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Secondly, the consumer uses the phone to read the product tag to attain the product’s RFID code and pass it to the anti-counterfeiting server. Once the code matches with the RFID coding standard of the corporate products, the server queries its cryptographic algorithm to produce the random data and passes to the client phone, at the same time the server computes the random data according to the cryptographic algorithm and
conserves the computing results.
Thirdly, the client phone sends the random data to the tag when it received from the server, after the tag’s internal calculation, the result will be sent to the mobile phone and finally be sent by the mobile phone to the server to check.
Finally, the server will check the data received from its own conservation previously, and resend the information “the product is genuine” to the mobile phone if they are consistent.
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