Physical access control system with smartcard and methods of operating
AssigneeUTC Fire & Security Americas Corporation, Inc.
InventorsKhalil W. Yacoub, Anshuman Sinha
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Abstract
An improved physical access control system has an online portion and an offline portion. A smartcard is configurable to transport access control information between the online portion and offline portion. The smartcard is further configurable to receive an offline reader identifier from an offline reader, and to control access of the smartcard holder to an offline entry/exit point. The smartcard is further configurable to carry a revoked list that is transmitted to each offline reader accessed. Methods of operating the improved physical access control system are also disclosed.
Claims30
A physical access control system, comprising:
- an online portion;
- an offline portion;
- a smartcard configurable to transfer information between the online portion and offline portion.
A smartcard, comprising:
- a computer processor;
- and
- a memory coupled with the computer processor,
- wherein the computer processor is configurable to;
- receive an offline reader identifier from an offline reader,
- compare the received offline reader identifier to access control information stored in the memory of the smartcard,
- determine an access privilege associated with the reader identifier,
- match the determined access privilege with credentials stored in the memory of the smartcard, and
- output a signal to the offline reader that causes the offline reader to grant or deny access to an offline entry/exit point.
A method, comprising:
- opening a secure communication channel between a smartcard and an offline reader;
- and
- transferring information between the smartcard and the offline reader over the secure communication channel.
A method, comprising:
- opening a secure communication channel between a smartcard and an offline reader using one or more cryptographic keys;
- determining whether the smartcard is valid;
- and
- transferring an offline reader identifier to the smartcard.
A method, comprising:
- receiving a reader identifier from an offline reader;
- and
- comparing the received reader identifier to access control information stored in the memory of the smartcard.
Dependencies are inferred from the claim text.