From Yoshifumi Nishida on the [IETF Multipath ML](https://mailarchive.ietf.org/arch/msg/multipathtcp/0ONo-LLAvxuJ10dYYS9YeyfNVL8/) > 3: Why does it store just two keys? Or, does it mean it generates a new key when the next key is chosen and throws away the current key?