Use proper functions with just a macro wrapper around them to minimise
the amount of code inside the macros. We also update the "settable"
functions now that they take a "provctx" parameter.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12573)
Some KDF implementations were available before the current EVP_KDF API.
They were used via EVP_PKEY_derive. There exists a bridge between the old
API and the EVP_KDF API however this bridge itself uses a legacy
EVP_PKEY_METHOD. This commit implements a provider side bridge without
having to use any legacy code.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12573)
