Posted by:
root
15 years, 10 months ago
Simple, really.
There are two factors: possession of the private key and knowledge
of the PIN. The private key is stored on the client. Our PC client, for
example, this key is in a password-protected PKS12 encrypted file. If
someone steals this file and brute-force attacks it and gets the
passcode, they are only half-way there.
They still need the PIN. The PIN is stored encrypted on the WiKID
server. Losing the private key is the equivalent of losing a hardware
token. You're only half-way there.
Typical software tokens store the PIN, the secret and the algorythm all in the client. Clearly this is not the way to do it.
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