two-factor OTP systems

[jeff murphy <jcmurphy () BUFFALO EDU>]

I'm looking for experiences/recommendations on two-factor OTP systems
suitable for plugging into RADIUS and/or Active Directory.

I'd be particularly interested in systems that can use smartphones as
the token generator. Google lead me to:

http://www.deepnetsecurity.com/products2/MobileID.asp

but I haven't found much else on that front.

jeff

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