look at &lt;nRF5 SDK&gt;\examples\crypto\nrf_cc310\rsa\main.c for RSA examples. I do not have any performance numbers at hand but you can take the example and adapt it to your test (same operation, same key size, the same size of data set) so that it can be compared directly with your other numbers.</p><div style="clear:both;"></div>