Here is a final indication of the openssl speed: root@VPNServer:~# openssl speed -evp aes-256-cbc Doing aes-256-cbc for 3s on 16 size blocks: 195944 aes-256-cbc's in 0.42s Doing aes-256-cbc for 3s on 64 size blocks: 180031 aes-256-cbc's in 0.47s Doing aes-256-cbc for 3s on 256 size blocks: 133113 ae...

As a comparison, here is the same measurement made on my DS213:

root@VPNServer:~# time openvpn --test-crypto --secret /volume1/@appstore/VPNCenter/etc/openvpn/keys/ta.key --verb 0 --tun-mtu 20000 --cipher aes-256-cbc

real 1m0.356s
user 0m50.690s
sys 0m2.690s

Yes, I see your point it is slower. I was hoping for a speed improvement for openvpn, as well. I guess this speed-up would also affect https decodes, so it has a wide area of application. That is every time you use Duckduckgo, and www.raspberrypi.org as a minimum. Perhaps some kind person will compi...

I tried to compile version 1.8 of cryptodev-linux using git clone and it failed on 'make ' and 'make install'. Could you explain how to do this please. It certainly appears to be working to me. It is around 4 times faster that my Synology NAS (DS2013) which has a 2GHz ARM5 processor with crypto in h...