Who Am I When I'm Mobile?

An interesting article looking at some of the issues concerning wireless authentication. Proving that the person is who they say they are when they’re using a mobile device presents some different challenges than other types of authentication. As the article points out, many authentication schemes use the standard “something you hold plus something you know” approach. However, there is also the question of whether or not the information should be device specific, or over the network. And, if it’s over the network, how do you deal with situations where there’s no network present?

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