Scalable method for access control
First Claim
1. A method for specifying access authorization to at least one memory area of a transponder, particularly a passive and/or backscatter-based transponder, the method comprising:
- assigning the memory area access control information, the access control information comprising at least one configurable master access control information and write access to the memory area is released at least by a first configuration of the master access control information and write access to the memory area is blocked by a second configuration of the master access control information;
storing the access control information in the transponder;
assigning the master access control information least one first settable sub-access control information;
scaling the master access control information by the assignment of the first sub-access control information so that access authorization specified by the configuration of the master access control information is adapted to at least one additional requirement.
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Accused Products
Abstract
A method for specifying access authorization to at least one memory area of a transponder is provided, in which the memory area is assigned access control information, whereby the access control information comprises at least one configurable master access control information, and write access to the memory area is released at least by a first configuration of the master access control information and write access to the memory area is blocked by a second configuration of the master access control information, whereby in the method the access control information is stored further in the transponder, the access control information is assigned at least one first settable sub-access control information, and the information is scaled by the assignment of the first sub-access control information to the master access control information, so that access authorization specified by the configuration of the master access control information is adapted to at least one additional requirement. The invention relates further to scalable transponders and an RFID system comprising a scalable transponder.
48 Citations
18 Claims
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1. A method for specifying access authorization to at least one memory area of a transponder, particularly a passive and/or backscatter-based transponder, the method comprising:
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assigning the memory area access control information, the access control information comprising at least one configurable master access control information and write access to the memory area is released at least by a first configuration of the master access control information and write access to the memory area is blocked by a second configuration of the master access control information; storing the access control information in the transponder; assigning the master access control information least one first settable sub-access control information; scaling the master access control information by the assignment of the first sub-access control information so that access authorization specified by the configuration of the master access control information is adapted to at least one additional requirement. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transponder, particularly passive and/or backscatter-based transponder, for an RFID system, comprising:
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at least one transponder; and at least one reader unit, with at least one memory area, wherein the memory area is assigned access control information to specify access authorization to the memory area, wherein the access control information comprises at least one configurable master access control information, wherein write access to the memory area is released at least by a first configuration of the master access control information and write access to the memory area is blocked by a second configuration of the master access control information, wherein the access control information comprises at least one first sub-access control information, and wherein the master access control information is scaled by the first sub-access control information, so that access authorization specified by the configuration of the master access control information is adapted to at least one additional requirement. - View Dependent Claims (16, 17, 18)
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8. A method for specifying access authorization to at least one memory area of a passive and/or backscatter-based transponder, the method comprising:
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assigning the memory area access control information, the access control information comprising at least one configurable master access control information, the master access control information comprising two bits, write access to the memory area being released by a first configuration of a first bit of the master access control information, and write access to the memory area being blocked by a second configuration of the first bit of the master access control information, and permanence of the access control information is specified by the second bit of the master access control information; storing the access control information in the transponder; assigning the access control information at least one settable sub-access control information; and dividing the memory area into at least two memory blocks, wherein access authorization to the memory blocks is specified individually by the sub-access control information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A transponder, particularly a passive and/or backscatter-based transponder, for an RFID system, comprising:
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at least one transponder; and at least one reader unit having at least one memory area, the memory area being assigned access control information to specify access authorization to the memory area, and the access control information comprising at least one configurable master access control information, wherein the master access control information comprises two bits, wherein write access to the memory area is released at least by a first configuration of a first bit of the master access control information and write access to the memory area is blocked by a second configuration of the first bit of the master access control information, wherein permanence of the access control information is specified by the second bit of the master access control information, wherein the access control information comprises at least one first sub-master access control information, and wherein the memory area is divided into at least two memory blocks, access authorization to the memory blocks being specified individually by the sub-access control information.
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Specification