I found out, that Arduino Portenta H7 has a built-in NXP SE050 chip, which is really cool.
However, whenever I searched for the library, I only found one ECC-sign example (https://docs.arduino.cc/tutorials/portenta-c33/user-manual#secure-element). I would like to ask, why there is no library for AES, HMAC, RSA-Encryption, as the NXP SE050 clearly supports this things according to its data sheet.
PS.: I know, there are AES implementation sketches for the Arduino itself, but I'm looking for the library which performs AES directly on the secure element (SE050).
In order to make all relevant information available to any who are interested in this subject, I'll share a link to the pull request mentioned by @jowin202: