((p "To" " " "enable" " " "authentication," " " "you" " " "must" " " "create" " " "a" " " "zettel" " " "that" " " "stores" " " (a (@ (href . "00001010040200")) "authentication" " " "data") " " "for" " " "the" " " "owner." " " "Then" " " "you" " " "must" " " "reference" " " "this" " " "zettel" " " "within" " " "the" " " (a (@ (href . "00001004010000#owner")) "startup" " " "configuration") " " "under" " " "the" " " "key" " " (kbd "owner") "." " " "Once" " " "the" " " "startup" " " "configuration" " " "contains" " " "a" " " "valid" " " (a (@ (href . "00001006050000")) "zettel" " " "identifier") " " "under" " " "that" " " "key," " " "authentication" " " "is" " " "enabled.") (p "Please" " " "note" " " "that" " " "you" " " "must" " " "also" " " "set" " " "key" " " (kbd "secret") " " "of" " " "the" " " (a (@ (href . "00001004010000#secret")) "startup" " " "configuration") " " "to" " " "some" " " "random" " " "string" " " "data" " " "(minimum" " " "length" " " "is" " " "16" " " "bytes)" " " "to" " " "secure" " " "the" " " "data" " " "exchanged" " " "with" " " "a" " " "client" " " "system."))