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System and method of authentifying

An identification code, a series of technologies, applied in the field of identifying items, can solve the problem of counterfeit items, which may allow multiple use of this item (such as using software), or multiple use of this location (such as using a swimming pool, etc.

Inactive Publication Date: 2005-08-10
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this existing device is that someone with ulterior motives may find out the encryption mechanism by feeding a non-random sequence of bits to the semiconductor device, causing the encrypted array to perform a series of operations with the directly readable array. Compare
This may result in a counterfeit item, while the authentication program will say that the item is authenticated
In addition, it is possible to allow multiple uses of the item (such as exploiting software), or multiple uses of the location (such as utilizing a swimming pool) that would otherwise only be permitted once

Method used

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  • System and method of authentifying
  • System and method of authentifying
  • System and method of authentifying

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Embodiment Construction

[0045] The drawings are schematic in nature, disclosing only embodiments. Modifications and changes within the scope of this application will readily occur to those skilled in the art. In the various drawings, the same reference numerals are used for the same or similar parts.

[0046] figure 1 A first embodiment of a memory 10 representing a device, in particular a semiconductor device, of the present invention. The memory 10 includes: a sequencer 30 , a readout control unit 50 , a nonvolatile storage unit 60 , a serial storage unit 70 , and a multiplexer 40 . The nonvolatile memory unit 60 can be divided into a first part 11 and a second part 12 . The nonvolatile memory unit 60 is connected to the serial memory unit 70 via a bidirectional bus.

[0047] The memory operates as follows: The sequencer 30 receives the clock signal 21 and two input signals 31 , 32 . These signals 21, 31, 32 usually come from a card reader. The input signals 31, 32 may be binary bits and serv...

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Abstract

The device comprises a memory ( 10 ) with a first section ( 11 ) and a second section ( 12 ). The second section ( 12 ) can be read only after erasure of the first section ( 11 ). The memory is suitable for authentication purposes, in that the first section ( 11 ) contains a first code part and the second section contains a second code part of an identification code. The device is preferably an semiconductor device and can be integrated in articles and in record carriers.

Description

technical field [0001] The invention relates to a system comprising a memory, said memory being provided with a first and a second part, each having a series of memory elements, this memory being adapted to store an identification code, said identification code being readable once, May be used for identification purposes. [0002] The invention also relates to a method of authenticating an item provided with an identification code stored in a memory, wherein a reader compares the identification code stored in the memory of the system with at least one reference code. Background technique [0003] Such a system and such a method are disclosed in US-A5032708. A known system is a semiconductor device with a write-once read-once memory using fuses as storage elements. The fuse indicates the state of a particular bit in either of the two memory arrays, one of which is directly readable and the other is encrypted. To check the authenticity of this system, the reader generates a...

Claims

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Application Information

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IPC IPC(8): G06F1/00G06F21/73G06F21/78G06K17/00G06K19/10G07F7/00G07F7/10G11C11/34G11C16/22
CPCG11C16/22G06F21/78G06F21/73
Inventor B·J·E·范伦斯
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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