How to find out AES-NI (Advanced Encryption) Enabled on Linux System

To find out if AES-NI (Advanced Encryption Standard New Instructions) is enabled on a Linux system, you can use the grep command to search for the aes entry in the /proc/cpuinfo file. The syntax is as follows:

grep -q aes /proc/cpuinfo && echo "AES-NI is enabled" || echo "AES-NI is not enabled"

This will search the /proc/cpuinfo file for the aes entry and display a message indicating whether AES-NI is enabled or not.

For example, if AES-NI is enabled, the output might look something like this:

AES-NI is enabled

If AES-NI is not enabled, the output might look something like this:

AES-NI is not enabled

Alternatively, you can use the lscpu command to display information about the CPU of your system, including whether AES-NI is supported or not. The syntax is as follows:

lscpu | grep -i aes

This will display a line with the AES flag if AES-NI is supported by your CPU.

For example, if AES-NI is supported, the output might look something like this:

AES:                   AES-NI

If AES-NI is not supported, the output will be empty.

Keep in mind that AES-NI is an optional feature that may or may not be supported by your CPU, and it may require additional software or hardware support to be used. Consult your CPU documentation or check with your system administrator to find out more about AES-NI support on your system.