I suspect the router would need to decrypt the wireless key if it were
encrypted, so the configuration would have to have all the details
required to decrypt it. I'm not sure I'd worry too much about people
getting access to my WLAN key if they already have root access to the
router.
I doubt any non-OpenWRT routers are better. BT routers for example have
the wireless key stored in plain text on a sticker on the router. Then
there's those routers where the default SSID and key are based on the
MAC address... which it broadcasts!
--
Andrew.
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