RFID (Radio Frequency Identification Device) chip password protection method

A password protection and chip technology, which is applied to record carriers used in machines, instruments, computer components, etc., can solve problems such as user troubles, no password protection function, and card reader synchronous upgrade, and achieve the effect of preventing malicious tampering

Active Publication Date: 2012-08-22
四川凯路威科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Currently public ISO / IEC 15693 standard or ISO / IEC14443 standard RFID chips generally do not have a password protection function, or need to add special instructions to write and lock user data blocks for password protection, which requires a synchronous upgrade of the card reader , causing unnecessary trouble to users

Method used

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  • RFID (Radio Frequency Identification Device) chip password protection method
  • RFID (Radio Frequency Identification Device) chip password protection method

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Embodiment Construction

[0027] The invention provides a password protection method for an RFID chip. The RFID chip is an RFID chip conforming to the ISO / IEC15693 standard or the ISO / IEC14443 standard. The chip is composed of a memory, an RF module and a digital module. The chip does not need a power supply and is directly connected to the The upper antenna and the antenna of the card reader are coupled to obtain energy and read and write data in the chip;

[0028] Such as figure 1 Shown, described RFID chip password protection method comprises the following steps:

[0029] 1. Define a data block in the user data area of ​​the RFID chip digital module as a password data block, and other parts of the user data area are called other data blocks.

[0030] 2. Write the password in the password data block.

[0031] 3. If the password data block is not locked, the chip is consistent with the general chips in the existing market and has no password protection function.

[0032] 4. If the password data blo...

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PUM

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Abstract

The invention discloses a Radio Frequency Identification Device (RFID) chip password protection method, wherein an RFID chip accords with the ISO/IEC15693 standard or ISO/IEC14443 standard. The chip is composed of a memory, a Radio Frequency (RF) module and a digital module. The energy can be obtained by directly connecting the chip to an antenna and an antenna of a card reader through a coupling manner without a power supply and the data in the chip can be read and written. The RFID chip password protection method comprises the steps of: defining a data block in a user data area of a chip digital module as a password data block, wherein other parts of the user data area are named other data blocks; writing a password in the password data block; starting a password protection function while locking the password data block; and directly writing data in the other data blocks or invalidly locking the other data blocks, re-writing the previous password in the password data block, and successfully writing data in the other data blocks or locking the other data blocks under the condition of continuous filed strength. According to the invention, the original password system is not changed based on the prior ISO/IEC15693 standard or ISO/IEC14443 standard, the password protection for writing and locking operations of the data in the chip is reinforced so that the data inside the chip is prevented from being maliciously distorted, and the growing security demands of data are met.

Description

technical field [0001] The invention relates to a password protection method for an RFID chip. Background technique [0002] RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification, commonly known as electronic tags. [0003] RFID radio frequency identification is a non-contact automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is fast and convenient. [0004] RFID is a simple wireless system for controlling, detecting and tracking objects. [0005] The basic working principle of RFID technology is not complicated: after the tag enters the magnetic field, it receives the radio frequency signal sent by the reader, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/073
Inventor 庄雪亚邸鹏
Owner 四川凯路威科技有限公司
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