v1.13.2/website/docs/language/state/examples/encryption/configuration.tf

terraform {
  encryption {
    key_provider "some_key_provider" "some_key_provider_name" {
      # Key provider options here
    }

    method "some_method_type" "some_method_name" {
      # Method options here
      keys = key_provider.some_key_provider.some_key_provider_name
    }

    state {
      # Encryption/decryption for state data
      method = method.some_method_type.some_method_name
    }

    plan {
      # Encryption/decryption for plan data
      method = method.some_method_type.some_method_name
    }

    remote_state_data_sources {
      # See below
    }
  }
}