Decentralized access control framework
First Claim
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1. A decentralized access control system whereby access authorization decision making is decentralized, the system comprising:
- at least one access controlling device, wherein the access controlling device provides a first parameter that enables a decision relating to access authorization of a user; and
,at least one user carried device carried by the user and interacting with the access controlling device, wherein the user carried device stores a second parameter that enables the decision relating to the access authorization of the user at the instance of presenting the user carried device to the access controlling device, and wherein the decision is made as a function of both the first parameter and the second parameter.
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Abstract
A functional architecture is provided for decentralizing the authorization function of an access control system that incorporates user carried access devices, such as smart cards, and door controllers that interact so as to make access decisions. Access to individual rooms is guarded by parameters partially carried by the user carried access devices and partially included in the door controllers.
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19 Claims
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1. A decentralized access control system whereby access authorization decision making is decentralized, the system comprising:
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at least one access controlling device, wherein the access controlling device provides a first parameter that enables a decision relating to access authorization of a user; and
,at least one user carried device carried by the user and interacting with the access controlling device, wherein the user carried device stores a second parameter that enables the decision relating to the access authorization of the user at the instance of presenting the user carried device to the access controlling device, and wherein the decision is made as a function of both the first parameter and the second parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A smart card useful in a decentralized access control system whereby access authorization decision making is decentralized, the smart card comprising:
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a memory storing policy rules, wherein the policy rules enable decisions to be made at instances of presenting the smart card to an access controller controlling access to a restricted area, and wherein the decisions relate to access to the restricted area by a user of the smart card; and
,a processor coupled to the memory and arranged to enable the decisions based upon the policy rules and a system context transmitted to the smart card, wherein the system context is based on an environment relating to the restricted area. - View Dependent Claims (18, 19)
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Specification