Novel electronic label read-write module built-in with safe processing chip

Abstract

The invention relates to a novel electronic tag read-write module embedded with a security processing chip. The electronic tag read-write module is embedded with the security processing chip which is provided with a security processing module. The security processing module calculates an access key according to a mother key and a distributed factor received, and directly transmits the access key to an electronic tag processing module for process; the transmitting of the key is completed in the security processing chip, and the key can not be intercepted from outside. The module has the advantages that the access key of the electronic tag is calculated inside the chip through the security processing chip, thereby guaranteeing the safety of the access key.

Description

technical field [0001] The invention relates to a read-write module of an electronic label, in particular to a novel electronic label read-write module with transmission encryption and access authority control embedded with a security processing chip using radio communication as a transmission medium. Background technique [0002] High-frequency electronic tags and their read-write modules are currently the most widely used radio-frequency tag products. Traditional electronic tag read-write modules have limited protection for accessing the keys of electronic tags. The key to access the electronic tag can be intercepted in some ways during the process of passing it to the electronic tag reading and writing module, which will cause great harm to the security of the entire electronic tag application system. [0003] At present, there are several common key transmission methods for electronic tag reading and writing modules, including direct key transmission and indirect key tra...

AI Technical Summary

Problems solved by technology

[0006] The indirect transfer of keys is obviously more secure than the direct transfer of keys, but there are still certain security risks inside the traditional electronic tag read-write module

like image 3 As shown, the traditional electronic tag reading and writing module expands a SAM card through the 7816 interface to calculate the key through the divergence factor, and then obtains the calculated access key through the 7816 interface; but the 7816 interface is an open protocol, only need Some special equipment can monitor the communication message of this interface, thereby intercepting the access key of the electronic label

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