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Method for interactive authentication between RFID (radio frequency identification) card and card reader

An interactive authentication, 1. RFID technology, applied in the field of authentication between RFID cards and card readers, can solve problems such as potential safety hazards, easy to be cracked, etc., achieve high security level, enhance security and crack difficulty, low cost effect

Active Publication Date: 2015-04-29
FREEVISION TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the authentication process of MIFARE technology is easy to be cracked, making the annual use of billions of MIFARE card systems have considerable security risks

Method used

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  • Method for interactive authentication between RFID (radio frequency identification) card and card reader
  • Method for interactive authentication between RFID (radio frequency identification) card and card reader
  • Method for interactive authentication between RFID (radio frequency identification) card and card reader

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specific Embodiment

[0047] A kind of specific embodiment, the second group of data comprises 8 byte card reader random number and 8 byte chip ID, the second encrypted data is also a 16 byte encrypted data, card reader random number adopts the random number based on AES algorithm The number of chips is generated. After decrypting the second encrypted data in step 22, the 8-byte card reader random number and the 8-byte chip ID are obtained, and the 8-byte card reader random number is verified. After the verification is successful, the authentication is passed.

[0048] The communication between the card reader 1 and the RFID card 2 of the present invention is to send a command to the RFID card 2 through the card reader 1, and the RFID card 2 feeds back information to the card reader 1 after receiving the command, a two-way interactive verification method, It can make the majority of system integrators improve the security level of the existing system at a lower cost. It can eliminate potential saf...

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Abstract

The invention relates to the technical field of electronics, in particular to a method for interactive authentication between an RFID (radio frequency identification) card and a card reader. Interactive authentication is performed through a first authentication step and a second authentication step. The first authentication step comprises: sending an authentication command to the RFID card by the card reader; generating an encryption identifier through a random number chip for making a response by the RFID card; encrypting in combination with a first group of data according to the encryption identifier by the card reader to obtain first encrypted data; sending the first encrypted data to the RFID card by the card reader; decrypting and verifying the first encrypted data by the RFID card. According to the method, very high safety level can be guaranteed, the cost is relatively low, and the method can be widely used in various civil items; meanwhile, the random number length required for the whole authentication process is increased by the identifier of the RFID card and random numbers generated by the random number chip, so that the safety and the cracking difficulty of a system are further improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an authentication method between an RFID card and a card reader. Background technique [0002] Radio Frequency Identification (RFID, Radio Frequency Identification) technology is a non-contact automatic identification technology. Its basic principle is to use the transmission characteristics of radio frequency signals and space coupling to realize automatic identification of identified objects. Radio frequency identification technology has the advantages of good readability, fast reading speed, high stability, and large storage space, and is widely used in various fields such as finance, telecommunications, medical care, insurance, and transportation. However, due to the openness of radio frequency identification technology, there is a greater risk of being attacked during application, and security and privacy issues have become a bottleneck restricting its further developmen...

Claims

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Application Information

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IPC IPC(8): H04L9/32G06K17/00
Inventor 王永春赵振河叶少明
Owner FREEVISION TECH CO LTD
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