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RE: iButton Control of your doors!
- To: <ukha_d@xxxxxxx>
- Subject: RE: iButton Control of your doors!
- From: "Dr John Tankard" <jtankard@xxxxxxx>
- Date: Mon, 16 Oct 2000 11:52:59 +0100
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
>
> On the ibutton subject, does the CC Concepts one use the
> encrypted ibuttons
> or just the standard (fairly trivial to clone) ID ones? What are
others
> using for access control?
>
I think it is the standard button. But to clone it you will need to get
hold of a valid button, and that is no worse (perhaps better) than copying
a
key or swipe card. I gather that some systems use the ibuttons with EEPROM
and store a second key which is updated every time the button is used a bit
like code hopping RF systems
John
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