What is the method of FCS_CKM.4.1 in opnsense

[baranmatin]

Hi Dears.
Can you tell me what is the Destroy cryptographic keys method  ?(FCS_CKM.4.1) in opnsense?

For example in the Fortinet  Fortigate firewall  the destroy cryptographic keys in accordance with a specified cryptographic key destruction method is zeroization.