// client avoid cross-connection tracking from a network observer.
	hs.hello.ticketSupported = true
	hs.finishedHash = newFinishedHash(c.vers, hs.suite)
	hs.finishedHash.discardHandshakeBuffer()
	if err := transcriptMsg(hs.clientHello, &hs.finishedHash); err != nil {
		return err
	}
	if _, err := hs.c.writeHandshakeRecord(hs.hello, &hs.finishedHash); err != nil {
		return err
	}

	// thus no signatures are needed in that case either.
	if isResume || (len(c.config.Certificates) == 0 && c.config.GetClientCertificate == nil) {
		hs.finishedHash.discardHandshakeBuffer()
	}

	if err := transcriptMsg(hs.hello, &hs.finishedHash); err != nil {
		return err
	}
	if err := transcriptMsg(hs.serverHello, &hs.finishedHash); err != nil {
		return err
	}