validate_config!

# File activerecord/lib/active_record/encryption/scheme.rb, line 78
        def validate_config!
          raise Errors::Configuration, "ignore_case: can only be used with deterministic encryption" if @ignore_case && !@deterministic
          raise Errors::Configuration, "key_provider: and key: can't be used simultaneously" if @key_provider_param && @key
        end