Method trafficKey

key_schedule.go:28–32

trafficKey generates traffic keys according to RFC 8446, Section 7.3.

(trafficSecret []byte)

// trafficKey generates traffic keys according to RFC 8446, Section 7.3.
func (c *cipherSuiteTLS13) trafficKey(trafficSecret []byte) (key, iv []byte) {
	key = tls13.ExpandLabel(c.hash.New, trafficSecret, "key", nil, c.keyLen)
	iv = tls13.ExpandLabel(c.hash.New, trafficSecret, "iv", nil, aeadNonceLength)
	return
}

// finishedHash generates the Finished verify_data or PskBinderEntry according
// to RFC 8446, Section 4.4.4. See sections 4.4 and 4.2.11.2 for the baseKey