On Fri, 13 Sep 2013 17:23:22 +0530, Prabhunath G said:

Suppose there is no hardware support for encryption/decryption for Wi-Fi devices

1) Do not use WEP. It's busted. It's *known* busted. You transmit packets for more than a minute or so using WEP, you may as well not bother with crypto at all. Yes, it's really that busted. 2) You're much better off spending the $15 to get a wireless card that actually has hardware WPA2 support on it. The devices are cheap, there's no reason to inflict pain on yourself. I'd not be at all surprised if a card that doesn't have crypto support isn't *also* lacking other hardware support for WPA/WPA2 So while it may well be *possible* to do it in software, I'd have to rank it as one of the more masochistic ideas I've heard in a long time.