I am developing an ecdh-curve25519 crypto application which should be based on your HW accellerator on my dev board.
At the moment I am able to generate a [Shared Secret] by using as from your guide (DA1468x_DA15xxx_SDK_18.104.22.1681/doc/html/group___e_c_d_h.html).
Checking flags and resources buffer it seems all OK!
This "shared secret" should be shared with another generated with the same curve25519 on another external device (think about a linux-pc) using "libsodium library" (again, same ecdh-curve).
Now, at this point something wrong happens: the two shared secret are completely different.
Did you have any idea or even experienced such a problem?
Did you ever tested the algorithm for compatibility with other shared secret generators?
Thank you in advance
[PC-linux]:: libsodium+linux ubuntu 18