REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1792 Hmac(Md5|Sha1|Sha256)GetContextSize() use a deprecated macro HMAC_MAX_MD_CBLOCK defined in openssl. They should be dropped to avoid misuses in the future. For context allocation and release, use HmacXxxNew() and HmacXxxFree() instead. Cc: Xiaoyu Lu <xiaoyux.lu@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Xiaoyu Lu <xiaoyux.lu@intel.com>