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We're considering a 2 factor TOTP solution on a mobile phone. However, it would be much easier for the user to somehow send the OTP to the server by pushing a button, rather than manually typing in a code. Of course this would require an internet connection, but it would make it a much more user friendly solution. Is there such a solution? And does it have any negative security implications? Or are we better of using some sort of push-based solution like Duo push?

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closed as off-topic by TildalWave, Eric G, Adi, Gilles, AJ Henderson Apr 8 '14 at 13:21

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Im not understanding correctly, what is the difference between what you want to do and Duo push? – Kotzu Apr 7 '14 at 22:04