[erlang-questions] crypto:hmac/3 using hardware acceleration

[Ben Browitt]

Profiling my server with eprof show that my app spends most of the time on
crypto:hmac(sha, Key, Data) while crypto:stream_encrypt/2 using aes_ctr is
much faster.

This answer [1] says that HMAC_* routines are software based and don't use
hardware. The hmac nif seems to use them [2].

Is my resolution correct?
Is it possible to use EVP_* functions instead of HMAC_* functions in the
nif?

[1] https://stackoverflow.com/a/20322002
[2] https://github.com/erlang/otp/blob/master/lib/crypto/c_src/hmac.c
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