Does it matter whether it's ia32 or ia64 even for an x64 processor? Shouldn't there be some way for me to check whether AES is enabled or being used (other than running a speed test) either in dmesg or /proc/ or with openssl itself? I'm a little confused, and surprised/shocked that there isn't a way to probe the status of whether the AES-NI is a) present and b) enabled/utilized.
re: OPENSSL_ia32cap=~0x200000200000000 so forgive me for asking lots of dumb questions but that would be $ set OPENSSL_ia32cap=~0x200000200000000 $ export OPENSSL_ia32cap correct? And how do I re-enable it without having to reboot the system? What's the value that I should be putting in on the right-hand-side of the equal sign? Your help is much appreciated. Sincerely, Ewen On Thu, Mar 14, 2013 at 7:35 PM, Dr. Stephen Henson <st...@openssl.org> wrote: > On Thu, Mar 14, 2013, Ewen Chan wrote: > >> So this is a partial continuation from the discussion thread that I >> started yesterday in regards to using AES-CBC. >> >> I've got an Intel Core i7 3930K that supports AES-NI and I spent the >> greater part of last night trying to get openssl to work or at least >> recognize it, but it doesn't seem to want to do that. >> > > It it probably recognising it and you don't realise it. OpenSSL 1.0.1 > automatically switches to AES-NI at the EVP level without going through an > explicit AES-NI ENGINE. > > You can disable AES-NI detection with the environment variable: > > OPENSSL_ia32cap=~0x200000200000000 > > You should see a considerable speed up with "openssl speed" by comparing the > two. > > Steve. > -- > Dr Stephen N. Henson. OpenSSL project core developer. > Commercial tech support now available see: http://www.openssl.org > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager majord...@openssl.org ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
