}
	switch c.Params().Name {
	case "P-256":
		return 1, 32, true
	case "P-384":
		return 2, 48, true
	case "P-521":
		return 3, 80, true
	}
	return 0, 0, false // A mismatch
}

func hashToBytes(dst, hash []byte, c elliptic.Curve) {
	l := len(dst)
	if n := c.Params().N.BitLen(); n == l*8 {
		// allocation free path for curves with a length that is a whole number of bytes
		if len(hash) >= l {
			// truncate hash

			h.WriteString(cfg.Name)
			h.Write(Slash)
			h.WriteString(cfg.Namespace)
			h.Write(Separator)
		}
	}
	h.Write(Separator)

	for _, vs := range r.DelegateVirtualServices {
		h.Write(hashToBytes(vs))
		h.Write(Separator)
	}
	h.Write(Separator)

	for _, mergedDR := range r.DestinationRules {
		for _, dr := range mergedDR.GetFrom() {
			h.WriteString(dr.Name)
			h.Write(Slash)