Method extract

key_schedule.go:62–67

extract implements HKDF-Extract with the cipher suite hash.

(newSecret, currentSecret []byte)

// extract implements HKDF-Extract with the cipher suite hash.
func (c *cipherSuiteTLS13) extract(newSecret, currentSecret []byte) []byte {
	if newSecret == nil {
		newSecret = make([]byte, c.hash.Size())
	}
	return hkdf.Extract(c.hash.New, newSecret, currentSecret)
}

// nextTrafficSecret generates the next traffic secret, given the current one,
// according to RFC 8446, Section 7.2.