Re: newbie - door lock with smartcard

In Reply to: newbie - door lock with smartcard posted by gauthier on March 31, 2003 at 11:48:01:

You could imagine something like that:

BC = basic Card
DL = door lock system

DL---Power UP--->BC
+-----ART--------

---GetIdApplication--+
+----"DL AccessCard"---

---CheckPIN(xxx)-----+
+------OK/KO---------

--GetSign(random)--+EC167Sign(random) (use Kprive)

+--- RndSigned-------
EC167Verify(RndSigned)
(use Kpublic)

With this you have authentified the card and you can open the door
If you lose the card, nobody can use this because of the PIN code (be sure to lock the card after 3 or 4 attemps)

Frederic

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