[strongSwan] IKEv1 - Authentication Methods - RFC 2409 Public Key Encryption support in Strongswan

[Emil Salib]

Hello,
My question is to do with IKEv1 Phase 1 Authentication. RFC 2409 specifies 4
different Authentications: A shared secret, A digital signature, Public key
encryption and Revised public key encryption. Using StrongSwan 4.4.0, I was able
to set up net2net PSK , net2net digital signature using both RAW RSA and X.509
certificates.  Is there a way to set up a net2net with the 2409 public key
encryption authentication method (where the ID and Nonce in the second and third
ISKAMP (main mode) messages are encrypted) using StrongSwan?
Thanks
Emil