EarlySecret struct { secret []byte hash func() hash.Hash } func NewEarlySecret[H hash.Hash](h func() H, psk []byte) *EarlySecret { return &EarlySecret{ secret: extract(h, psk, nil), hash: func() hash.Hash { return h() }, } } func (s *EarlySecret) ResumptionBinderKey() []byte { return deriveSecret(s.hash, s.secret, resumptionBinderLabe, nil) } // ClientEarlyTrafficSe derives the client_early_traffic_secret from the // early secret and the transcript up to the ClientHello. func (s *EarlySecret) ClientEar...