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One-time authentication system

A verification system, the only technology, applied in the field of verification systems, can solve the problems of complex and expensive smart labels

Active Publication Date: 2009-10-28
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Doing so will turn simple smart tags into complex, more expensive smart tags

Method used

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Examples

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Embodiment Construction

[0037] figure 1 A block diagram of a system 100 according to the invention is shown. The system includes a reading station 110 and a plurality of electronic tags (indicated as 120, 122, and 124). More than one readout station can be used if desired. The readout station and the electronic tag can communicate with each other. Data can be exchanged in both directions. Preferably, the wireless / contactless communication takes place in a manner known from or similar to wireless / contactless ID cards, like the Mifare system of Philips. In this system, both the readout station and the tag are equipped with antennas. Typically, the read station also provides power to the tag through the antenna. Advantageously, a communication technique is employed that allows multiple tags to be in the vicinity of the read station without blocking communication. Such communication systems and communication techniques are known and are not the subject of the present invention, but can be used in t...

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Abstract

An authentication system includes a plurality of electronic tags (120, 122, 124) that are each associated with a respective unique identity ID. The tags include a memory (220) with a first memory location (222) for storing a pre-computed challenge and a second memory location (224) for storing a pre-computed response that is associated with the challenge. The first memory location (222) is non-readable from outside the tag. An access circuit (210) only provides the response after having received a challenge that matches the challenge stored in the first memory location. A reader station (110) obtains the identity associated with a tag. It then determines a corresponding challenge and sends the challenge to the tag. It receives a response from the tag and verifies the authenticity of the tag by comparing the received response to a response that corresponds to the challenge.

Description

technical field [0001] The invention relates to a verification system, comprising a plurality of electronic tags and at least one readout station for verifying the authenticity of the electronic tags. The invention also relates to electronic tags for use in such systems. Background technique [0002] Currently, smart labeling systems are used in a wide range of applications, from public transport, road tolls and passenger tickets to airline luggage marking. It is expected that more products will need to be equipped with smart tags in the future, such as clothing or supermarket products. In such applications, contactless communication between tag readers and smart tags is increasingly common. This improves processing time and accuracy and reduces queuing times. Such tags are also sometimes called RF-ID (Radio Frequency Identification). [0003] The hardware performance of various smart labels on the market varies greatly. Some electronic tags can only store data that can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/073G06F1/00G07F7/10G06K19/07
CPCG06Q20/40975G06K19/0723G07F7/1008G06Q20/341G06F2221/2103G06K19/073
Inventor S·范里恩斯沃J·R·布兰德斯
Owner NXP BV