}
		}
	}
	if selectedGroup == 0 {
		c.sendAlert(alertHandshakeFailure)
		return errors.New("tls: no ECDHE curve supported by both client and server")
	}
	if clientKeyShare == nil {
		ks, err := hs.doHelloRetryRequest(selectedGroup)
		if err != nil {
			return err
		}
		clientKeyShare = ks
	}
	c.curveID = selectedGroup

	ecdhGroup := selectedGroup
	ecdhData := clientKeyShare.data