A kind of rfid reader-writer, rfid system and blockchain network

Abstract

The invention discloses an RFID reader-writer. The RFID reader-writer comprises an antenna, an analog front end connected with the antenna, a bus, an encryption and decryption chip and a processor. The analog front end, the encryption and decryption chip and the processor all transmit data through the bus. The analog front end is used to receive a public key, to-be-processed data and a first encrypted string, wherein the public key, the to-be-processed data and the first encrypted string are sent by an electronic tag through the antenna, and send the to-be-processed data and the first encrypted string to the encryption and decryption chip. The encryption and decryption chip is used to decrypt the first encrypted string according to the public key corresponding to the electronic tag to acquire a first abstract, hash the received data to be processed to acquire a second abstract, and compare the first abstract and the second abstract. The encryption and decryption chip is further used to transmit the received data to be processed to the processor through the bus when the chip determines that the first abstract is the same as the second abstract. The invention further provides an RFID system blockchain network. Safe and reliable data transmission between the RFID reader-writer and the electronic tag is realized.

Description

technical field [0001] The present invention relates to the technical field of RFID, in particular to an RFID reader-writer, an RFID system and a block chain network. Background technique [0002] Radio Frequency Identification (RFID) technology is an automatic identification technology that can exchange data by using wireless signals. Compared with traditional automatic identification technologies such as bar codes and contact cards, RFID technology has many advantages. For example, data can be read or written at a long distance, directional or non-directional, without keeping the identified target visible; data can be read through external materials, can work in harsh environments, and can process multiple electronic tags at the same time; information that can be stored A large amount can be used to physically locate objects through tags and so on. [0003] In the existing RFID system, the electronic tag and the RFID reader are transmitted in plain text. Once a hacker in...

AI Technical Summary

Problems solved by technology

[0003] In the existing RFID system, the electronic tag and the RFID reader are transmitted in plain text. Once a hacker intercepts the unique ID in the tag, it can forge the tag and deceive the system, especially in the field of UHF RFID technology. Its working range can reach up to 10 meters, and it is extremely easy to be intercepted to transmit information

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