Function deriveSecret

tls13/tls13.go:51–56

(hash func() H, secret []byte, label string, transcript hash.Hash)

}

func deriveSecret[H hash.Hash](hash func() H, secret []byte, label string, transcript hash.Hash) []byte {
	if transcript == nil {
		transcript = hash()
	}
	return ExpandLabel(hash, secret, label, transcript.Sum(nil), transcript.Size())
}

const (
	resumptionBinderLabel         = "res binder"