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I recently had to configure Strongswan with Certificate Authentication to a Checkpoint GW and got lost a bit in all the articles I could find about the openssl utility and how to generate a CA, CSRs, sign a certificate and so on.
I will summarize here the steps required for generating the CA/cert so that everything is in a single place.

I give an example with RSA and one with ECDSA.

The changes are minimal.

On the Checkpoint side I only had to import the CA from Strongswan side and configure it under the Public Key auth pertaining to the Network Interoperable Device (representation of 3rd party device Checkpoint wise).

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Author's picture

Mihai Tanasescu

All Rounder and Jack of all trades (master of none? :) ).
Sailing the Cloud world with my fantastic team@Aviatrix, former Network, Systems Engineer (Cisco, Juniper, Linux, Openshift, Openstack).
A flavor of Security added to the mix (Offensive Security OSCE).
If there’s anything new and cool, then I like to learn about it. I’m also a fan of deep diving under the hood of a product to see what makes it tick as well as what breaks it.

Solutions Architect @ Aviatrix