# File lib/s3/right_s3_interface.rb, line 574
    def retrieve_object_and_verify(params, &block)
      AwsUtils.mandatory_arguments([:md5], params)
      resp = retrieve_object(params, &block)
      return resp if resp[:verified_md5]
      raise AwsError.new("Retrieved object failed MD5 checksum verification: #{resp.inspect}")
    end