strongswan/testing/tests/openssl-ikev1/ecdsa-certs/hosts/dave/etc/strongswan.conf

# /etc/strongswan.conf - strongSwan configuration file

pluto {
  load = aes des sha1 sha2 md5 gmp openssl pubkey random hmac curl
}

# pluto uses optimized DH exponent sizes (RFC 3526)

libstrongswan {
  dh_exponent_ansi_x9_42 = no
}