Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Secure RFID tag random number automatic updating method

An RFID tag and automatic update technology, applied in the field of radio frequency identification research, can solve the problems of high cost of label production, achieve high security, reduce algebraic association, and resist tracking attacks

Inactive Publication Date: 2016-12-07
GUANGDONG UNIV OF TECH
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method solves the problem of high label production cost in the current RFID system, and at the same time improves the security and authentication efficiency of RFID authentication

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Secure RFID tag random number automatic updating method
  • Secure RFID tag random number automatic updating method
  • Secure RFID tag random number automatic updating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with application example accompanying drawing, the present invention is described in further detail, what used in this example is Rabin encryption algorithm, Shamir A. has carried out security proof (Shamir A.SQUASH-A newMAC with provable security properties) to this encryption algorithm for highly constrained devices such asRFID tags[C] / / Proc of Fast Software Encryption. Berlin: Springer, 2008: 144-157). However, the implementation method of the present invention is not limited thereto.

[0025] The present invention is realized through the following steps, as figure 1 :

[0026] (1) In the label initialization stage, two random numbers R of length L are saved new and R old , and save tK=1 to indicate that the random number is updated legally (tK=0 indicates that the random number is not updated legally). where R new It will be used as a label random number in the next authentication, and after each legal authentication, R new and R old will...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An RFID authentication method has the capacity of resisting tracking attack, the capacity is not only realized by simple secret key updating, a random number requires to be generated in a tag, and the random number is added to computing of authentication process transmission information. A generator of the random number brings increasing of the design complexity and cost of the tag so that the design of a random number automatic updating method has important research significance and use value. The invention provides a secure RFID tag random number automatic updating method. The conventional random number generator is replaced, and the random number is added to computing of the authentication process transmission information so that the RFID tag is ensured to have different feedback information in each time of authentication, and thus the effect of preventing tag tracking can be realized. The random number automatic updating method is based on the original encryption algorithm in the tag, such as HASH, MIXBITS and Rabin, etc. According to the method, the problem of high manufacturing cost of the tag of the present RFID system can be solved, and the security and the authentication efficiency of RFID authentication can be enhanced.

Description

technical field [0001] The invention relates to the field of radio frequency identification research, in particular to a method for automatically updating tag random numbers in a safe RFID system, wherein the random numbers are used for the calculation of transmission information in the RFID authentication process. Background technique [0002] Radio Frequency Identification (RFID) is a technology that uses radio frequency signals to achieve contactless information transmission, and uses the transmitted information to achieve authentication and identification purposes. With the popularization of RFID, the specifications, cost and performance requirements of RFID tags are getting higher and higher. Small size, low cost, high performance and high security are called standards for measuring the quality of RFID systems. [0003] An RFID system usually includes three parts: a back-end server system, an RFID reader, and an RFID tag. Due to the limited processing power of the tag ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06K19/073G06F7/58
CPCG06K19/07318G06F7/588
Inventor 欧毓毅魏棉裕
Owner GUANGDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com