In internet banking how does the automatic PIN generator work?

Posted on August 25th, 2009 by admin

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Banking


Sometimes I ve seen people who use internet banking carry around a small key-tag like gadget which when pressed will generate a PIN number to access their accounts online.

Whats this system called? And how does it work?

How does the server in the bank know what random PIN number is generated?

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Filed under: Other - Computers

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One Response to “In internet banking how does the automatic PIN generator work?”

  1. David D, on August 25th, 2009 at 11:41 pm Said:

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    Basically, you take a seed number, the current time, and a complicated bit of maths, and you get a different number. The server and the gadget both know all three of those (each gadget gets a different number) so generate the same numbers at the same times.
    has more details.

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