Original text:
Document openssl dgst -hmac option
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3700)
[B<-verify filename>]
[B<-prverify filename>]
[B<-signature filename>]
-[B<-hmac key>]
[B<-fips-fingerprint>]
[B<-engine id>]
[B<-engine_impl>]
The actual signature to verify.
-=item B<-hmac key>
-
-Create a hashed MAC using "key".
-
=item B<-mac alg>
Create MAC (keyed Message Authentication Code). The most popular MAC