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Is there a way to setup a Linux box to enable authentication by inserting correct android phone with correct software in it to allow user to login?

So when there is a login prompt shown user should be able to just connect her/his android and voila; user has logged in.

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This old SuperUser question covers some similar ground and there's a few suggestions that this could be done easiest with Bluetooth, but no actual apps that help… – GAThrawn Jun 23 '11 at 9:05

This probably would work similarly to an RSA Security Token.

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it doesn't seem to have released? or is it? – Power-Inside Jun 23 '11 at 4:43
@Power-Inside: I think they're referring to this app: – Lie Ryan Jun 23 '11 at 5:45

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