+ This may be called to start the key agreement with <nickname>.
+ This command has effect only if the <nickname> has replied to
+ your key agreement request. You will see a notify on the
+ screen when the reply arrives. The <hostname> and <port> is the
+ hostname and port of the remote client's key agreement server.
+ The request tells the connection protocol used, usually TCP.
+ If UDP was requested it must be provided.
+
+Examples:
+
+ Set channel private key to current channel, and list all keys:
+
+ /KEY CHANNEL * set very_secret_key_this_is
+ /KEY CHANNEL * list
+
+ Set private message key with a friend:
+
+ foobar: /KEY MSG friend set secretkey
+ friend: /KEY MSG foobar set secretkey
+
+ Perform key agreement:
+
+ bar: /KEY MSG foo agreement 10.2.1.7 5000
+ foo: /KEY MSG bar negotiate 10.2.1.7 5000
+
+ bar: /KEY MSG foo agreement 10.2.1.7 5000 UDP
+ foo: /KEY MSG bar negotiate 10.2.1.7 5000 UDP
+
+See also: WHOIS, CHANNEL, GETKEY