they should not use the default way of sending the channel messages.
Instead, they should use channel private keys to encrypt and decrypt
the channel messages. Channel private keys are keys that are known
-only by the clients who have joined the channel. Sservers and
+only by the clients who have joined the channel. Servers and
routers do not know the key and cannot decrypt the messages. When
message is sent between two routers they are merely re-encrypted with
the session key but not decrypted since the router do not have the