nil { newSecret = make([]byte, hash().Size()) } return hkdf.Extract(hash, newSecret, currentSecret) } 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 ( resumptionBinderLabe = "res binder" clientEarlyTrafficLa = "c e traffic" clientHandshakeTraff = "c hs traffic" serverHandshakeTraff = "s hs traffic" clientApplicationTra...