C•CURE 800/8000 Software Configuration Guide - Tyco Security ...

Smart Card Key OverviewCustom KeysCustom Keys are private keys that are created by a customer to write data toand read data from Smart Cards with increased security. Only a device thatknows the Custom Key(s) for a card’s sector can write to that sector, and onlya reader that knows the Custom Card can read that sector.Therefore, if you program a Smart Card with Custom Keys, your card readersmust also be programmed to read cards with the same Custom Keys. If youchange Custom Keys or add new ones, your readers need to be reprogrammed.Custom Keys are typically configured to Software House Readers usingProgram Cards. These cards are supplied by Software House. If you createcustom keys, you should contact Software House to purchase Program Cardsto program your readers with your custom key(s).Each Custom Key on the system is represented by a file with a.SWK extension. For example, if you create a Key file called “CustomKey,” itwould be stored in a file named CustomKey.SWK. These files is encrypted forsecurity reasons.If the Key folder is deleted, or more importantly, a Key Value is lost, therewill be no way to recover it. In such an extreme case, switching to a newkey could be very cost-prohibitive. A site would need to reprogram all oftheir readers, and reissue new badges. Therefore it is important to save thekey value you choose in a safe and secure location outside of C•CURE ID.Default KeysC•CURE ID includes several default keys that cannot be viewed or modified.Default Keys will not show up on the Smart Card Key Selection dialog box.They are permanently added to C•CURE ID and cannot be viewed ormodified.• $Default MIFARE Read Key. Value: A0, A1, A2, A3, A4, A5• $Default MIFARE Write Key. Value: B0, B1, B2, B3, B4, B5• $Default Transport Key. Value: FF, FF, FF, FF, FF, FFC•CURE 800/8000 Software Configuration Guide 21–3