The IPsec VPN Gateway IKE must use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.

Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The VPN gateway must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

This requirement also applies to Zero Trust initiatives.

Verify the IPsec VPN Gateway IKE uses a NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.

If the IPsec VPN Gateway IKE does not use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic, this is a finding.

Configure the IPsec VPN Gateway IKE to use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.