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Load Driver for AES Acceleration on Intel CPUs PDF
Wednesday, 26 November 2014
Some of i3, i5 or i7 versions of latest Intel CPUs have support for AES encryption. For FreeBSD to see AES instructions on Intel CPUs a driver must be loaded. In order to do that run the following command:

  kldload aesni

Also you can configure FreeBSD to load AES instructions driver at boot time by adding the following lines in /boot/loader.conf:


To know if you have support for AESNI look in /var/log/messages. If you have support the following message will appear:

kernel: aesni0: <AES-CBC,AES-XTS> on motherboard

If you do not have support for AES in the CPU then you will see:

kernel: aesni0: No AESNI support.

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