Implement custom handshake

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@raul
is connectionGater workable ? for implementing custom handshake methods …

i tried

func (cg *MyConnectionGater) InterceptUpgraded(conn network.Conn) (allow bool, reason control.DisconnectReason) {
	//TODO implement me
	//panic("implement me")
	fmt.Println("Status : ", conn.ConnState().Transport)

	if conn.Stat().Direction == 1 {
		challengeStream, err := conn.NewStream(context.Background())
		if err != nil {
			fmt.Println("Failed to start stream")
			return false, 0
		}
		_, err = challengeStream.Write([]byte("hello"))
		if err != nil {
			fmt.Println("Failed to send challenge")
			return false, 0
		}
	} else {
		streams := conn.GetStreams()
		if len(streams) == 0 {
			return false, 0
		}
		challengeStream := streams[0]
		var buf []byte
		_, err := challengeStream.Read(buf)
		if err != nil {
			fmt.Println("Failed to receive challenge")
			return false, 0
		}
	}

	return true, 0
}

but it fails to open a stream

is there any ways to authorise a peer with CA certs