https://devzone.nordicsemi.com/f/nordic-q-a/33674/nrf52-sdk15-text-encryption-and-decryption-using-ecdhHi There, i am pretty new to this ble and arm world. i was exploring my nrf52dk with sdk15 cryptography libraries. I have looked into an example of Elliptic Curve Diffie-Hellman ( ECDH ). There i can understand how to generate private and public key en-USTelligent Community 13Thu, 26 Apr 2018 13:46:35 GMThttps://devzone.nordicsemi.com/thread/129984?ContentTypeID=1Thu, 26 Apr 2018 13:46:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b57a622-ef0e-4b51-a56e-4a821e4392aaalbhee<p>Ok. Got it. So, ecdh is used only to calculate secret key on both side. I need to use this calculated secret key to encrypt data using other encryption schemes. My understanding was i can encrypt data using someone else public key and the other party can decrypt that using his private key. However, thank you so much.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/129903?ContentTypeID=1Thu, 26 Apr 2018 09:22:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d904104-a848-42cf-ab4b-9e7028ec96a9FormerMember<p>The purpose of the calculated shared secret key is to use as the key when encrypting a message with a given encryption algorithm.</p> <p>The test example in nrf_crypto shows how encrypt and decrypt messages with various encryption algorithms.</p><div style="clear:both;"></div>