Hello, I am trying to implement the HKDF algorithm to generate a secret key, and I found a link containing an example of HKDF implementation ( you will find link below in details) but unfortunately, the code is incomplete and I have a few questions.
the link : https://wiki.st.com/stm32mcu/index.php?title=Security:How_to_implement_HKDF_with_the_Cryptographic_library&oldid=11796&diff=prev#HKDF_implementation_example_using_HMAC-SHA256_Cryptographic_library_services .my questions is first, once I ad...