I've created a Google Cloud Policy Based Classic VPN. The far end is a Cisco ASA and they have asked me to provide
'the configuration text file, because it will include the phase1 and 2 encryption and authentication protocols.'
This doesn't sound like an unreasonable request, but I can't find anywhere to obtain this data. Does it exist? (I know very little about VPNs....) or is the data available somewhere?
At first have a look at this article. You can find details about IPsec and IKE support in the documentation:
Cloud VPN only supports a pre-shared key (shared secret) for authentication. You must specify a shared secret when you create the Cloud VPN tunnel. This same secret must be specified when creating the tunnel at the peer gateway.
For ciphers and configuration parameters supported by Cloud VPN, see Supported IKE ciphers.
In addition, have a look at Using third-party VPNs with Cloud VPN:
Any third-party device or service that supports IPSEC and IKE versions 1 or 2 should be compatible with Cloud VPN. For more information, see Supported IKE ciphers.
there are some examples available. Step by step configuration guide available for Cisco ASA 5505 with Classic VPN (supports static routes only).
If something goes wrong you should check Troubleshooting guide.
