class Net::SSH::Transport::Kex::DiffieHellmanGroupExchangeSHA1

def build_signature_buffer(result)
  response = Net::SSH::Buffer.new
  response.write_string data[:client_version_string],
                        data[:server_version_string],
                        data[:client_algorithm_packet],
                        data[:server_algorithm_packet],
                        result[:key_blob]
  response.write_long MINIMUM_BITS,
                      data[:need_bits],
                      MAXIMUM_BITS
  response.write_bignum dh.p, dh.g, dh.pub_key,
                        result[:server_dh_pubkey],
                        result[:shared_secret]
  response
end